[INFO] cloning repository https://github.com/joeleehen/lee_alg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joeleehen/lee_alg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeleehen%2Flee_alg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeleehen%2Flee_alg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a3b4fe1c8759fce96f8d70776b0c060bfb09ccc
[INFO] testing joeleehen/lee_alg against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeleehen%2Flee_alg" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joeleehen/lee_alg
[INFO] finished tweaking git repo https://github.com/joeleehen/lee_alg
[INFO] tweaked toml for git repo https://github.com/joeleehen/lee_alg written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joeleehen/lee_alg on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joeleehen/lee_alg 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcfd9d20b3c5e828259c2292f8ee3ec1435256826376c07134e76786ec9653ce
[INFO] running `Command { std: "docker" "start" "-a" "fcfd9d20b3c5e828259c2292f8ee3ec1435256826376c07134e76786ec9653ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcfd9d20b3c5e828259c2292f8ee3ec1435256826376c07134e76786ec9653ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcfd9d20b3c5e828259c2292f8ee3ec1435256826376c07134e76786ec9653ce", kill_on_drop: false }`
[INFO] [stdout] fcfd9d20b3c5e828259c2292f8ee3ec1435256826376c07134e76786ec9653ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61f9435ee37cc6f3580c3d6b91ff90ba1e39efd0a3cfce2baf6a994b7baa4ce0
[INFO] running `Command { std: "docker" "start" "-a" "61f9435ee37cc6f3580c3d6b91ff90ba1e39efd0a3cfce2baf6a994b7baa4ce0", kill_on_drop: false }`
[INFO] [stderr]    Compiling lee_alg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "61f9435ee37cc6f3580c3d6b91ff90ba1e39efd0a3cfce2baf6a994b7baa4ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f9435ee37cc6f3580c3d6b91ff90ba1e39efd0a3cfce2baf6a994b7baa4ce0", kill_on_drop: false }`
[INFO] [stdout] 61f9435ee37cc6f3580c3d6b91ff90ba1e39efd0a3cfce2baf6a994b7baa4ce0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9df43b77473c4a3bfef6d9792d8fcb8dc6d184a9892773cb97238cd4d69691e4
[INFO] running `Command { std: "docker" "start" "-a" "9df43b77473c4a3bfef6d9792d8fcb8dc6d184a9892773cb97238cd4d69691e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling lee_alg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> tests/tests.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 171 |     a - b;
[INFO] [stdout]     |     ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let _ = a - b;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "9df43b77473c4a3bfef6d9792d8fcb8dc6d184a9892773cb97238cd4d69691e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df43b77473c4a3bfef6d9792d8fcb8dc6d184a9892773cb97238cd4d69691e4", kill_on_drop: false }`
[INFO] [stdout] 9df43b77473c4a3bfef6d9792d8fcb8dc6d184a9892773cb97238cd4d69691e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a5484249c799a58586d8a3cf5c6331a5e6ad841073089a063c84cae525f2e3d
[INFO] running `Command { std: "docker" "start" "-a" "1a5484249c799a58586d8a3cf5c6331a5e6ad841073089a063c84cae525f2e3d", kill_on_drop: false }`
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> tests/tests.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     a - b;
[INFO] [stderr]     |     ^^^^^ the arithmetic operation produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let _ = a - b;
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `lee_alg` (test "tests") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lee_alg-8e1f14f7361eb36c)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lee_alg-7e19e218a6db28a1)
[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] [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/tests.rs (/opt/rustwide/target/debug/deps/tests-51e2dacb2f2cee6f)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test add ... ok
[INFO] [stdout] test det_big_two ... ok
[INFO] [stdout] test det_trivial ... ok
[INFO] [stdout] test det_two ... ok
[INFO] [stdout] test dot_prod ... ok
[INFO] [stdout] test invert_one ... ok
[INFO] [stdout] test invert_two ... ok
[INFO] [stdout] test multiple_one ... ok
[INFO] [stdout] test multiply ... ok
[INFO] [stdout] test cols ... ok
[INFO] [stdout] test bad_dot_prod - should panic ... ok
[INFO] [stdout] test bad_matrix - should panic ... ok
[INFO] [stdout] test singular_invert - should panic ... ok
[INFO] [stdout] test square ... ok
[INFO] [stdout] test bad_add - should panic ... ok
[INFO] [stdout] test determinant - should panic ... ok
[INFO] [stdout] test transpose ... ok
[INFO] [stdout] test bad_subtract - should panic ... ok
[INFO] [stdout] test unsquare_invert - should panic ... ok
[INFO] [stdout] test subtract ... ok
[INFO] [stdout] test scalar_mul ... ok
[INFO] [stdout] test rows ... ok
[INFO] [stdout] test det_big ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lee_alg
[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" "1a5484249c799a58586d8a3cf5c6331a5e6ad841073089a063c84cae525f2e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5484249c799a58586d8a3cf5c6331a5e6ad841073089a063c84cae525f2e3d", kill_on_drop: false }`
[INFO] [stdout] 1a5484249c799a58586d8a3cf5c6331a5e6ad841073089a063c84cae525f2e3d