[INFO] fetching crate proxy-enum 0.3.1...
[INFO] testing proxy-enum-0.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate proxy-enum 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate proxy-enum 0.3.1
[INFO] finished tweaking crates.io crate proxy-enum 0.3.1
[INFO] tweaked toml for crates.io crate proxy-enum 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proxy-enum 0.3.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "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 syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc46941b913f71cea29d3aaad5b8ac4d8a3018de548d82a278ea26918e818f1c
[INFO] running `Command { std: "docker" "start" "-a" "fc46941b913f71cea29d3aaad5b8ac4d8a3018de548d82a278ea26918e818f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc46941b913f71cea29d3aaad5b8ac4d8a3018de548d82a278ea26918e818f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc46941b913f71cea29d3aaad5b8ac4d8a3018de548d82a278ea26918e818f1c", kill_on_drop: false }`
[INFO] [stdout] fc46941b913f71cea29d3aaad5b8ac4d8a3018de548d82a278ea26918e818f1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9a938b2aa0114bbe52a3198f7da30d67f4fd8f147855a3ab621a6f8ad5474f7
[INFO] running `Command { std: "docker" "start" "-a" "b9a938b2aa0114bbe52a3198f7da30d67f4fd8f147855a3ab621a6f8ad5474f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proxy-enum v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:275:20
[INFO] [stdout]     |
[INFO] [stdout] 275 |         .for_each(|mut method| {
[INFO] [stdout]     |                    ----^^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "b9a938b2aa0114bbe52a3198f7da30d67f4fd8f147855a3ab621a6f8ad5474f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a938b2aa0114bbe52a3198f7da30d67f4fd8f147855a3ab621a6f8ad5474f7", kill_on_drop: false }`
[INFO] [stdout] b9a938b2aa0114bbe52a3198f7da30d67f4fd8f147855a3ab621a6f8ad5474f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ee1197e3a78c6fccd208d74922f1bf75dd8e092412bbc6ba6c927e1c24f255a
[INFO] running `Command { std: "docker" "start" "-a" "9ee1197e3a78c6fccd208d74922f1bf75dd8e092412bbc6ba6c927e1c24f255a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proxy-enum v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:275:20
[INFO] [stdout]     |
[INFO] [stdout] 275 |         .for_each(|mut method| {
[INFO] [stdout]     |                    ----^^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:275:20
[INFO] [stdout]     |
[INFO] [stdout] 275 |         .for_each(|mut method| {
[INFO] [stdout]     |                    ----^^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "9ee1197e3a78c6fccd208d74922f1bf75dd8e092412bbc6ba6c927e1c24f255a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee1197e3a78c6fccd208d74922f1bf75dd8e092412bbc6ba6c927e1c24f255a", kill_on_drop: false }`
[INFO] [stdout] 9ee1197e3a78c6fccd208d74922f1bf75dd8e092412bbc6ba6c927e1c24f255a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc0917f3596ff6f3ae23bfe129e702b504126131cd94f5fd11c9ff0a376e9021
[INFO] running `Command { std: "docker" "start" "-a" "dc0917f3596ff6f3ae23bfe129e702b504126131cd94f5fd11c9ff0a376e9021", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |         .for_each(|mut method| {
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proxy-enum` (lib) generated 1 warning (run `cargo fix --lib -p proxy-enum` to apply 1 suggestion)
[INFO] [stderr] warning: `proxy-enum` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proxy_enum-28256c235260c0cd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proxy_enum
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 19) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 114) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 55) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 39) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 94) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 19) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Cat(Cat),
[INFO] [stdout]    |         ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Lion(Lion),
[INFO] [stdout]    |          ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Mouse(Mouse)
[INFO] [stdout]    |           ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `random_animal` in this scope
[INFO] [stdout]   --> src/lib.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | match random_animal() {
[INFO] [stdout]    |       ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Animal` in this scope
[INFO] [stdout]  --> src/lib.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | let animal: &dyn Animal = random_animal();
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `random_animal` in this scope
[INFO] [stdout]  --> src/lib.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 | let animal: &dyn Animal = random_animal();
[INFO] [stdout]   |                           ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 114) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]    --> src/lib.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         Cat(Cat),
[INFO] [stdout]     |             ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]    --> src/lib.rs:120:14
[INFO] [stdout]     |
[INFO] [stdout] 120 |         Lion(Lion),
[INFO] [stdout]     |              ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]    --> src/lib.rs:121:15
[INFO] [stdout]     |
[INFO] [stdout] 121 |         Mouse(Mouse)
[INFO] [stdout]     |               ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 55) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         Cat(Cat),
[INFO] [stdout]    |             ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Lion(Lion),
[INFO] [stdout]    |              ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |         Mouse(Mouse)
[INFO] [stdout]    |               ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:73:15
[INFO] [stdout]    |
[INFO] [stdout] 73 |     impl From<Cat> for Animal {
[INFO] [stdout]    |               ^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 73 |     impl<Cat> From<Cat> for Animal {
[INFO] [stdout]    |         +++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |         fn from(from: Cat) -> Self {
[INFO] [stdout]    |                       ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     impl From<Lion> for Animal {
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 79 |     impl<Lion> From<Lion> for Animal {
[INFO] [stdout]    |         ++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |         fn from(from: Lion) -> Self {
[INFO] [stdout]    |                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:85:15
[INFO] [stdout]    |
[INFO] [stdout] 85 |     impl From<Mouse> for Animal {
[INFO] [stdout]    |               ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 85 |     impl<Mouse> From<Mouse> for Animal {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:86:23
[INFO] [stdout]    |
[INFO] [stdout] 86 |         fn from(from: Mouse) -> Self {
[INFO] [stdout]    |                       ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 39) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Cat(Cat),
[INFO] [stdout]    |             ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Lion(Lion),
[INFO] [stdout]    |              ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:46:15
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Mouse(Mouse)
[INFO] [stdout]    |               ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Cat` in this scope
[INFO] [stdout]   --> src/lib.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Cat(Cat),
[INFO] [stdout]    |             ^^^ use of undeclared type `Cat`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Lion` in this scope
[INFO] [stdout]   --> src/lib.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Lion(Lion),
[INFO] [stdout]    |              ^^^^ use of undeclared type `Lion`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Mouse` in this scope
[INFO] [stdout]   --> src/lib.rs:46:15
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Mouse(Mouse)
[INFO] [stdout]    |               ^^^^^ use of undeclared type `Mouse`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 94) stdout ----
[INFO] [stdout] error[E0425]: cannot find type `Cat` in this scope
[INFO] [stdout]    --> src/lib.rs:99:13
[INFO] [stdout]     |
[INFO] [stdout]  99 |         Cat(Cat),
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     trait Eat {
[INFO] [stdout]     |     --------- similarly named trait `Eat` defined here
[INFO] [stdout]     |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout]  99 -         Cat(Cat),
[INFO] [stdout]  99 +         Cat(Eat),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Lion` in this scope
[INFO] [stdout]    --> src/lib.rs:100:14
[INFO] [stdout]     |
[INFO] [stdout] 100 |         Lion(Lion),
[INFO] [stdout]     |              ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Mouse` in this scope
[INFO] [stdout]    --> src/lib.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |         Mouse(Mouse)
[INFO] [stdout]     |               ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 114)
[INFO] [stdout]     src/lib.rs - (line 19)
[INFO] [stdout]     src/lib.rs - (line 39)
[INFO] [stdout]     src/lib.rs - (line 55)
[INFO] [stdout]     src/lib.rs - (line 8)
[INFO] [stdout]     src/lib.rs - (line 94)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "dc0917f3596ff6f3ae23bfe129e702b504126131cd94f5fd11c9ff0a376e9021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0917f3596ff6f3ae23bfe129e702b504126131cd94f5fd11c9ff0a376e9021", kill_on_drop: false }`
[INFO] [stdout] dc0917f3596ff6f3ae23bfe129e702b504126131cd94f5fd11c9ff0a376e9021
