[INFO] cloning repository https://github.com/tkeiyama/rust-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkeiyama/rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkeiyama%2Frust-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkeiyama%2Frust-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73b3452920c9ae792e748db2e4c13c707f7ae3e3
[INFO] checking tkeiyama/rust-sandbox against master#43d9f3859e0204e764161ee085a360274b5f3e9a for pr-97346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkeiyama%2Frust-sandbox" "/workspace/builds/worker-37/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-37/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tkeiyama/rust-sandbox on toolchain 43d9f3859e0204e764161ee085a360274b5f3e9a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tkeiyama/rust-sandbox
[INFO] finished tweaking git repo https://github.com/tkeiyama/rust-sandbox
[INFO] tweaked toml for git repo https://github.com/tkeiyama/rust-sandbox written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate git repo https://github.com/tkeiyama/rust-sandbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d78c3b7c42e412f7ea23a2ba55dbebc41ba101634d85efc478ef26a1d9da16f
[INFO] running `Command { std: "docker" "start" "-a" "0d78c3b7c42e412f7ea23a2ba55dbebc41ba101634d85efc478ef26a1d9da16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d78c3b7c42e412f7ea23a2ba55dbebc41ba101634d85efc478ef26a1d9da16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d78c3b7c42e412f7ea23a2ba55dbebc41ba101634d85efc478ef26a1d9da16f", kill_on_drop: false }`
[INFO] [stdout] 0d78c3b7c42e412f7ea23a2ba55dbebc41ba101634d85efc478ef26a1d9da16f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b06998c2059300216f8fd2ab062ae319fea461200ae0ce7d40145863e678030
[INFO] running `Command { std: "docker" "start" "-a" "6b06998c2059300216f8fd2ab062ae319fea461200ae0ce7d40145863e678030", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/cli/main.rs:84:7
[INFO] [stdout]    |
[INFO] [stdout] 84 |       final_command.wait();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "6b06998c2059300216f8fd2ab062ae319fea461200ae0ce7d40145863e678030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b06998c2059300216f8fd2ab062ae319fea461200ae0ce7d40145863e678030", kill_on_drop: false }`
[INFO] [stdout] 6b06998c2059300216f8fd2ab062ae319fea461200ae0ce7d40145863e678030