[INFO] fetching crate acom 0.0.1...
[INFO] checking acom-0.0.1 against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] extracting crate acom 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate acom 0.0.1
[INFO] finished tweaking crates.io crate acom 0.0.1
[INFO] tweaked toml for crates.io crate acom 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate acom 0.0.1 on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate acom 0.0.1 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" "+95813608313bff49cfc1afc393a946a3c085b772" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a2d098363da2449d02739d0cec9b827d80ecdeb909d095fd6ec43496a36781d
[INFO] running `Command { std: "docker" "start" "-a" "7a2d098363da2449d02739d0cec9b827d80ecdeb909d095fd6ec43496a36781d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a2d098363da2449d02739d0cec9b827d80ecdeb909d095fd6ec43496a36781d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2d098363da2449d02739d0cec9b827d80ecdeb909d095fd6ec43496a36781d", kill_on_drop: false }`
[INFO] [stdout] 7a2d098363da2449d02739d0cec9b827d80ecdeb909d095fd6ec43496a36781d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c240fdbfd51f33279ddfde8d398afe580006ba990cfc9a67515992b74a4c377
[INFO] running `Command { std: "docker" "start" "-a" "8c240fdbfd51f33279ddfde8d398afe580006ba990cfc9a67515992b74a4c377", kill_on_drop: false }`
[INFO] [stderr]     Checking acom v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "8c240fdbfd51f33279ddfde8d398afe580006ba990cfc9a67515992b74a4c377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c240fdbfd51f33279ddfde8d398afe580006ba990cfc9a67515992b74a4c377", kill_on_drop: false }`
[INFO] [stdout] 8c240fdbfd51f33279ddfde8d398afe580006ba990cfc9a67515992b74a4c377