[INFO] cloning repository https://github.com/rfrm/first-assignment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rfrm/first-assignment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfrm%2Ffirst-assignment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfrm%2Ffirst-assignment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a36bbd94584785c3f2acf0ba63e6f3c15f52ae7d
[INFO] testing rfrm/first-assignment against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfrm%2Ffirst-assignment" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rfrm/first-assignment
[INFO] finished tweaking git repo https://github.com/rfrm/first-assignment
[INFO] tweaked toml for git repo https://github.com/rfrm/first-assignment written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rfrm/first-assignment on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rfrm/first-assignment 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "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] testing rfrm/first-assignment against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfrm%2Ffirst-assignment" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rfrm/first-assignment
[INFO] finished tweaking git repo https://github.com/rfrm/first-assignment
[INFO] tweaked toml for git repo https://github.com/rfrm/first-assignment written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rfrm/first-assignment on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rfrm/first-assignment 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13767f36f0a26417914affba143845263a9f2999ab0a8b755bd7ab73e8b5511e
[INFO] running `Command { std: "docker" "start" "-a" "13767f36f0a26417914affba143845263a9f2999ab0a8b755bd7ab73e8b5511e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13767f36f0a26417914affba143845263a9f2999ab0a8b755bd7ab73e8b5511e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13767f36f0a26417914affba143845263a9f2999ab0a8b755bd7ab73e8b5511e", kill_on_drop: false }`
[INFO] [stdout] 13767f36f0a26417914affba143845263a9f2999ab0a8b755bd7ab73e8b5511e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da4087545cd50a5e992ba96ab2c0292906414f9d49f300110fe552ecd15caa6f
[INFO] running `Command { std: "docker" "start" "-a" "da4087545cd50a5e992ba96ab2c0292906414f9d49f300110fe552ecd15caa6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling first-assignment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `author` is never read
[INFO] [stdout]   --> src/library.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Book<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 11 |     pub title: &'a str,
[INFO] [stdout] 12 |     pub author: &'a str,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "da4087545cd50a5e992ba96ab2c0292906414f9d49f300110fe552ecd15caa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da4087545cd50a5e992ba96ab2c0292906414f9d49f300110fe552ecd15caa6f", kill_on_drop: false }`
[INFO] [stdout] da4087545cd50a5e992ba96ab2c0292906414f9d49f300110fe552ecd15caa6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50158611b77195c59f551ef4cb997f48309829551a24ebc39cf85f00f05c3a0b
[INFO] running `Command { std: "docker" "start" "-a" "50158611b77195c59f551ef4cb997f48309829551a24ebc39cf85f00f05c3a0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling first-assignment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `author` is never read
[INFO] [stdout]   --> src/library.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Book<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 11 |     pub title: &'a str,
[INFO] [stdout] 12 |     pub author: &'a str,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "50158611b77195c59f551ef4cb997f48309829551a24ebc39cf85f00f05c3a0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50158611b77195c59f551ef4cb997f48309829551a24ebc39cf85f00f05c3a0b", kill_on_drop: false }`
[INFO] [stdout] 50158611b77195c59f551ef4cb997f48309829551a24ebc39cf85f00f05c3a0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1f0e82cd0621666806daa1066edc19a76cc5ae608fe75a2d43e4f680fd13ac09
[INFO] running `Command { std: "docker" "start" "-a" "1f0e82cd0621666806daa1066edc19a76cc5ae608fe75a2d43e4f680fd13ac09", kill_on_drop: false }`
[INFO] [stderr] warning: field `author` is never read
[INFO] [stderr]   --> src/library.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Book<'a> {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] 11 |     pub title: &'a str,
[INFO] [stderr] 12 |     pub author: &'a str,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `first-assignment` (bin "first-assignment" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/first_assignment-c1075f1d7433d040)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1f0e82cd0621666806daa1066edc19a76cc5ae608fe75a2d43e4f680fd13ac09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0e82cd0621666806daa1066edc19a76cc5ae608fe75a2d43e4f680fd13ac09", kill_on_drop: false }`
[INFO] [stdout] 1f0e82cd0621666806daa1066edc19a76cc5ae608fe75a2d43e4f680fd13ac09