[INFO] fetching crate immutable-seq 0.1.2...
[INFO] testing immutable-seq-0.1.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate immutable-seq 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate immutable-seq 0.1.2
[INFO] finished tweaking crates.io crate immutable-seq 0.1.2
[INFO] tweaked toml for crates.io crate immutable-seq 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate immutable-seq 0.1.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.4.1 (available: v1.0.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v0.4.1
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded debug_unreachable v0.1.1
[INFO] [stderr]   Downloaded unreachable v0.1.1
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac5c06cae71f6e066ca0f9b54916aa0c8b67f79fca2133c81c803a591391fc63
[INFO] running `Command { std: "docker" "start" "-a" "ac5c06cae71f6e066ca0f9b54916aa0c8b67f79fca2133c81c803a591391fc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac5c06cae71f6e066ca0f9b54916aa0c8b67f79fca2133c81c803a591391fc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5c06cae71f6e066ca0f9b54916aa0c8b67f79fca2133c81c803a591391fc63", kill_on_drop: false }`
[INFO] [stdout] ac5c06cae71f6e066ca0f9b54916aa0c8b67f79fca2133c81c803a591391fc63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01277194a94dec963aacf848d1ce30842fd07be204eaffb76585807d1f7d14a3
[INFO] running `Command { std: "docker" "start" "-a" "01277194a94dec963aacf848d1ce30842fd07be204eaffb76585807d1f7d14a3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.4.1
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:275:23
[INFO] [stdout]     |
[INFO] [stdout] 275 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<dyn Invoke<T>>
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<dyn Invoke<T>>
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/finger_tree.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<T,M> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<'_, T,M> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/seq.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "01277194a94dec963aacf848d1ce30842fd07be204eaffb76585807d1f7d14a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01277194a94dec963aacf848d1ce30842fd07be204eaffb76585807d1f7d14a3", kill_on_drop: false }`
[INFO] [stdout] 01277194a94dec963aacf848d1ce30842fd07be204eaffb76585807d1f7d14a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ff90a1d50fe00d04419503e92d380af8ce2aac6d099375dd5beebbde3ee5a88
[INFO] running `Command { std: "docker" "start" "-a" "9ff90a1d50fe00d04419503e92d380af8ce2aac6d099375dd5beebbde3ee5a88", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:275:23
[INFO] [stdout]     |
[INFO] [stdout] 275 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<dyn Invoke<T>>
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<dyn Invoke<T>>
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/finger_tree.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<T,M> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<'_, T,M> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/seq.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |         unsafe {debug_unreachable!()}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stdout]    --> src/finger_tree.rs:275:23
[INFO] [stdout]     |
[INFO] [stdout] 275 |         _ => unsafe { debug_unreachable!() },
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[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: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<dyn Invoke<T>>
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<dyn Invoke<T>>
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/seq_quickcheck.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> tests/seq_quickcheck.rs:522:13
[INFO] [stdout]     |
[INFO] [stdout] 522 |             try!(self.apply_action(action))
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:320:26
[INFO] [stdout]     |
[INFO] [stdout] 320 |     action_shrinker: Box<Iterator<Item=Action<T>>>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 320 |     action_shrinker: Box<dyn Iterator<Item=Action<T>>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn shrink(&self) -> Box<Iterator<Item=Action<T>>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn shrink(&self) -> Box<dyn Iterator<Item=Action<T>>> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:368:29
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn shrink(&self) -> Box<Iterator<Item=ActionSeries<T>>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn shrink(&self) -> Box<dyn Iterator<Item=ActionSeries<T>>> {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/finger_tree.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<T,M> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter(&self) -> Iter<'_, T,M> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/seq.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "9ff90a1d50fe00d04419503e92d380af8ce2aac6d099375dd5beebbde3ee5a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff90a1d50fe00d04419503e92d380af8ce2aac6d099375dd5beebbde3ee5a88", kill_on_drop: false }`
[INFO] [stdout] 9ff90a1d50fe00d04419503e92d380af8ce2aac6d099375dd5beebbde3ee5a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f95791e6ab3db7b928c035113bb7ccb5725ff6ca3c16c7083c91d3505f68abd2
[INFO] running `Command { std: "docker" "start" "-a" "f95791e6ab3db7b928c035113bb7ccb5725ff6ca3c16c7083c91d3505f68abd2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stderr]    --> src/finger_tree.rs:208:17
[INFO] [stderr]     |
[INFO] [stderr] 208 |         unsafe {debug_unreachable!()}
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stderr]    --> src/finger_tree.rs:241:17
[INFO] [stderr]     |
[INFO] [stderr] 241 |         unsafe {debug_unreachable!()}
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stderr]    --> src/finger_tree.rs:258:23
[INFO] [stderr]     |
[INFO] [stderr] 258 |         _ => unsafe { debug_unreachable!() },
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `ndebug`
[INFO] [stderr]    --> src/finger_tree.rs:275:23
[INFO] [stderr]     |
[INFO] [stderr] 275 |         _ => unsafe { debug_unreachable!() },
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]     = help: try referring to `debug_unreachable` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]     = help: the macro `debug_unreachable` may come from an old version of the `debug_unreachable` crate, try updating your dependency with `cargo update -p debug_unreachable`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `debug_unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:183:16
[INFO] [stderr]     |
[INFO] [stderr] 183 |     inner: Box<Invoke<T>>
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 183 |     inner: Box<dyn Invoke<T>>
[INFO] [stderr]     |                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:197:23
[INFO] [stderr]     |
[INFO] [stderr] 197 |             }) as Box<Invoke<T>>
[INFO] [stderr]     |                       ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 197 |             }) as Box<dyn Invoke<T>>
[INFO] [stderr]     |                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/finger_tree.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn iter(&self) -> Iter<T,M> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn iter(&self) -> Iter<'_, T,M> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/seq.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `immutable-seq` (lib) generated 10 warnings (run `cargo fix --lib -p immutable-seq` to apply 4 suggestions)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/seq_quickcheck.rs:125:10
[INFO] [stderr]     |
[INFO] [stderr] 125 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> tests/seq_quickcheck.rs:522:13
[INFO] [stderr]     |
[INFO] [stderr] 522 |             try!(self.apply_action(action))
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:320:26
[INFO] [stderr]     |
[INFO] [stderr] 320 |     action_shrinker: Box<Iterator<Item=Action<T>>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 320 |     action_shrinker: Box<dyn Iterator<Item=Action<T>>>,
[INFO] [stderr]     |                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:150:29
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn shrink(&self) -> Box<Iterator<Item=Action<T>>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn shrink(&self) -> Box<dyn Iterator<Item=Action<T>>> {
[INFO] [stderr]     |                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:368:29
[INFO] [stderr]     |
[INFO] [stderr] 368 |     fn shrink(&self) -> Box<Iterator<Item=ActionSeries<T>>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 368 |     fn shrink(&self) -> Box<dyn Iterator<Item=ActionSeries<T>>> {
[INFO] [stderr]     |                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `immutable-seq` (test "seq_quickcheck") generated 5 warnings (run `cargo fix --test "seq_quickcheck" -p immutable-seq` to apply 3 suggestions)
[INFO] [stderr] warning: `immutable-seq` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/immutable_seq-2183438f8ae350f7)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test lazy::test::test_strict_should_produce_already_evaluated_thunk ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_through_redirect ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_when_accessed ... ok
[INFO] [stdout] test finger_tree::test::test_iter_inner_single ... ok
[INFO] [stdout] test finger_tree::test::test_iter_single ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_just_once ... ok
[INFO] [stdout] test finger_tree::test::test_iter_inner_empty ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_not_evaluate_if_not_accessed ... ok
[INFO] [stdout] test digit::test::test_digit_iter ... ok
[INFO] [stdout] test finger_tree::test::test_iter_empty ... ok
[INFO] [stdout] test node::test::test_node_iter ... ok
[INFO] [stdout] test node::test::test_tree23_measure ... ok
[INFO] [stdout] test lazy::test::test_drop_internal_data_just_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stderr]      Running tests/seq.rs (/opt/rustwide/target/debug/deps/seq-3343b0b483e309e7)
[INFO] [stdout] test test_adjust ... ok
[INFO] [stdout] test test_empty_is_empty ... ok
[INFO] [stdout] test test_empty_len ... ok
[INFO] [stdout] test test_front_empty ... ok
[INFO] [stdout] test test_front_nonempty ... ok
[INFO] [stdout] test test_front_pop_front ... ok
[INFO] [stdout] test test_get_empty ... ok
[INFO] [stdout] test test_back_nonempty ... ok
[INFO] [stdout] test test_get_nonempty ... ok
[INFO] [stdout] test test_back_empty ... ok
[INFO] [stdout] test test_get_out_of_bounds ... ok
[INFO] [stdout] test test_index ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stdout] test test_iter_append ... ok
[INFO] [stdout] test test_back_pop_back ... ok
[INFO] [stdout] test test_iter_empty ... ok
[INFO] [stdout] test test_iter_push_back ... ok
[INFO] [stdout] test test_update ... ok
[INFO] [stdout] test test_iter_push_front ... ok
[INFO] [stdout] test test_iter_singleton ... ok
[INFO] [stdout] test test_remove ... ok
[INFO] [stdout] test test_singleton_len ... ok
[INFO] [stdout] test test_singleton_not_is_empty ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_split ... ok
[INFO] [stdout] test test_split_empty ... ok
[INFO] [stdout] test test_split_singleton ... ok
[INFO] [stdout] test test_vec_macro ... ok
[INFO] [stdout] test test_truncate ... ok
[INFO] [stdout] test test_index_out_of_bounds - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/seq_quickcheck.rs (/opt/rustwide/target/debug/deps/seq_quickcheck-555d1f7f0a554880)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_action_series_drop_slot ... ok
[INFO] [stdout] test test_check_temp ... ok
[INFO] [stdout] test check_model_u32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests immutable_seq
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lazy.rs - lazy::Thunk<T>::new (line 72) ... ignored
[INFO] [stdout] test src/lazy.rs - lazy::lazy (line 13) ... ignored
[INFO] [stdout] test src/seq.rs - seq::seq (line 182) ... ok
[INFO] [stdout] test src/seq.rs - seq::seq (line 193) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f95791e6ab3db7b928c035113bb7ccb5725ff6ca3c16c7083c91d3505f68abd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95791e6ab3db7b928c035113bb7ccb5725ff6ca3c16c7083c91d3505f68abd2", kill_on_drop: false }`
[INFO] [stdout] f95791e6ab3db7b928c035113bb7ccb5725ff6ca3c16c7083c91d3505f68abd2
