[INFO] fetching crate maelstrom-worker-child 0.14.0...
[INFO] checking maelstrom-worker-child-0.14.0 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate maelstrom-worker-child 0.14.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate maelstrom-worker-child 0.14.0
[INFO] finished tweaking crates.io crate maelstrom-worker-child 0.14.0
[INFO] tweaked toml for crates.io crate maelstrom-worker-child 0.14.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate maelstrom-worker-child 0.14.0 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate maelstrom-worker-child 0.14.0 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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30722f0a6ccb57f245f796743f03295572f76f58301e1fc621fde5c00681c739
[INFO] running `Command { std: "docker" "start" "-a" "30722f0a6ccb57f245f796743f03295572f76f58301e1fc621fde5c00681c739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30722f0a6ccb57f245f796743f03295572f76f58301e1fc621fde5c00681c739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30722f0a6ccb57f245f796743f03295572f76f58301e1fc621fde5c00681c739", kill_on_drop: false }`
[INFO] [stdout] 30722f0a6ccb57f245f796743f03295572f76f58301e1fc621fde5c00681c739
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2c8057d50ffeea72ccadf963b5f46eb3cd3bc45119cd276bb4dfc29e8bcdcc6
[INFO] running `Command { std: "docker" "start" "-a" "b2c8057d50ffeea72ccadf963b5f46eb3cd3bc45119cd276bb4dfc29e8bcdcc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking maelstrom-linux v0.14.0
[INFO] [stderr]     Checking maelstrom-worker-child v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.84s
[INFO] running `Command { std: "docker" "inspect" "b2c8057d50ffeea72ccadf963b5f46eb3cd3bc45119cd276bb4dfc29e8bcdcc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c8057d50ffeea72ccadf963b5f46eb3cd3bc45119cd276bb4dfc29e8bcdcc6", kill_on_drop: false }`
[INFO] [stdout] b2c8057d50ffeea72ccadf963b5f46eb3cd3bc45119cd276bb4dfc29e8bcdcc6