[INFO] fetching crate canadensis_serial 0.3.1...
[INFO] checking canadensis_serial-0.3.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate canadensis_serial 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate canadensis_serial 0.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate canadensis_serial 0.3.1
[INFO] tweaked toml for crates.io crate canadensis_serial 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate canadensis_serial 0.3.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding hash32 v0.2.1 (available: v1.0.0)
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.8.0)
[INFO] [stderr]       Adding zerocopy v0.6.6 (available: v0.8.26)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b9c50fc8eb8c16f9c9152af391ed12c7660c99aab30e673b75c68e5501309ce
[INFO] running `Command { std: "docker" "start" "-a" "8b9c50fc8eb8c16f9c9152af391ed12c7660c99aab30e673b75c68e5501309ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b9c50fc8eb8c16f9c9152af391ed12c7660c99aab30e673b75c68e5501309ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9c50fc8eb8c16f9c9152af391ed12c7660c99aab30e673b75c68e5501309ce", kill_on_drop: false }`
[INFO] [stdout] 8b9c50fc8eb8c16f9c9152af391ed12c7660c99aab30e673b75c68e5501309ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcdf2591718628b3126d92099fdde2a2ad8cdb743afa83cb1620005749c65834
[INFO] running `Command { std: "docker" "start" "-a" "fcdf2591718628b3126d92099fdde2a2ad8cdb743afa83cb1620005749c65834", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking debug-helper v0.3.13
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling hash32-derive v0.1.1
[INFO] [stderr]     Checking crc-any v2.5.0
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking fallible_collections v0.5.1
[INFO] [stderr]     Checking canadensis_core v0.3.1
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking simplelog v0.12.2
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]     Checking zerocopy v0.6.6
[INFO] [stderr]     Checking canadensis_header v0.1.0
[INFO] [stderr]     Checking canadensis_serial v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DecodeError` is never constructed
[INFO] [stdout]    --> src/cobs.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct DecodeError;
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.98s
[INFO] running `Command { std: "docker" "inspect" "fcdf2591718628b3126d92099fdde2a2ad8cdb743afa83cb1620005749c65834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcdf2591718628b3126d92099fdde2a2ad8cdb743afa83cb1620005749c65834", kill_on_drop: false }`
[INFO] [stdout] fcdf2591718628b3126d92099fdde2a2ad8cdb743afa83cb1620005749c65834