[INFO] cloning repository https://github.com/mashiro-no-rabo/maelstrom-impl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mashiro-no-rabo/maelstrom-impl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmashiro-no-rabo%2Fmaelstrom-impl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmashiro-no-rabo%2Fmaelstrom-impl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 886114204c8d42f5a64af004f95c39e36dea8114
[INFO] building mashiro-no-rabo/maelstrom-impl against master#87788097b776f8e3662f76627944230684b671bd for pr-101591
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmashiro-no-rabo%2Fmaelstrom-impl" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mashiro-no-rabo/maelstrom-impl on toolchain 87788097b776f8e3662f76627944230684b671bd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mashiro-no-rabo/maelstrom-impl
[INFO] finished tweaking git repo https://github.com/mashiro-no-rabo/maelstrom-impl
[INFO] tweaked toml for git repo https://github.com/mashiro-no-rabo/maelstrom-impl written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mashiro-no-rabo/maelstrom-impl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timeout-readwrite v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b9ab61da61ab98dbd60bb6961bb9b5edf907ece9ae7d886778e410e9291449c
[INFO] running `Command { std: "docker" "start" "-a" "8b9ab61da61ab98dbd60bb6961bb9b5edf907ece9ae7d886778e410e9291449c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b9ab61da61ab98dbd60bb6961bb9b5edf907ece9ae7d886778e410e9291449c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9ab61da61ab98dbd60bb6961bb9b5edf907ece9ae7d886778e410e9291449c", kill_on_drop: false }`
[INFO] [stdout] 8b9ab61da61ab98dbd60bb6961bb9b5edf907ece9ae7d886778e410e9291449c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 476de1a514166cc5274394b4522cc6dfc0e7d0846d1d07a2740d42d23198db5a
[INFO] running `Command { std: "docker" "start" "-a" "476de1a514166cc5274394b4522cc6dfc0e7d0846d1d07a2740d42d23198db5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.39
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling timeout-readwrite v0.3.1
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.91s
[INFO] running `Command { std: "docker" "inspect" "476de1a514166cc5274394b4522cc6dfc0e7d0846d1d07a2740d42d23198db5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476de1a514166cc5274394b4522cc6dfc0e7d0846d1d07a2740d42d23198db5a", kill_on_drop: false }`
[INFO] [stdout] 476de1a514166cc5274394b4522cc6dfc0e7d0846d1d07a2740d42d23198db5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71a96f23e052bc7100966c9ed144d5a9d6bee2c9dafc5cf5f26f4bb29b1cb896
[INFO] running `Command { std: "docker" "start" "-a" "71a96f23e052bc7100966c9ed144d5a9d6bee2c9dafc5cf5f26f4bb29b1cb896", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maelstrom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.27s
[INFO] running `Command { std: "docker" "inspect" "71a96f23e052bc7100966c9ed144d5a9d6bee2c9dafc5cf5f26f4bb29b1cb896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a96f23e052bc7100966c9ed144d5a9d6bee2c9dafc5cf5f26f4bb29b1cb896", kill_on_drop: false }`
[INFO] [stdout] 71a96f23e052bc7100966c9ed144d5a9d6bee2c9dafc5cf5f26f4bb29b1cb896