[INFO] cloning repository https://github.com/yerlikovboy/sudoku_generator
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yerlikovboy/sudoku_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyerlikovboy%2Fsudoku_generator"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyerlikovboy%2Fsudoku_generator'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26c32acc82eaf49e786c44ed6c577f7cb9514137
[INFO] testing yerlikovboy/sudoku_generator against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyerlikovboy%2Fsudoku_generator" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yerlikovboy/sudoku_generator on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yerlikovboy/sudoku_generator
[INFO] finished tweaking git repo https://github.com/yerlikovboy/sudoku_generator
[INFO] tweaked toml for git repo https://github.com/yerlikovboy/sudoku_generator written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/yerlikovboy/sudoku_generator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "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] b5482a1bc539798494120ec4b5f1afea0e7b0c7e7c788c4b237ed32f5ba78e6d
[INFO] running `"docker" "start" "-a" "b5482a1bc539798494120ec4b5f1afea0e7b0c7e7c788c4b237ed32f5ba78e6d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sudoku v0.1.0 (https://github.com/yerlikovboy/sudoku#21fa9b13)
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling sudoku_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.55s
[INFO] running `"docker" "inspect" "b5482a1bc539798494120ec4b5f1afea0e7b0c7e7c788c4b237ed32f5ba78e6d"`
[INFO] running `"docker" "rm" "-f" "b5482a1bc539798494120ec4b5f1afea0e7b0c7e7c788c4b237ed32f5ba78e6d"`
[INFO] [stdout] b5482a1bc539798494120ec4b5f1afea0e7b0c7e7c788c4b237ed32f5ba78e6d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "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] 798a6725668f131bc5762e22e8a70ba14305022ea396f5a9dbcc579d5478283c
[INFO] running `"docker" "start" "-a" "798a6725668f131bc5762e22e8a70ba14305022ea396f5a9dbcc579d5478283c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sudoku_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/cmd.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |                     _expected_alg => (),
[INFO] [stderr]    |                     ------------- matches any value
[INFO] [stderr] 63 |                     _ => return Err(String::from("algorithm different than expected")),
[INFO] [stderr]    |                     ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `"docker" "inspect" "798a6725668f131bc5762e22e8a70ba14305022ea396f5a9dbcc579d5478283c"`
[INFO] running `"docker" "rm" "-f" "798a6725668f131bc5762e22e8a70ba14305022ea396f5a9dbcc579d5478283c"`
[INFO] [stdout] 798a6725668f131bc5762e22e8a70ba14305022ea396f5a9dbcc579d5478283c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "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] fc9204cc42262a2fcd09a1fd8ac1be8023a975a11c900e821e79da5973da28f1
[INFO] running `"docker" "start" "-a" "fc9204cc42262a2fcd09a1fd8ac1be8023a975a11c900e821e79da5973da28f1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/cmd.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |                     _expected_alg => (),
[INFO] [stderr]    |                     ------------- matches any value
[INFO] [stderr] 63 |                     _ => return Err(String::from("algorithm different than expected")),
[INFO] [stderr]    |                     ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku_generator-e42f7abfb8569aae
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test cmd::tests::it_works ... ok
[INFO] [stdout] test gen::diag::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/debug-14912ba56f37e96a
[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] [stderr]      Running /opt/rustwide/target/debug/deps/generate-a206c8b4c443a96b
[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] [stderr]    Doc-tests sudoku_generator
[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" "fc9204cc42262a2fcd09a1fd8ac1be8023a975a11c900e821e79da5973da28f1"`
[INFO] running `"docker" "rm" "-f" "fc9204cc42262a2fcd09a1fd8ac1be8023a975a11c900e821e79da5973da28f1"`
[INFO] [stdout] fc9204cc42262a2fcd09a1fd8ac1be8023a975a11c900e821e79da5973da28f1