[INFO] fetching crate trait-variant 0.1.2...
[INFO] checking trait-variant-0.1.2 against master#dc8fe1f81c6cf13c0987944c525b2aa81625b5d0 for pr-133502-4
[INFO] extracting crate trait-variant 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate trait-variant 0.1.2 on toolchain dc8fe1f81c6cf13c0987944c525b2aa81625b5d0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trait-variant 0.1.2
[INFO] finished tweaking crates.io crate trait-variant 0.1.2
[INFO] tweaked toml for crates.io crate trait-variant 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate trait-variant 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" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.70
[INFO] [stderr]   Downloaded libc v0.2.150
[INFO] [stderr]   Downloaded tokio v1.35.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dff33da29e49a37f9cd304c0d301e4e7a33768150fbcd42aef2c5e0e8056e37b
[INFO] running `Command { std: "docker" "start" "-a" "dff33da29e49a37f9cd304c0d301e4e7a33768150fbcd42aef2c5e0e8056e37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dff33da29e49a37f9cd304c0d301e4e7a33768150fbcd42aef2c5e0e8056e37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dff33da29e49a37f9cd304c0d301e4e7a33768150fbcd42aef2c5e0e8056e37b", kill_on_drop: false }`
[INFO] [stdout] dff33da29e49a37f9cd304c0d301e4e7a33768150fbcd42aef2c5e0e8056e37b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+dc8fe1f81c6cf13c0987944c525b2aa81625b5d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e54b36d236b45f7cf0c9553897ea9e3eda1ecbb9e4b0fddaadd30a5f6635710
[INFO] running `Command { std: "docker" "start" "-a" "3e54b36d236b45f7cf0c9553897ea9e3eda1ecbb9e4b0fddaadd30a5f6635710", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking tokio v1.35.0
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.39
[INFO] [stderr]     Checking trait-variant v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `Command { std: "docker" "inspect" "3e54b36d236b45f7cf0c9553897ea9e3eda1ecbb9e4b0fddaadd30a5f6635710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e54b36d236b45f7cf0c9553897ea9e3eda1ecbb9e4b0fddaadd30a5f6635710", kill_on_drop: false }`
[INFO] [stdout] 3e54b36d236b45f7cf0c9553897ea9e3eda1ecbb9e4b0fddaadd30a5f6635710