[INFO] cloning repository https://github.com/HugoPhi/myrustlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HugoPhi/myrustlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoPhi%2Fmyrustlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoPhi%2Fmyrustlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b545fa933e7f6a0faf8941f04fd34c5fd16efce3
[INFO] checking HugoPhi/myrustlib against master#f25e92bd42b14e45440c0a30a4ed751ea502f430 for pr-127481
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoPhi%2Fmyrustlib" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HugoPhi/myrustlib 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 git repo https://github.com/HugoPhi/myrustlib
[INFO] finished tweaking git repo https://github.com/HugoPhi/myrustlib
[INFO] tweaked toml for git repo https://github.com/HugoPhi/myrustlib written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HugoPhi/myrustlib 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" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "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 HugoPhi/myrustlib against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoPhi%2Fmyrustlib" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HugoPhi/myrustlib on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HugoPhi/myrustlib
[INFO] finished tweaking git repo https://github.com/HugoPhi/myrustlib
[INFO] tweaked toml for git repo https://github.com/HugoPhi/myrustlib written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/HugoPhi/myrustlib 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" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff322669991f47ec080c5e2c2c76b21a661072dd0f16ca88b8b789fef800a11e
[INFO] running `Command { std: "docker" "start" "-a" "ff322669991f47ec080c5e2c2c76b21a661072dd0f16ca88b8b789fef800a11e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff322669991f47ec080c5e2c2c76b21a661072dd0f16ca88b8b789fef800a11e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff322669991f47ec080c5e2c2c76b21a661072dd0f16ca88b8b789fef800a11e", kill_on_drop: false }`
[INFO] [stdout] ff322669991f47ec080c5e2c2c76b21a661072dd0f16ca88b8b789fef800a11e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 972fa8e039a4afbd3e9dffa6c3b11f93247d2b2d7bbf50eb952b67eb0837025e
[INFO] running `Command { std: "docker" "start" "-a" "972fa8e039a4afbd3e9dffa6c3b11f93247d2b2d7bbf50eb952b67eb0837025e", kill_on_drop: false }`
[INFO] [stderr]     Checking mylib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bubble_sort::bubble_sort`
[INFO] [stdout]   --> src/utils/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use bubble_sort::bubble_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bubble_sort::bubble_sort`
[INFO] [stdout]   --> src/utils/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use bubble_sort::bubble_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `insertion_sort::insertion_sort`
[INFO] [stdout]   --> src/utils/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use insertion_sort::insertion_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quick_sort::quick_sort`
[INFO] [stdout]   --> src/utils/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub use quick_sort::quick_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `insertion_sort::insertion_sort`
[INFO] [stdout]   --> src/utils/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use insertion_sort::insertion_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `merge_sort::merge_sort`
[INFO] [stdout]   --> src/utils/mod.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use merge_sort::merge_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quick_sort::quick_sort`
[INFO] [stdout]   --> src/utils/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub use quick_sort::quick_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `merge_sort::merge_sort`
[INFO] [stdout]   --> src/utils/mod.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use merge_sort::merge_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "972fa8e039a4afbd3e9dffa6c3b11f93247d2b2d7bbf50eb952b67eb0837025e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972fa8e039a4afbd3e9dffa6c3b11f93247d2b2d7bbf50eb952b67eb0837025e", kill_on_drop: false }`
[INFO] [stdout] 972fa8e039a4afbd3e9dffa6c3b11f93247d2b2d7bbf50eb952b67eb0837025e