[INFO] cloning repository https://github.com/mdibello/labyrinthe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdibello/labyrinthe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdibello%2Flabyrinthe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdibello%2Flabyrinthe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7484e06542747049adff93484cfc6203c2dd4a10
[INFO] testing mdibello/labyrinthe against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdibello%2Flabyrinthe" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdibello/labyrinthe on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdibello/labyrinthe
[INFO] finished tweaking git repo https://github.com/mdibello/labyrinthe
[INFO] tweaked toml for git repo https://github.com/mdibello/labyrinthe written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mdibello/labyrinthe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 103e09cfb541e3401a0aeb37e3df5ad0965d9e234916b1ee52672f931b64dfa9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "103e09cfb541e3401a0aeb37e3df5ad0965d9e234916b1ee52672f931b64dfa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "103e09cfb541e3401a0aeb37e3df5ad0965d9e234916b1ee52672f931b64dfa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103e09cfb541e3401a0aeb37e3df5ad0965d9e234916b1ee52672f931b64dfa9", kill_on_drop: false }`
[INFO] [stdout] 103e09cfb541e3401a0aeb37e3df5ad0965d9e234916b1ee52672f931b64dfa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e824ea4e618b84a91ea8c0c3fa552f38f1fb19cc5af2c9df4cbc54fe5f0b881a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e824ea4e618b84a91ea8c0c3fa552f38f1fb19cc5af2c9df4cbc54fe5f0b881a", 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] [stderr]    Compiling labyrinthe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `binary_tree_maze`
[INFO] [stdout]   --> src/main.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn binary_tree_maze(w: usize, h: usize) -> Maze {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "e824ea4e618b84a91ea8c0c3fa552f38f1fb19cc5af2c9df4cbc54fe5f0b881a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e824ea4e618b84a91ea8c0c3fa552f38f1fb19cc5af2c9df4cbc54fe5f0b881a", kill_on_drop: false }`
[INFO] [stdout] e824ea4e618b84a91ea8c0c3fa552f38f1fb19cc5af2c9df4cbc54fe5f0b881a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5952dc434e13b70a18c466054fe001734e58adb3152de4b32f7c2b71f00cbcd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e5952dc434e13b70a18c466054fe001734e58adb3152de4b32f7c2b71f00cbcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling labyrinthe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `binary_tree_maze`
[INFO] [stdout]   --> src/main.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn binary_tree_maze(w: usize, h: usize) -> Maze {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/labyrinthe-7dd5ca3d97cfd25f)
[INFO] running `Command { std: "docker" "inspect" "e5952dc434e13b70a18c466054fe001734e58adb3152de4b32f7c2b71f00cbcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5952dc434e13b70a18c466054fe001734e58adb3152de4b32f7c2b71f00cbcd", kill_on_drop: false }`
[INFO] [stdout] e5952dc434e13b70a18c466054fe001734e58adb3152de4b32f7c2b71f00cbcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0bc1277c120f3df47d2da84b37e92b07e7533d7ad9e22bfee7a64a1335fb514f
[INFO] running `Command { std: "docker" "start" "-a" "0bc1277c120f3df47d2da84b37e92b07e7533d7ad9e22bfee7a64a1335fb514f", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `binary_tree_maze`
[INFO] [stderr]   --> src/main.rs:98:4
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn binary_tree_maze(w: usize, h: usize) -> Maze {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `labyrinthe` (bin "labyrinthe" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/labyrinthe-7dd5ca3d97cfd25f)
[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" "0bc1277c120f3df47d2da84b37e92b07e7533d7ad9e22bfee7a64a1335fb514f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc1277c120f3df47d2da84b37e92b07e7533d7ad9e22bfee7a64a1335fb514f", kill_on_drop: false }`
[INFO] [stdout] 0bc1277c120f3df47d2da84b37e92b07e7533d7ad9e22bfee7a64a1335fb514f