[INFO] cloning repository https://github.com/Waigo01/math_utils_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Waigo01/math_utils_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaigo01%2Fmath_utils_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaigo01%2Fmath_utils_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25b2e58cdb079cffc0c8d2eaac350e0f08c23532
[INFO] checking Waigo01/math_utils_lib against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaigo01%2Fmath_utils_lib" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Waigo01/math_utils_lib
[INFO] finished tweaking git repo https://github.com/Waigo01/math_utils_lib
[INFO] tweaked toml for git repo https://github.com/Waigo01/math_utils_lib written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Waigo01/math_utils_lib on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Waigo01/math_utils_lib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322
[INFO] running `Command { std: "docker" "start" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.46
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]    Compiling mul_async_macro v0.1.0 (/opt/rustwide/workdir/async_macro)
[INFO] [stderr]     Checking math_utils_lib v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stdout] error: useless conversion to the same type: `EvalError`
[INFO] [stdout]    --> src/roots.rs:262:24
[INFO] [stdout]     |
[INFO] [stdout] 262 |             return Err(EvalError::UnderdeterminedSystem.into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 262 -             return Err(EvalError::UnderdeterminedSystem.into());
[INFO] [stdout] 262 +             return Err(EvalError::UnderdeterminedSystem);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 262 -             return Err(EvalError::UnderdeterminedSystem.into());
[INFO] [stdout] 262 +             return Err(<EvalError as Into<_>>::into(EvalError::UnderdeterminedSystem));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `EvalError`
[INFO] [stdout]    --> src/roots.rs:341:49
[INFO] [stdout]     |
[INFO] [stdout] 341 | ...                   _ => return Err(e.into())
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 341 -                                 _ => return Err(e.into())
[INFO] [stdout] 341 +                                 _ => return Err(e)
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 341 -                                 _ => return Err(e.into())
[INFO] [stdout] 341 +                                 _ => return Err(<EvalError as Into<_>>::into(e))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math_utils_lib` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322", kill_on_drop: false }`
[INFO] [stdout] 99dc3414f9467ac3d0a6ac0bcfb98f8f9a74cf0a3fc9290b4bbf4e0c76945322