[INFO] fetching crate ua 0.1.2...
[INFO] checking ua-0.1.2 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate ua 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ua 0.1.2
[INFO] finished tweaking crates.io crate ua 0.1.2
[INFO] tweaked toml for crates.io crate ua 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ua 0.1.2 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ua 0.1.2 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dbf1f5fb31b78392936a5504e27268e243e885cabe503264d080b691623ea73
[INFO] running `Command { std: "docker" "start" "-a" "5dbf1f5fb31b78392936a5504e27268e243e885cabe503264d080b691623ea73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dbf1f5fb31b78392936a5504e27268e243e885cabe503264d080b691623ea73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbf1f5fb31b78392936a5504e27268e243e885cabe503264d080b691623ea73", kill_on_drop: false }`
[INFO] [stdout] 5dbf1f5fb31b78392936a5504e27268e243e885cabe503264d080b691623ea73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fba2cd18c63ad40c0ff65a6af1212c3fd8b8ecb06c00fd7be18e9369aed0b4a
[INFO] running `Command { std: "docker" "start" "-a" "1fba2cd18c63ad40c0ff65a6af1212c3fd8b8ecb06c00fd7be18e9369aed0b4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking ua v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> source/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | use std::path::Path;
[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: `std::path::Path`
[INFO] [stdout]   --> source/lib.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> source/lib.rs:652:9
[INFO] [stdout]     |
[INFO] [stdout] 652 |         None
[INFO] [stdout]     |         ^^^^ expected `()`, found `Option<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<_>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 652 |         return None;
[INFO] [stdout]     |         ++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> source/lib.rs:652:9
[INFO] [stdout]     |
[INFO] [stdout] 652 |         None
[INFO] [stdout]     |         ^^^^ expected `()`, found `Option<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<_>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 652 |         return None;
[INFO] [stdout]     |         ++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ua` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ua` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1fba2cd18c63ad40c0ff65a6af1212c3fd8b8ecb06c00fd7be18e9369aed0b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fba2cd18c63ad40c0ff65a6af1212c3fd8b8ecb06c00fd7be18e9369aed0b4a", kill_on_drop: false }`
[INFO] [stdout] 1fba2cd18c63ad40c0ff65a6af1212c3fd8b8ecb06c00fd7be18e9369aed0b4a