[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] 4e2c8155946cd88b2cbc88a7266c0599cafa6376
[INFO] checking Waigo01/math_utils_lib against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaigo01%2Fmath_utils_lib" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Waigo01/math_utils_lib on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-1-tc2/source/Cargo.toml
[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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b563325d9d94b83c55244062e148fba83451070385121759606f6197925e18
[INFO] running `Command { std: "docker" "start" "-a" "a4b563325d9d94b83c55244062e148fba83451070385121759606f6197925e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b563325d9d94b83c55244062e148fba83451070385121759606f6197925e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b563325d9d94b83c55244062e148fba83451070385121759606f6197925e18", kill_on_drop: false }`
[INFO] [stdout] a4b563325d9d94b83c55244062e148fba83451070385121759606f6197925e18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae968291875d813f9c0bd2ef10203c0119aa21f94755e7bb9decc5b8b3f61e4
[INFO] running `Command { std: "docker" "start" "-a" "bae968291875d813f9c0bd2ef10203c0119aa21f94755e7bb9decc5b8b3f61e4", kill_on_drop: false }`
[INFO] [stderr]     Checking math_utils_lib v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this conversion is useless `EvalError` to `EvalError`
[INFO] [stdout]    --> src/roots.rs:241:24
[INFO] [stdout]     |
[INFO] [stdout] 241 |             return Err(EvalError::UnderdeterminedSystem.into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `EvalError` to `EvalError`
[INFO] [stdout]    --> src/roots.rs:318:49
[INFO] [stdout]     |
[INFO] [stdout] 318 | ...                   _ => return Err(e.into())
[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] [stdout] error: this conversion is useless `EvalError` to `EvalError`
[INFO] [stdout]    --> src/roots.rs:241:24
[INFO] [stdout]     |
[INFO] [stdout] 241 |             return Err(EvalError::UnderdeterminedSystem.into());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `EvalError` to `EvalError`
[INFO] [stdout]    --> src/roots.rs:318:49
[INFO] [stdout]     |
[INFO] [stdout] 318 | ...                   _ => return Err(e.into())
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math_utils_lib` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bae968291875d813f9c0bd2ef10203c0119aa21f94755e7bb9decc5b8b3f61e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae968291875d813f9c0bd2ef10203c0119aa21f94755e7bb9decc5b8b3f61e4", kill_on_drop: false }`
[INFO] [stdout] bae968291875d813f9c0bd2ef10203c0119aa21f94755e7bb9decc5b8b3f61e4