[INFO] cloning repository https://github.com/cxnkk/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cxnkk/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxnkk%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxnkk%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a270b1d874316e314370ce665c9d49ce83102171
[INFO] checking cxnkk/rust-playground against try#579169d0e78824dc60934e5eb74cd3841f2b33e8 for pr-149328
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxnkk%2Frust-playground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cxnkk/rust-playground
[INFO] finished tweaking git repo https://github.com/cxnkk/rust-playground
[INFO] tweaked toml for git repo https://github.com/cxnkk/rust-playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cxnkk/rust-playground on toolchain 579169d0e78824dc60934e5eb74cd3841f2b33e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cxnkk/rust-playground 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" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking cxnkk/rust-playground against try#579169d0e78824dc60934e5eb74cd3841f2b33e8 for pr-149328
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxnkk%2Frust-playground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cxnkk/rust-playground
[INFO] finished tweaking git repo https://github.com/cxnkk/rust-playground
[INFO] tweaked toml for git repo https://github.com/cxnkk/rust-playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cxnkk/rust-playground on toolchain 579169d0e78824dc60934e5eb74cd3841f2b33e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cxnkk/rust-playground 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" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df2704b0c01399423a434b4330c25cfd42b99e44194e8bf8a7e4ee985fc81b89
[INFO] running `Command { std: "docker" "start" "-a" "df2704b0c01399423a434b4330c25cfd42b99e44194e8bf8a7e4ee985fc81b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df2704b0c01399423a434b4330c25cfd42b99e44194e8bf8a7e4ee985fc81b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df2704b0c01399423a434b4330c25cfd42b99e44194e8bf8a7e4ee985fc81b89", kill_on_drop: false }`
[INFO] [stdout] df2704b0c01399423a434b4330c25cfd42b99e44194e8bf8a7e4ee985fc81b89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73b40b4385e8883682c6822b405caaf2636a14548f6c1c99cd739167c2bcef37
[INFO] running `Command { std: "docker" "start" "-a" "73b40b4385e8883682c6822b405caaf2636a14548f6c1c99cd739167c2bcef37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]     Checking getrandom v0.3.2
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "73b40b4385e8883682c6822b405caaf2636a14548f6c1c99cd739167c2bcef37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b40b4385e8883682c6822b405caaf2636a14548f6c1c99cd739167c2bcef37", kill_on_drop: false }`
[INFO] [stdout] 73b40b4385e8883682c6822b405caaf2636a14548f6c1c99cd739167c2bcef37