[INFO] cloning repository https://github.com/hqweay/rust-lang-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hqweay/rust-lang-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhqweay%2Frust-lang-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhqweay%2Frust-lang-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2e37a4f14b9f911718c8a65d9ddb00de2e0f232
[INFO] testing hqweay/rust-lang-learn against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhqweay%2Frust-lang-learn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hqweay/rust-lang-learn on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hqweay/rust-lang-learn
[INFO] finished tweaking git repo https://github.com/hqweay/rust-lang-learn
[INFO] tweaked toml for git repo https://github.com/hqweay/rust-lang-learn written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hqweay/rust-lang-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb077b10da721d4070443cd9a8c96c67d90178fc613172d241c3043205a1e0c3
[INFO] running `Command { std: "docker" "start" "-a" "bb077b10da721d4070443cd9a8c96c67d90178fc613172d241c3043205a1e0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb077b10da721d4070443cd9a8c96c67d90178fc613172d241c3043205a1e0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb077b10da721d4070443cd9a8c96c67d90178fc613172d241c3043205a1e0c3", kill_on_drop: false }`
[INFO] [stdout] bb077b10da721d4070443cd9a8c96c67d90178fc613172d241c3043205a1e0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a185e4a7351c9995929aa3711e6e9ddb7ebca87c28a2ad5050123ac6eb8a9cd
[INFO] running `Command { std: "docker" "start" "-a" "5a185e4a7351c9995929aa3711e6e9ddb7ebca87c28a2ad5050123ac6eb8a9cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "5a185e4a7351c9995929aa3711e6e9ddb7ebca87c28a2ad5050123ac6eb8a9cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a185e4a7351c9995929aa3711e6e9ddb7ebca87c28a2ad5050123ac6eb8a9cd", kill_on_drop: false }`
[INFO] [stdout] 5a185e4a7351c9995929aa3711e6e9ddb7ebca87c28a2ad5050123ac6eb8a9cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20a70d4fd49e5230820d6d959f7cf1060188f5c2c33de273eadfa9690856c4d1
[INFO] running `Command { std: "docker" "start" "-a" "20a70d4fd49e5230820d6d959f7cf1060188f5c2c33de273eadfa9690856c4d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `haha`
[INFO] [stdout]   --> tests/test_trait.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let haha = item.divide(2);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_haha`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "20a70d4fd49e5230820d6d959f7cf1060188f5c2c33de273eadfa9690856c4d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a70d4fd49e5230820d6d959f7cf1060188f5c2c33de273eadfa9690856c4d1", kill_on_drop: false }`
[INFO] [stdout] 20a70d4fd49e5230820d6d959f7cf1060188f5c2c33de273eadfa9690856c4d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32aabaad93b9c24fefbdfe49e8143789041fc7f2e035b122d9f2ec60ff5b66b5
[INFO] running `Command { std: "docker" "start" "-a" "32aabaad93b9c24fefbdfe49e8143789041fc7f2e035b122d9f2ec60ff5b66b5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `haha`
[INFO] [stderr]   --> tests/test_trait.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let haha = item.divide(2);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_haha`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tiny-grep` (test "test_trait") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tiny_grep-3f5df296f25d0d94)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test util::application::tests::run_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tiny_grep-004ba97ef9eacbb4)
[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] [stderr]      Running tests/test_closure.rs (/opt/rustwide/target/debug/deps/test_closure-3bf0274840eb224c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_1 ... ok
[INFO] [stdout] test test_2 ... ok
[INFO] [stdout] test test_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_error.rs (/opt/rustwide/target/debug/deps/test_error-2fd1176cf3ffee9b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_match ... ok
[INFO] [stdout] test test ... ok
[INFO] [stdout] test test_unwrap ... ok
[INFO] [stdout] test test_error ... ok
[INFO] [stderr]      Running tests/test_run.rs (/opt/rustwide/target/debug/deps/test_run-3f85c42baa4ad021)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_run`
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] running 2 tests
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/test_run-3f85c42baa4ad021` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "32aabaad93b9c24fefbdfe49e8143789041fc7f2e035b122d9f2ec60ff5b66b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32aabaad93b9c24fefbdfe49e8143789041fc7f2e035b122d9f2ec60ff5b66b5", kill_on_drop: false }`
[INFO] [stdout] 32aabaad93b9c24fefbdfe49e8143789041fc7f2e035b122d9f2ec60ff5b66b5