[INFO] fetching crate rusty-but-fit 0.5.0...
[INFO] checking rusty-but-fit-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rusty-but-fit 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rusty-but-fit 0.5.0
[INFO] finished tweaking crates.io crate rusty-but-fit 0.5.0
[INFO] tweaked toml for crates.io crate rusty-but-fit 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-but-fit 0.5.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusty-but-fit 0.5.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9ef73c1547d695e212a4856aa7f1f2960e47a70770c3103dc17439849002317
[INFO] running `Command { std: "docker" "start" "-a" "b9ef73c1547d695e212a4856aa7f1f2960e47a70770c3103dc17439849002317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ef73c1547d695e212a4856aa7f1f2960e47a70770c3103dc17439849002317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ef73c1547d695e212a4856aa7f1f2960e47a70770c3103dc17439849002317", kill_on_drop: false }`
[INFO] [stdout] b9ef73c1547d695e212a4856aa7f1f2960e47a70770c3103dc17439849002317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc85bfaa0bb65bd45347aeb918d19ff53fc1914326d4ea723939272e8d812120
[INFO] running `Command { std: "docker" "start" "-a" "dc85bfaa0bb65bd45347aeb918d19ff53fc1914326d4ea723939272e8d812120", kill_on_drop: false }`
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking anstyle-query v1.0.3
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]     Checking either v1.12.0
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking clap_builder v4.5.8
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling clap_derive v4.5.8
[INFO] [stderr]     Checking clap v4.5.8
[INFO] [stderr]     Checking rusty-but-fit v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 2], Infallible>
[INFO] [stdout]   --> src/message.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |             crc: <[u8; 2]>::try_from(crc).unwrap(),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-but-fit` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 2], Infallible>
[INFO] [stdout]   --> src/message.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |             crc: <[u8; 2]>::try_from(crc).unwrap(),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-but-fit` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dc85bfaa0bb65bd45347aeb918d19ff53fc1914326d4ea723939272e8d812120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc85bfaa0bb65bd45347aeb918d19ff53fc1914326d4ea723939272e8d812120", kill_on_drop: false }`
[INFO] [stdout] dc85bfaa0bb65bd45347aeb918d19ff53fc1914326d4ea723939272e8d812120