[INFO] fetching crate iref 2.0.3...
[INFO] checking iref-2.0.3 against 1.55.0 for beta-1.56-3
[INFO] extracting crate iref 2.0.3 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate iref 2.0.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iref 2.0.3
[INFO] finished tweaking crates.io crate iref 2.0.3
[INFO] tweaked toml for crates.io crate iref 2.0.3 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate crates.io crate iref 2.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b5f1be0cbea24abd666a12f575c3a4e3c0cf2f03bd298142807b01bb6c1743d
[INFO] running `Command { std: "docker" "start" "-a" "8b5f1be0cbea24abd666a12f575c3a4e3c0cf2f03bd298142807b01bb6c1743d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b5f1be0cbea24abd666a12f575c3a4e3c0cf2f03bd298142807b01bb6c1743d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5f1be0cbea24abd666a12f575c3a4e3c0cf2f03bd298142807b01bb6c1743d", kill_on_drop: false }`
[INFO] [stdout] 8b5f1be0cbea24abd666a12f575c3a4e3c0cf2f03bd298142807b01bb6c1743d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 684d927f70973c3b6c0e79e7c17ff93434eb8de9e132e4ef17df6d15bb773b38
[INFO] running `Command { std: "docker" "start" "-a" "684d927f70973c3b6c0e79e7c17ff93434eb8de9e132e4ef17df6d15bb773b38", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking pct-str v1.1.0
[INFO] [stderr]     Checking iref v2.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "684d927f70973c3b6c0e79e7c17ff93434eb8de9e132e4ef17df6d15bb773b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684d927f70973c3b6c0e79e7c17ff93434eb8de9e132e4ef17df6d15bb773b38", kill_on_drop: false }`
[INFO] [stdout] 684d927f70973c3b6c0e79e7c17ff93434eb8de9e132e4ef17df6d15bb773b38
