[INFO] cloning repository https://github.com/bitspace/match_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitspace/match_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitspace%2Fmatch_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitspace%2Fmatch_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96cfc21a5cbe7b87178211742622862224ed6197
[INFO] building bitspace/match_example against master#c52b9c10bfb5164015eb977ff498e0597ae63eb1 for pr-97025
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitspace%2Fmatch_example" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bitspace/match_example on toolchain c52b9c10bfb5164015eb977ff498e0597ae63eb1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bitspace/match_example
[INFO] finished tweaking git repo https://github.com/bitspace/match_example
[INFO] tweaked toml for git repo https://github.com/bitspace/match_example written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/bitspace/match_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31bab00162eb4133889d11561ec350855930736d2d1d5636767793c8f4254595
[INFO] running `Command { std: "docker" "start" "-a" "31bab00162eb4133889d11561ec350855930736d2d1d5636767793c8f4254595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31bab00162eb4133889d11561ec350855930736d2d1d5636767793c8f4254595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31bab00162eb4133889d11561ec350855930736d2d1d5636767793c8f4254595", kill_on_drop: false }`
[INFO] [stdout] 31bab00162eb4133889d11561ec350855930736d2d1d5636767793c8f4254595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d864716e097bcedfc77e01bd544559e13bd55d3832186931593a2fc03d3ac259
[INFO] running `Command { std: "docker" "start" "-a" "d864716e097bcedfc77e01bd544559e13bd55d3832186931593a2fc03d3ac259", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling match_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `six`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let six = plus_one(five);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_six`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let none = plus_one(None);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.52s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d864716e097bcedfc77e01bd544559e13bd55d3832186931593a2fc03d3ac259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d864716e097bcedfc77e01bd544559e13bd55d3832186931593a2fc03d3ac259", kill_on_drop: false }`
[INFO] [stdout] d864716e097bcedfc77e01bd544559e13bd55d3832186931593a2fc03d3ac259