[INFO] fetching crate umcan 0.2.0...
[INFO] testing umcan-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate umcan 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate umcan 0.2.0
[INFO] finished tweaking crates.io crate umcan 0.2.0
[INFO] tweaked toml for crates.io crate umcan 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate umcan 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate umcan 0.2.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e6da7bb7c1c4409ed1e8ceb3919a36b83fe7460a63af1b6ba64f69d46efacfd
[INFO] running `Command { std: "docker" "start" "-a" "6e6da7bb7c1c4409ed1e8ceb3919a36b83fe7460a63af1b6ba64f69d46efacfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e6da7bb7c1c4409ed1e8ceb3919a36b83fe7460a63af1b6ba64f69d46efacfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6da7bb7c1c4409ed1e8ceb3919a36b83fe7460a63af1b6ba64f69d46efacfd", kill_on_drop: false }`
[INFO] [stdout] 6e6da7bb7c1c4409ed1e8ceb3919a36b83fe7460a63af1b6ba64f69d46efacfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 369cf179757717ddfedc67860742ae9ca19bf9db3eab9e4d325b537ed868cbca
[INFO] running `Command { std: "docker" "start" "-a" "369cf179757717ddfedc67860742ae9ca19bf9db3eab9e4d325b537ed868cbca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling binrw_derive v0.11.2
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling binrw v0.11.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling embedded-can v0.4.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling umcan v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lib.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout] 16 +     #[br(map(|x: u8| (x as i16) - 50))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.68s
[INFO] running `Command { std: "docker" "inspect" "369cf179757717ddfedc67860742ae9ca19bf9db3eab9e4d325b537ed868cbca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369cf179757717ddfedc67860742ae9ca19bf9db3eab9e4d325b537ed868cbca", kill_on_drop: false }`
[INFO] [stdout] 369cf179757717ddfedc67860742ae9ca19bf9db3eab9e4d325b537ed868cbca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a695fc74d12ad07ca1706c2cf90c1b14c9fb2ed13362515380101f20cb1d9b6b
[INFO] running `Command { std: "docker" "start" "-a" "a695fc74d12ad07ca1706c2cf90c1b14c9fb2ed13362515380101f20cb1d9b6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byte_conv v0.1.1
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lib.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout] 16 +     #[br(map(|x: u8| (x as i16) - 50))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling neli-proc-macros v0.1.3
[INFO] [stderr]    Compiling neli v0.6.4
[INFO] [stderr]    Compiling socketcan v2.0.0
[INFO] [stderr]    Compiling umcan v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lib.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stdout] 16 +     #[br(map(|x: u8| (x as i16) - 50))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.31s
[INFO] running `Command { std: "docker" "inspect" "a695fc74d12ad07ca1706c2cf90c1b14c9fb2ed13362515380101f20cb1d9b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a695fc74d12ad07ca1706c2cf90c1b14c9fb2ed13362515380101f20cb1d9b6b", kill_on_drop: false }`
[INFO] [stdout] a695fc74d12ad07ca1706c2cf90c1b14c9fb2ed13362515380101f20cb1d9b6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3d5e04e5c14908d13623d90cc552b5fd364e0ca3ca036c97450672ec1a597432
[INFO] running `Command { std: "docker" "start" "-a" "3d5e04e5c14908d13623d90cc552b5fd364e0ca3ca036c97450672ec1a597432", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/lib.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stderr]    |                      ^               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 16 -     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stderr] 16 +     #[br(map(|x: u8| (x as i16) - 50))]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `umcan` (lib) generated 1 warning (run `cargo fix --lib -p umcan` to apply 1 suggestion)
[INFO] [stderr] warning: `umcan` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/umcan-17a6d1fa95dcda33)
[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]    Doc-tests umcan
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/lib.rs:16:22
[INFO] [stderr]    |
[INFO] [stderr] 16 |     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stderr]    |                      ^               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 16 -     #[br(map(|x: u8| ((x as i16) - 50)))]
[INFO] [stderr] 16 +     #[br(map(|x: u8| (x as i16) - 50))]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "3d5e04e5c14908d13623d90cc552b5fd364e0ca3ca036c97450672ec1a597432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5e04e5c14908d13623d90cc552b5fd364e0ca3ca036c97450672ec1a597432", kill_on_drop: false }`
[INFO] [stdout] 3d5e04e5c14908d13623d90cc552b5fd364e0ca3ca036c97450672ec1a597432