[INFO] cloning repository https://github.com/gerryajie/rustProgramming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gerryajie/rustProgramming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerryajie%2FrustProgramming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerryajie%2FrustProgramming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed3a9a5e0af29592d431bc1ca4eb417c8a445c56
[INFO] checking gerryajie/rustProgramming against master#f4d794ea0b845413344621d89f6c945062748485 for pr-119369
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerryajie%2FrustProgramming" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gerryajie/rustProgramming on toolchain f4d794ea0b845413344621d89f6c945062748485
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gerryajie/rustProgramming
[INFO] finished tweaking git repo https://github.com/gerryajie/rustProgramming
[INFO] tweaked toml for git repo https://github.com/gerryajie/rustProgramming written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gerryajie/rustProgramming 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" "+f4d794ea0b845413344621d89f6c945062748485" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking gerryajie/rustProgramming against try#3832a95f57d4260fb5641e183906f49b4e5c6bdd for pr-119369
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgerryajie%2FrustProgramming" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gerryajie/rustProgramming on toolchain 3832a95f57d4260fb5641e183906f49b4e5c6bdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gerryajie/rustProgramming
[INFO] finished tweaking git repo https://github.com/gerryajie/rustProgramming
[INFO] tweaked toml for git repo https://github.com/gerryajie/rustProgramming written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gerryajie/rustProgramming 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" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cee633a1115328aaecb31b393eef2350eca46c66c7e02963f3300dd501a52e3
[INFO] running `Command { std: "docker" "start" "-a" "6cee633a1115328aaecb31b393eef2350eca46c66c7e02963f3300dd501a52e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cee633a1115328aaecb31b393eef2350eca46c66c7e02963f3300dd501a52e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cee633a1115328aaecb31b393eef2350eca46c66c7e02963f3300dd501a52e3", kill_on_drop: false }`
[INFO] [stdout] 6cee633a1115328aaecb31b393eef2350eca46c66c7e02963f3300dd501a52e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9c380a8f402c84fd6685b7c82be3bfe26b9d36f2d3c6a55f51d1e8be1019bb3
[INFO] running `Command { std: "docker" "start" "-a" "b9c380a8f402c84fd6685b7c82be3bfe26b9d36f2d3c6a55f51d1e8be1019bb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "b9c380a8f402c84fd6685b7c82be3bfe26b9d36f2d3c6a55f51d1e8be1019bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c380a8f402c84fd6685b7c82be3bfe26b9d36f2d3c6a55f51d1e8be1019bb3", kill_on_drop: false }`
[INFO] [stdout] b9c380a8f402c84fd6685b7c82be3bfe26b9d36f2d3c6a55f51d1e8be1019bb3