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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/19h/zuse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Fzuse", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e5322c2655fc9519ea02aa7878b44907e9b5229
[INFO] checking 19h/zuse against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F19h%2Fzuse" "/workspace/builds/worker-112/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/19h/zuse on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/19h/zuse
[INFO] finished tweaking git repo https://github.com/19h/zuse
[INFO] tweaked toml for git repo https://github.com/19h/zuse written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/19h/zuse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "6798f531f1ea3d8a6894572533bd45ff90d0998a0648fd189e0203fe857586ba", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1499:25
[INFO] [stdout]      |
[INFO] [stdout] 1499 | /                         tx.send(
[INFO] [stdout] 1500 | |                             msg.with_state(
[INFO] [stdout] 1501 | |                                 JobSMStates::Failure,
[INFO] [stdout] 1502 | |                             ),
[INFO] [stdout] 1503 | |                         ).await;
[INFO] [stdout]      | |________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1508:25
[INFO] [stdout]      |
[INFO] [stdout] 1508 | /                         tx.send(
[INFO] [stdout] 1509 | |                             msg.with_state(
[INFO] [stdout] 1510 | |                                 JobSMStates::Recovery,
[INFO] [stdout] 1511 | |                             ),
[INFO] [stdout] 1512 | |                         ).await;
[INFO] [stdout]      | |________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1587:17
[INFO] [stdout]      |
[INFO] [stdout] 1587 | /                 send_op
[INFO] [stdout] 1588 | |                     .map_err(|err|
[INFO] [stdout] 1589 | |                         println!(
[INFO] [stdout] 1590 | |                             "WARNING: SENDING MESSAGE VIA CHANNEL {:?} FAILED: {:?}",
[INFO] [stdout] ...    |
[INFO] [stdout] 1593 | |                         )
[INFO] [stdout] 1594 | |                     );
[INFO] [stdout]      | |______________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1614:17
[INFO] [stdout]      |
[INFO] [stdout] 1614 | /                 Zuse::test_runner(
[INFO] [stdout] 1615 | |                     args,
[INFO] [stdout] 1616 | |                     (test_id, test),
[INFO] [stdout] 1617 | |                     test_tx,
[INFO] [stdout] 1618 | |                 ).await;
[INFO] [stdout]      | |________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1499:25
[INFO] [stdout]      |
[INFO] [stdout] 1499 | /                         tx.send(
[INFO] [stdout] 1500 | |                             msg.with_state(
[INFO] [stdout] 1501 | |                                 JobSMStates::Failure,
[INFO] [stdout] 1502 | |                             ),
[INFO] [stdout] 1503 | |                         ).await;
[INFO] [stdout]      | |________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1508:25
[INFO] [stdout]      |
[INFO] [stdout] 1508 | /                         tx.send(
[INFO] [stdout] 1509 | |                             msg.with_state(
[INFO] [stdout] 1510 | |                                 JobSMStates::Recovery,
[INFO] [stdout] 1511 | |                             ),
[INFO] [stdout] 1512 | |                         ).await;
[INFO] [stdout]      | |________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1587:17
[INFO] [stdout]      |
[INFO] [stdout] 1587 | /                 send_op
[INFO] [stdout] 1588 | |                     .map_err(|err|
[INFO] [stdout] 1589 | |                         println!(
[INFO] [stdout] 1590 | |                             "WARNING: SENDING MESSAGE VIA CHANNEL {:?} FAILED: {:?}",
[INFO] [stdout] ...    |
[INFO] [stdout] 1593 | |                         )
[INFO] [stdout] 1594 | |                     );
[INFO] [stdout]      | |______________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1614:17
[INFO] [stdout]      |
[INFO] [stdout] 1614 | /                 Zuse::test_runner(
[INFO] [stdout] 1615 | |                     args,
[INFO] [stdout] 1616 | |                     (test_id, test),
[INFO] [stdout] 1617 | |                     test_tx,
[INFO] [stdout] 1618 | |                 ).await;
[INFO] [stdout]      | |________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "dd54b6124a89ae2027e8de3f8355fb64dc19fb9da622632ccc72592151e90461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd54b6124a89ae2027e8de3f8355fb64dc19fb9da622632ccc72592151e90461", kill_on_drop: false }`
[INFO] [stdout] dd54b6124a89ae2027e8de3f8355fb64dc19fb9da622632ccc72592151e90461
