[INFO] fetching crate stak-minifier 0.1.14...
[INFO] checking stak-minifier-0.1.14 against master#f25e92bd42b14e45440c0a30a4ed751ea502f430 for pr-127481
[INFO] extracting crate stak-minifier 0.1.14 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate stak-minifier 0.1.14 on toolchain f25e92bd42b14e45440c0a30a4ed751ea502f430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stak-minifier 0.1.14
[INFO] finished tweaking crates.io crate stak-minifier 0.1.14
[INFO] tweaked toml for crates.io crate stak-minifier 0.1.14 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding stak-file v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding stak-primitive v0.2.41 (latest: v0.4.0)
[INFO] [stderr]       Adding stak-primitive v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stak-vm v0.4.11
[INFO] [stderr]   Downloaded stak-macro v0.1.42
[INFO] [stderr]   Downloaded stak-code v0.2.40
[INFO] [stderr]   Downloaded stak-device v0.2.41
[INFO] [stderr]   Downloaded stak-compiler v0.1.45
[INFO] [stderr]   Downloaded stak-configuration v0.1.37
[INFO] [stderr]   Downloaded stak-file v0.2.0
[INFO] [stderr]   Downloaded stak-primitive v0.3.0
[INFO] [stderr]   Downloaded stak-macro-util v0.1.18
[INFO] [stderr]   Downloaded stak-primitive v0.2.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 387545bf4d223ade4cd34e5adf6bba1f1427e2efa1164cd9e3f7b08f47193f6d
[INFO] running `Command { std: "docker" "start" "-a" "387545bf4d223ade4cd34e5adf6bba1f1427e2efa1164cd9e3f7b08f47193f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "387545bf4d223ade4cd34e5adf6bba1f1427e2efa1164cd9e3f7b08f47193f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "387545bf4d223ade4cd34e5adf6bba1f1427e2efa1164cd9e3f7b08f47193f6d", kill_on_drop: false }`
[INFO] [stdout] 387545bf4d223ade4cd34e5adf6bba1f1427e2efa1164cd9e3f7b08f47193f6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a62657f3bcd57f94ea47be7c7798ed93d7fe577de54e874cf249e40a87f8e20c
[INFO] running `Command { std: "docker" "start" "-a" "a62657f3bcd57f94ea47be7c7798ed93d7fe577de54e874cf249e40a87f8e20c", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stak-code v0.2.40
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling stak-compiler v0.1.45
[INFO] [stderr]    Compiling stak-file v0.2.0
[INFO] [stderr]    Compiling stak-device v0.2.41
[INFO] [stderr]    Compiling syn v2.0.70
[INFO] [stderr]    Compiling stak-configuration v0.1.37
[INFO] [stderr]    Compiling stak-vm v0.4.11
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking stak-primitive v0.2.41
[INFO] [stderr]    Compiling stak-primitive v0.3.0
[INFO] [stderr]    Compiling stak-macro-util v0.1.18
[INFO] [stderr]    Compiling stak-macro v0.1.42
[INFO] [stderr]     Checking stak-minifier v0.1.14 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "a62657f3bcd57f94ea47be7c7798ed93d7fe577de54e874cf249e40a87f8e20c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a62657f3bcd57f94ea47be7c7798ed93d7fe577de54e874cf249e40a87f8e20c", kill_on_drop: false }`
[INFO] [stdout] a62657f3bcd57f94ea47be7c7798ed93d7fe577de54e874cf249e40a87f8e20c