[INFO] cloning repository https://github.com/lowks/gettingrusty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lowks/gettingrusty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c793a1888c8b5ef702b8ea63e1e91c9084c7e9a
[INFO] testing lowks/gettingrusty against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lowks/gettingrusty on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lowks/gettingrusty
[INFO] finished tweaking git repo https://github.com/lowks/gettingrusty
[INFO] tweaked toml for git repo https://github.com/lowks/gettingrusty written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/lowks/gettingrusty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac417e04c6776be00c7c6f0bb7e13e5991abee0009317aa83ddef01555a86479
[INFO] running `Command { std: "docker" "start" "-a" "ac417e04c6776be00c7c6f0bb7e13e5991abee0009317aa83ddef01555a86479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac417e04c6776be00c7c6f0bb7e13e5991abee0009317aa83ddef01555a86479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac417e04c6776be00c7c6f0bb7e13e5991abee0009317aa83ddef01555a86479", kill_on_drop: false }`
[INFO] [stdout] ac417e04c6776be00c7c6f0bb7e13e5991abee0009317aa83ddef01555a86479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc3e97053116303406341a595994fd3aa924331dbac5e21d4e1013df0e1781e7
[INFO] running `Command { std: "docker" "start" "-a" "fc3e97053116303406341a595994fd3aa924331dbac5e21d4e1013df0e1781e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling gettingrusty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/semicolons.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |             2 * m;
[INFO] [stdout]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |             let _ = 2 * m;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "fc3e97053116303406341a595994fd3aa924331dbac5e21d4e1013df0e1781e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3e97053116303406341a595994fd3aa924331dbac5e21d4e1013df0e1781e7", kill_on_drop: false }`
[INFO] [stdout] fc3e97053116303406341a595994fd3aa924331dbac5e21d4e1013df0e1781e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98efca7a73d863ddcc66d1356aba96864355daa2fade8a7cf308f58dff899495
[INFO] running `Command { std: "docker" "start" "-a" "98efca7a73d863ddcc66d1356aba96864355daa2fade8a7cf308f58dff899495", kill_on_drop: false }`
[INFO] [stderr]    Compiling gettingrusty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/semicolons.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |             2 * m;
[INFO] [stdout]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |             let _ = 2 * m;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "98efca7a73d863ddcc66d1356aba96864355daa2fade8a7cf308f58dff899495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98efca7a73d863ddcc66d1356aba96864355daa2fade8a7cf308f58dff899495", kill_on_drop: false }`
[INFO] [stdout] 98efca7a73d863ddcc66d1356aba96864355daa2fade8a7cf308f58dff899495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae8bfc5b88625bb072db1e7fcb666f5a48efb2b75a20e3da05ae27303887c460
[INFO] running `Command { std: "docker" "start" "-a" "ae8bfc5b88625bb072db1e7fcb666f5a48efb2b75a20e3da05ae27303887c460", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stdout] running 10 tests
[INFO] [stderr]   --> src/semicolons.rs:13:7
[INFO] [stdout] test conditionals::test_conditionals ... ok
[INFO] [stderr]    |
[INFO] [stdout] test functional::test_functional ... ok
[INFO] [stderr] 13 |             2 * m;
[INFO] [stdout] test guard_clause::test_pattern_m ... ok
[INFO] [stderr]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stdout] test matching::test_matching ... ok
[INFO] [stderr]    |
[INFO] [stdout] test semicolons::test_expr ... ok
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test string::test_string_capacity ... ok
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout] test string::test_truncate ... ok
[INFO] [stderr]    |
[INFO] [stderr] 13 |             let _ = 2 * m;
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `gettingrusty` (bin "gettingrusty" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gettingrusty-3360ed1daa37ab3e)
[INFO] [stdout] test pattern_match::test_pattern_m ... ok
[INFO] [stdout] test string::test_push_string ... ok
[INFO] [stdout] test string::test_replace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae8bfc5b88625bb072db1e7fcb666f5a48efb2b75a20e3da05ae27303887c460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8bfc5b88625bb072db1e7fcb666f5a48efb2b75a20e3da05ae27303887c460", kill_on_drop: false }`
[INFO] [stdout] ae8bfc5b88625bb072db1e7fcb666f5a48efb2b75a20e3da05ae27303887c460