[INFO] updating cached repository https://github.com/swizzard/rust-mazes
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46d2f9f69c6ba91b75dab043e72d95d8953a9c8c
[INFO] testing swizzard/rust-mazes against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswizzard%2Frust-mazes" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swizzard/rust-mazes on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/swizzard/rust-mazes
[INFO] finished tweaking git repo https://github.com/swizzard/rust-mazes
[INFO] tweaked toml for git repo https://github.com/swizzard/rust-mazes written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/swizzard/rust-mazes already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 118233fd4287834b1c1e8d14c38fb9e0e37008347eb9271a9148e9083744d8a8
[INFO] running `"docker" "start" "-a" "118233fd4287834b1c1e8d14c38fb9e0e37008347eb9271a9148e9083744d8a8"`
[INFO] [stderr]    Compiling mazes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `"docker" "inspect" "118233fd4287834b1c1e8d14c38fb9e0e37008347eb9271a9148e9083744d8a8"`
[INFO] running `"docker" "rm" "-f" "118233fd4287834b1c1e8d14c38fb9e0e37008347eb9271a9148e9083744d8a8"`
[INFO] [stdout] 118233fd4287834b1c1e8d14c38fb9e0e37008347eb9271a9148e9083744d8a8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5511777361156965f48c1d641dedf3f9e452c2031a664d39b26b1e656444e79
[INFO] running `"docker" "start" "-a" "d5511777361156965f48c1d641dedf3f9e452c2031a664d39b26b1e656444e79"`
[INFO] [stderr]    Compiling mazes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/maze.rs:302:21
[INFO] [stderr]     |
[INFO] [stderr] 302 |             assert!(c.loc.column >= 0);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/maze.rs:304:21
[INFO] [stderr]     |
[INFO] [stderr] 304 |             assert!(c.loc.column >= 0);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "d5511777361156965f48c1d641dedf3f9e452c2031a664d39b26b1e656444e79"`
[INFO] running `"docker" "rm" "-f" "d5511777361156965f48c1d641dedf3f9e452c2031a664d39b26b1e656444e79"`
[INFO] [stdout] d5511777361156965f48c1d641dedf3f9e452c2031a664d39b26b1e656444e79
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4b72fc2a2325008f38edcf09a4ebf845286f46bec512a0d070ac56b9c334854
[INFO] running `"docker" "start" "-a" "e4b72fc2a2325008f38edcf09a4ebf845286f46bec512a0d070ac56b9c334854"`
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/maze.rs:302:21
[INFO] [stderr]     |
[INFO] [stderr] 302 |             assert!(c.loc.column >= 0);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/maze.rs:304:21
[INFO] [stderr]     |
[INFO] [stderr] 304 |             assert!(c.loc.column >= 0);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mazes-a3eee928fe5fabc0
[INFO] [stdout] running 7 tests
[INFO] [stdout] test cell::test::calc_dir ... ok
[INFO] [stdout] test maze::test::add_neighbor ... ok
[INFO] [stdout] test maze::test::each_col_iter ... ok
[INFO] [stdout] test maze::test::each_cell_iter ... ok
[INFO] [stdout] test maze::test::each_row_iter ... ok
[INFO] [stdout] test maze::test::rand_cell_iter ... ok
[INFO] [stdout] test cell::test::calc_dir_bad ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mazes-bc45da96a3674292
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mazes
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e4b72fc2a2325008f38edcf09a4ebf845286f46bec512a0d070ac56b9c334854"`
[INFO] running `"docker" "rm" "-f" "e4b72fc2a2325008f38edcf09a4ebf845286f46bec512a0d070ac56b9c334854"`
[INFO] [stdout] e4b72fc2a2325008f38edcf09a4ebf845286f46bec512a0d070ac56b9c334854