[INFO] cloning repository https://github.com/mp-singh/language_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mp-singh/language_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmp-singh%2Flanguage_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmp-singh%2Flanguage_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a186395ae5b38087da9921a6f49c07b24f1f739
[INFO] checking mp-singh/language_rust against master#0fb279be1d96464c69209053ef0f97ad63088cda for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmp-singh%2Flanguage_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mp-singh/language_rust
[INFO] finished tweaking git repo https://github.com/mp-singh/language_rust
[INFO] tweaked toml for git repo https://github.com/mp-singh/language_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mp-singh/language_rust on toolchain 0fb279be1d96464c69209053ef0f97ad63088cda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mp-singh/language_rust 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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tonic-reflection v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f35b668de5940d9bedd08312dab5ab2b8e4a0cf9b9f6e44003badd4e41b300c
[INFO] running `Command { std: "docker" "start" "-a" "1f35b668de5940d9bedd08312dab5ab2b8e4a0cf9b9f6e44003badd4e41b300c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f35b668de5940d9bedd08312dab5ab2b8e4a0cf9b9f6e44003badd4e41b300c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f35b668de5940d9bedd08312dab5ab2b8e4a0cf9b9f6e44003badd4e41b300c", kill_on_drop: false }`
[INFO] [stdout] 1f35b668de5940d9bedd08312dab5ab2b8e4a0cf9b9f6e44003badd4e41b300c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ac3259cda7b93111d9898fcaef179094558c2bfe67b58ef1adc102be3246818
[INFO] running `Command { std: "docker" "start" "-a" "4ac3259cda7b93111d9898fcaef179094558c2bfe67b58ef1adc102be3246818", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "4ac3259cda7b93111d9898fcaef179094558c2bfe67b58ef1adc102be3246818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac3259cda7b93111d9898fcaef179094558c2bfe67b58ef1adc102be3246818", kill_on_drop: false }`
[INFO] [stdout] 4ac3259cda7b93111d9898fcaef179094558c2bfe67b58ef1adc102be3246818