[INFO] cloning repository https://github.com/Inferno214221/rust-basic-types
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInferno214221%2Frust-basic-types'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57b0c59ff11cef719583a495e804a9f9e30ec13f
[INFO] fixing Inferno214221/rust-basic-types against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FInferno214221%2Frust-basic-types" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Inferno214221/rust-basic-types
[INFO] finished tweaking git repo https://github.com/Inferno214221/rust-basic-types
[INFO] tweaked toml for git repo https://github.com/Inferno214221/rust-basic-types written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Inferno214221/rust-basic-types on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Inferno214221/rust-basic-types already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded triomphe v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb
[INFO] running `Command { std: "docker" "start" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking triomphe v0.1.15
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking standard-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::util::error::IndexOutOfBounds`
[INFO] [stdout]  --> src/collections/circular/stack/circ_stack.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::error::IndexOutOfBounds;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/fs/path/abs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `Linux`
[INFO] [stdout]   --> src/fs/mod.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | #![doc(cfg(all(Linux, feature = "fs")))]
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(Linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(Linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::error::IndexOutOfBounds`
[INFO] [stdout]  --> src/collections/circular/stack/circ_stack.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::error::IndexOutOfBounds;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Temporary`
[INFO] [stdout]  --> src/fs/file/options.rs:9:178
[INFO] [stdout]   |
[INFO] [stdout] 9 | ...Error, OpenMode, Permanent, ReadOnly, ReadWrite, TempError, Temporary, Write, WriteOnly};
[INFO] [stdout]   |                                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/fs/path/abs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `Linux`
[INFO] [stdout]   --> src/fs/mod.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | #![doc(cfg(all(Linux, feature = "fs")))]
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(Linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(Linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:21:9
[INFO] [stdout]     |
[INFO] [stdout]  21 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  21 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:38:9
[INFO] [stdout]     |
[INFO] [stdout]  38 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  38 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:48:9
[INFO] [stdout]     |
[INFO] [stdout]  48 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  48 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:60:9
[INFO] [stdout]     |
[INFO] [stdout]  60 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  60 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:83:9
[INFO] [stdout]     |
[INFO] [stdout]  83 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  83 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:90:9
[INFO] [stdout]     |
[INFO] [stdout]  90 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout]  90 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 252 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 267 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let mut tree1 = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree1` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let mut tree1: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                  ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 310 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 310 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 320 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 336 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:349:9
[INFO] [stdout]     |
[INFO] [stdout] 349 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 349 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:359:9
[INFO] [stdout]     |
[INFO] [stdout] 359 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 359 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 397 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 405 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:414:9
[INFO] [stdout]     |
[INFO] [stdout] 414 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 414 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 427 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed for `branch::ConsBranch<i32, _>`
[INFO] [stdout]    --> src/collections/cons/tree/test.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |     let mut tree = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `branch::ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `tree` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 440 |     let mut tree: branch::ConsBranch<_, B> = ConsBranch::new();
[INFO] [stdout]     |                 ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Temporary`
[INFO] [stdout]  --> src/fs/file/options.rs:9:178
[INFO] [stdout]   |
[INFO] [stdout] 9 | ...Error, OpenMode, Permanent, ReadOnly, ReadWrite, TempError, Temporary, Write, WriteOnly};
[INFO] [stdout]   |                                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/fs/path/ops.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn validate_for_concat(input: &OsStr) -> Option<()> {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collections/linked/list/length.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Length {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub const fn new(value: usize) -> Option<Length> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `verify_double_links` is never used
[INFO] [stdout]    --> src/collections/linked/list/linked_list.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 387 | impl<T> LinkedList<T> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 427 |     pub(crate) fn verify_double_links(&self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_non_null` and `as_ptr` are never used
[INFO] [stdout]   --> src/collections/linked/list/node.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<T> NodePtr<T> {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub const fn as_non_null(self) -> NonNull<Node<T>> {
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub const fn as_ptr(self) -> *mut Node<T> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ZeroSizedType` is never constructed
[INFO] [stdout]  --> src/util/alloc.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ZeroSizedType;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CountedDrop` is never constructed
[INFO] [stdout]  --> src/util/alloc.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct CountedDrop(pub Rc<RefCell<usize>>);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/util/alloc.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl CountedDrop {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(value: usize) -> CountedDrop {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BadHasher` is never constructed
[INFO] [stdout]   --> src/util/hash.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct BadHasher {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BadHasherBuilder` is never constructed
[INFO] [stdout]   --> src/util/hash.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct BadHasherBuilder;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/collections/contiguous/array/array.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn as_non_null(&self) -> NonNull<T> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/collections/contiguous/mod.rs:4:9
[INFO] [stdout]     |
[INFO] [stdout]   4 | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/collections/contiguous/vector/vector.rs:355:5
[INFO] [stdout]     |
[INFO] [stdout] 355 |     pub const fn into_parts(self) -> (NonNull<MaybeUninit<T>>, usize, usize) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/collections/contiguous/vector/vector.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 361 | /     pub const unsafe fn from_parts(
[INFO] [stdout] 362 | |         ptr: NonNull<MaybeUninit<T>>,
[INFO] [stdout] 363 | |         len: usize,
[INFO] [stdout] 364 | |         cap: usize,
[INFO] [stdout] 365 | |     ) -> Vector<T> {
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]  --> src/collections/hash/map/error.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct IndexNoCap;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/collections/hash/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]  --> src/util/error.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct IndexOutOfBounds {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/util/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/util/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub index: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]  --> src/util/error.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub len: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/fs/path/ops.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn validate_for_concat(input: &OsStr) -> Option<()> {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `standard-lib` (lib test) due to 32 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0283]: type annotations needed for `ConsBranch<&str, _>`
[INFO] [stdout]    --> src/main.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut list_a = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `list_a` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut list_a: ConsBranch<&_, B> = ConsBranch::new();
[INFO] [stdout]     |                   +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `standard-lib` (bin "standard-lib") due to 1 previous error
[INFO] [stdout] error[E0283]: type annotations needed for `ConsBranch<&str, _>`
[INFO] [stdout]    --> src/main.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut list_a = ConsBranch::new();
[INFO] [stdout]     |         ^^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type must implement `Backend`
[INFO] [stdout] help: the following types implement trait `Backend`
[INFO] [stdout]    --> src/rc/brc.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 | /         impl Backend for $new_type {
[INFO] [stdout] 156 | |             type Inner<T: ?Sized> = $rc_type<T>;
[INFO] [stdout] 157 | |
[INFO] [stdout] 158 | |             fn new<T>(value: T) -> Self::Inner<T> {
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         }
[INFO] [stdout]     | |         ^
[INFO] [stdout]     | |         |
[INFO] [stdout]     | |_________`UseArc`
[INFO] [stdout]     |           `UseRc`
[INFO] [stdout] ...
[INFO] [stdout] 211 |   impl_backend!(Rc, UseRc);
[INFO] [stdout]     |   ------------------------ in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 215 |   impl_backend!(Arc, UseArc);
[INFO] [stdout]     |   -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/rc/triomphe.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout]  10 |   impl Backend for UseTArc {
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^ `UseTArc`
[INFO] [stdout] note: required by a bound in `ConsBranch`
[INFO] [stdout]    --> src/collections/cons/tree/branch.rs:15:29
[INFO] [stdout]     |
[INFO] [stdout]  15 | pub struct ConsBranch<T, B: Backend = UseRc> {
[INFO] [stdout]     |                             ^^^^^^^ required by this bound in `ConsBranch`
[INFO] [stdout]     = note: this error originates in the macro `impl_backend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider giving `list_a` an explicit type, where the type for type parameter `B` is specified
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut list_a: ConsBranch<&_, B> = ConsBranch::new();
[INFO] [stdout]     |                   +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `standard-lib` (bin "standard-lib" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb", kill_on_drop: false }`
[INFO] [stdout] 333ad65d308521b031bcc891c928d5408dbbfca50ec5e19388f1a8a562fcd6eb
