[INFO] fetching crate br-serial 0.0.1...
[INFO] checking br-serial-0.0.1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate br-serial 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate br-serial 0.0.1
[INFO] finished tweaking crates.io crate br-serial 0.0.1
[INFO] tweaked toml for crates.io crate br-serial 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate br-serial 0.0.1 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate br-serial 0.0.1 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dabf672ee1490d1e3b2bc13c1ce8ab0a6fa40bfef3edc18d3785b44c6a39793
[INFO] running `Command { std: "docker" "start" "-a" "9dabf672ee1490d1e3b2bc13c1ce8ab0a6fa40bfef3edc18d3785b44c6a39793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dabf672ee1490d1e3b2bc13c1ce8ab0a6fa40bfef3edc18d3785b44c6a39793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dabf672ee1490d1e3b2bc13c1ce8ab0a6fa40bfef3edc18d3785b44c6a39793", kill_on_drop: false }`
[INFO] [stdout] 9dabf672ee1490d1e3b2bc13c1ce8ab0a6fa40bfef3edc18d3785b44c6a39793
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6474314a7910dcfa95dfd483a1433f61d6a2e9d104cf5f83120703e9bf951717
[INFO] running `Command { std: "docker" "start" "-a" "6474314a7910dcfa95dfd483a1433f61d6a2e9d104cf5f83120703e9bf951717", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rustix v0.38.17
[INFO] [stderr]     Checking linux-raw-sys v0.4.9
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking serial2 v0.2.6
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking serialport v4.2.2
[INFO] [stderr]     Checking br-serial v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `step` is never read
[INFO] [stdout]   --> src/usb.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Usb {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 11 |     pub com: String,
[INFO] [stdout] 12 |     pub step: i32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Usb` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stdout] warning: field `step` is never read
[INFO] [stdout]   --> src/usb.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Usb {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 11 |     pub com: String,
[INFO] [stdout] 12 |     pub step: i32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Usb` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "6474314a7910dcfa95dfd483a1433f61d6a2e9d104cf5f83120703e9bf951717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6474314a7910dcfa95dfd483a1433f61d6a2e9d104cf5f83120703e9bf951717", kill_on_drop: false }`
[INFO] [stdout] 6474314a7910dcfa95dfd483a1433f61d6a2e9d104cf5f83120703e9bf951717