[INFO] fetching crate kawaii 0.1.0-alpha...
[INFO] testing kawaii-0.1.0-alpha against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate kawaii 0.1.0-alpha into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate kawaii 0.1.0-alpha
[INFO] finished tweaking crates.io crate kawaii 0.1.0-alpha
[INFO] tweaked toml for crates.io crate kawaii 0.1.0-alpha written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kawaii 0.1.0-alpha 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 4 packages to latest compatible versions
[INFO] [stderr]       Adding ansi_term v0.10.2 (available: v0.12.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded traitobject v0.1.1
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded ansi_term v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] eb8d10978a28b7779f405b783fbc83ac8b634e65056f96960a67e5a30b26df00
[INFO] running `Command { std: "docker" "start" "-a" "eb8d10978a28b7779f405b783fbc83ac8b634e65056f96960a67e5a30b26df00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb8d10978a28b7779f405b783fbc83ac8b634e65056f96960a67e5a30b26df00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb8d10978a28b7779f405b783fbc83ac8b634e65056f96960a67e5a30b26df00", kill_on_drop: false }`
[INFO] [stdout] eb8d10978a28b7779f405b783fbc83ac8b634e65056f96960a67e5a30b26df00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6c4626dcbf9d006ab8cb52c9c32cec1818d28f3e6706f2fa8a4d7dee718420f7
[INFO] running `Command { std: "docker" "start" "-a" "6c4626dcbf9d006ab8cb52c9c32cec1818d28f3e6706f2fa8a4d7dee718420f7", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling traitobject v0.1.1
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling kawaii v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Config`
[INFO] [stdout]   --> src/fmt.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 | use config::{Width, Config};
[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 variable: `f`
[INFO] [stdout]   --> src/fmt.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/fmt.rs:61:36
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]   --> src/fmt.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 37 |     width: Option<usize>,
[INFO] [stdout] 38 |     mode: Mode,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: typemap v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "6c4626dcbf9d006ab8cb52c9c32cec1818d28f3e6706f2fa8a4d7dee718420f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4626dcbf9d006ab8cb52c9c32cec1818d28f3e6706f2fa8a4d7dee718420f7", kill_on_drop: false }`
[INFO] [stdout] 6c4626dcbf9d006ab8cb52c9c32cec1818d28f3e6706f2fa8a4d7dee718420f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3d787c08b94cb35ecbbf7cd064b151ce9df2a362802ae1e6bd02994bcdc4bbd8
[INFO] running `Command { std: "docker" "start" "-a" "3d787c08b94cb35ecbbf7cd064b151ce9df2a362802ae1e6bd02994bcdc4bbd8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling kawaii v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Config`
[INFO] [stdout]   --> src/fmt.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 | use config::{Width, Config};
[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 variable: `f`
[INFO] [stdout]   --> src/fmt.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/fmt.rs:61:36
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]   --> src/fmt.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 37 |     width: Option<usize>,
[INFO] [stdout] 38 |     mode: Mode,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Config`, `Kawaii`, and `Style`
[INFO] [stdout]  --> examples/basic.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use kawaii::{Kawaii, Style, Config};
[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: `Config`
[INFO] [stdout]   --> src/fmt.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 | use config::{Width, Config};
[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: `traits::Kawaii`
[INFO] [stdout]   --> src/util.rs:69:6
[INFO] [stdout]    |
[INFO] [stdout] 69 |     use traits::Kawaii;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Vec<{integer}>: Kawaii` is not satisfied
[INFO] [stdout]   --> examples/basic.rs:9:16
[INFO] [stdout]    |
[INFO] [stdout]  9 |     kawaii::print(vec![1, 2, 3]);
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^ the trait `Kawaii` is not implemented for `Vec<{integer}>`
[INFO] [stdout]    |     |
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `Kawaii`:
[INFO] [stdout]              &'a std::string::String
[INFO] [stdout]              &'a str
[INFO] [stdout]              Rc<Document>
[INFO] [stdout]              f32
[INFO] [stdout]              f64
[INFO] [stdout]              i16
[INFO] [stdout]              i32
[INFO] [stdout]              i64
[INFO] [stdout]            and 7 others
[INFO] [stdout] note: required by a bound in `print`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn print<T: Kawaii>(value: T) {
[INFO] [stdout]    |                 ^^^^^^ required by this bound in `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Foo: Kawaii` is not satisfied
[INFO] [stdout]   --> examples/basic.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     kawaii::print(Foo);
[INFO] [stdout]    |     ------------- ^^^ unsatisfied trait bound
[INFO] [stdout]    |     |
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Kawaii` is not implemented for `Foo`
[INFO] [stdout]   --> examples/basic.rs:5:2
[INFO] [stdout]    |
[INFO] [stdout]  5 |     struct Foo;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    = help: the following other types implement trait `Kawaii`:
[INFO] [stdout]              &'a std::string::String
[INFO] [stdout]              &'a str
[INFO] [stdout]              Rc<Document>
[INFO] [stdout]              f32
[INFO] [stdout]              f64
[INFO] [stdout]              i16
[INFO] [stdout]              i32
[INFO] [stdout]              i64
[INFO] [stdout]            and 7 others
[INFO] [stdout] note: required by a bound in `print`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn print<T: Kawaii>(value: T) {
[INFO] [stdout]    |                 ^^^^^^ required by this bound in `print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kawaii` (example "basic") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Rc<Document>`
[INFO] [stdout]   --> src/util.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |         assert_eq!(kawaii::empty(), Rc::new(Document::Empty));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         Rc<Document>
[INFO] [stdout]    |         Rc<Document>
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `PartialEq` might be missing for `Document`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Document {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ must implement `PartialEq`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `Document` with `#[derive(PartialEq)]`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 + #[derive(PartialEq)]
[INFO] [stdout] 23 | pub enum Document {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Rc<Document>`
[INFO] [stdout]   --> src/util.rs:79:3
[INFO] [stdout]    |
[INFO] [stdout] 79 | /         assert_eq!(kawaii::string("foo"),
[INFO] [stdout] 80 | |             Rc::new(Document::String("foo".into())));
[INFO] [stdout]    | |                                                    ^
[INFO] [stdout]    | |                                                    |
[INFO] [stdout]    | |____________________________________________________Rc<Document>
[INFO] [stdout]    |                                                      Rc<Document>
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `PartialEq` might be missing for `Document`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Document {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ must implement `PartialEq`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `Document` with `#[derive(PartialEq)]`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 + #[derive(PartialEq)]
[INFO] [stdout] 23 | pub enum Document {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `&Rc<Document>: Kawaii` is not satisfied
[INFO] [stdout]   --> src/util.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         assert_eq!(kawaii::concat(&[kawaii::string("foo"), kawaii::string("bar")]),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Kawaii` is not implemented for `&Rc<Document>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `util::concat`
[INFO] [stdout]   --> src/util.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn concat<K: Kawaii, I: IntoIterator<Item = K>>(values: I) -> Rc<Document> {
[INFO] [stdout]    |                  ^^^^^^ required by this bound in `concat`
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 85 |         assert_eq!(&kawaii::concat(&[kawaii::string("foo"), kawaii::string("bar")]),
[INFO] [stdout]    |                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Rc<Document>`
[INFO] [stdout]   --> src/util.rs:85:3
[INFO] [stdout]    |
[INFO] [stdout] 85 | /         assert_eq!(kawaii::concat(&[kawaii::string("foo"), kawaii::string("bar")]),
[INFO] [stdout] 86 | |             Rc::new(Document::Cons {
[INFO] [stdout] 87 | |                 left: Rc::new(Document::String("foo".into())),
[INFO] [stdout] 88 | |                 right: Rc::new(Document::String("bar".into())),
[INFO] [stdout] 89 | |             }));
[INFO] [stdout]    | |               ^
[INFO] [stdout]    | |               |
[INFO] [stdout]    | |_______________Rc<Document>
[INFO] [stdout]    |                 Rc<Document>
[INFO] [stdout]    |
[INFO] [stdout] note: an implementation of `PartialEq` might be missing for `Document`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Document {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ must implement `PartialEq`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `Document` with `#[derive(PartialEq)]`
[INFO] [stdout]   --> src/document.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 + #[derive(PartialEq)]
[INFO] [stdout] 23 | pub enum Document {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/fmt.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/fmt.rs:61:36
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn indent(f: &mut fmt::Formatter, n: usize) -> fmt::Result {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0369.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kawaii` (lib test) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3d787c08b94cb35ecbbf7cd064b151ce9df2a362802ae1e6bd02994bcdc4bbd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d787c08b94cb35ecbbf7cd064b151ce9df2a362802ae1e6bd02994bcdc4bbd8", kill_on_drop: false }`
[INFO] [stdout] 3d787c08b94cb35ecbbf7cd064b151ce9df2a362802ae1e6bd02994bcdc4bbd8
