[INFO] cloning repository https://github.com/jeorb/icfp2006
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeorb/icfp2006" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeorb%2Ficfp2006", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeorb%2Ficfp2006'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d5dce52c26800e02857ae5f260791fef6450b46
[INFO] testing jeorb/icfp2006 against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeorb%2Ficfp2006" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeorb/icfp2006 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeorb/icfp2006
[INFO] finished tweaking git repo https://github.com/jeorb/icfp2006
[INFO] tweaked toml for git repo https://github.com/jeorb/icfp2006 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jeorb/icfp2006 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fb0a9ebbe194adf2362217090f17cdb02f409280e637ed4c2cea780f37f0641
[INFO] running `Command { std: "docker" "start" "-a" "6fb0a9ebbe194adf2362217090f17cdb02f409280e637ed4c2cea780f37f0641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb0a9ebbe194adf2362217090f17cdb02f409280e637ed4c2cea780f37f0641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb0a9ebbe194adf2362217090f17cdb02f409280e637ed4c2cea780f37f0641", kill_on_drop: false }`
[INFO] [stdout] 6fb0a9ebbe194adf2362217090f17cdb02f409280e637ed4c2cea780f37f0641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eae600c18d2732e6ff6866aed7b93a3839a00239b7cb96c98ad3b13b522ddbba
[INFO] running `Command { std: "docker" "start" "-a" "eae600c18d2732e6ff6866aed7b93a3839a00239b7cb96c98ad3b13b522ddbba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `dump_file` is never read
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut dump_file = "".to_owned();
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "eae600c18d2732e6ff6866aed7b93a3839a00239b7cb96c98ad3b13b522ddbba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae600c18d2732e6ff6866aed7b93a3839a00239b7cb96c98ad3b13b522ddbba", kill_on_drop: false }`
[INFO] [stdout] eae600c18d2732e6ff6866aed7b93a3839a00239b7cb96c98ad3b13b522ddbba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0df74cd03acc425502e6af354222a7bcd79783f6b9e4237b4f102cc8e09e15bc
[INFO] running `Command { std: "docker" "start" "-a" "0df74cd03acc425502e6af354222a7bcd79783f6b9e4237b4f102cc8e09e15bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `dump_file` is never read
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut dump_file = "".to_owned();
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "0df74cd03acc425502e6af354222a7bcd79783f6b9e4237b4f102cc8e09e15bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df74cd03acc425502e6af354222a7bcd79783f6b9e4237b4f102cc8e09e15bc", kill_on_drop: false }`
[INFO] [stdout] 0df74cd03acc425502e6af354222a7bcd79783f6b9e4237b4f102cc8e09e15bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b5560377193d9fb04d5fa596226da6c5b92f456657890d0f138d78263cfbda6
[INFO] running `Command { std: "docker" "start" "-a" "5b5560377193d9fb04d5fa596226da6c5b92f456657890d0f138d78263cfbda6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: value assigned to `dump_file` is never read
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 13 |     let mut dump_file = "".to_owned();
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `icfp2006` (bin "icfp2006" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/icfp2006-1e25175e8ddea11c)
[INFO] running `Command { std: "docker" "inspect" "5b5560377193d9fb04d5fa596226da6c5b92f456657890d0f138d78263cfbda6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5560377193d9fb04d5fa596226da6c5b92f456657890d0f138d78263cfbda6", kill_on_drop: false }`
[INFO] [stdout] 5b5560377193d9fb04d5fa596226da6c5b92f456657890d0f138d78263cfbda6