[INFO] fetching crate serialitm 0.2.2... [INFO] testing serialitm-0.2.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate serialitm 0.2.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate serialitm 0.2.2 [INFO] finished tweaking crates.io crate serialitm 0.2.2 [INFO] tweaked toml for crates.io crate serialitm 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate serialitm 0.2.2 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 serialitm 0.2.2 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0ff2244dacb5abb47b894304daf6665ae9c20277ed6cfb6d0dc302b514af23b5 [INFO] running `Command { std: "docker" "start" "-a" "0ff2244dacb5abb47b894304daf6665ae9c20277ed6cfb6d0dc302b514af23b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ff2244dacb5abb47b894304daf6665ae9c20277ed6cfb6d0dc302b514af23b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ff2244dacb5abb47b894304daf6665ae9c20277ed6cfb6d0dc302b514af23b5", kill_on_drop: false }` [INFO] [stdout] 0ff2244dacb5abb47b894304daf6665ae9c20277ed6cfb6d0dc302b514af23b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 84c86c2c575ec4e1d4971b33540c156e94282a9c841bfa1433ec1462f9008b15 [INFO] running `Command { std: "docker" "start" "-a" "84c86c2c575ec4e1d4971b33540c156e94282a9c841bfa1433ec1462f9008b15", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling ucd-util v0.1.8 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling itm v0.3.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling backtrace v0.3.46 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling libudev v0.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling chrono v0.4.11 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling env_logger v0.4.3 [INFO] [stderr] Compiling serialport v3.3.0 [INFO] [stderr] Compiling failure v0.1.7 [INFO] [stderr] Compiling mio-serial v3.3.1 [INFO] [stderr] Compiling serialitm v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:39:15 [INFO] [stdout] | [INFO] [stdout] 39 | PollError(StdError), [INFO] [stdout] | --------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 39 - PollError(StdError), [INFO] [stdout] 39 + PollError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:41:14 [INFO] [stdout] | [INFO] [stdout] 41 | StdError(StdError), [INFO] [stdout] | -------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 41 - StdError(StdError), [INFO] [stdout] 41 + StdError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.99s [INFO] running `Command { std: "docker" "inspect" "84c86c2c575ec4e1d4971b33540c156e94282a9c841bfa1433ec1462f9008b15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84c86c2c575ec4e1d4971b33540c156e94282a9c841bfa1433ec1462f9008b15", kill_on_drop: false }` [INFO] [stdout] 84c86c2c575ec4e1d4971b33540c156e94282a9c841bfa1433ec1462f9008b15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5f7140018836878b4258238d055711d6c75a8738c4123256d8ca1b12140d156b [INFO] running `Command { std: "docker" "start" "-a" "5f7140018836878b4258238d055711d6c75a8738c4123256d8ca1b12140d156b", kill_on_drop: false }` [INFO] [stderr] Compiling serialitm v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:39:15 [INFO] [stdout] | [INFO] [stdout] 39 | PollError(StdError), [INFO] [stdout] | --------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 39 - PollError(StdError), [INFO] [stdout] 39 + PollError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:41:14 [INFO] [stdout] | [INFO] [stdout] 41 | StdError(StdError), [INFO] [stdout] | -------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 41 - StdError(StdError), [INFO] [stdout] 41 + StdError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "5f7140018836878b4258238d055711d6c75a8738c4123256d8ca1b12140d156b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f7140018836878b4258238d055711d6c75a8738c4123256d8ca1b12140d156b", kill_on_drop: false }` [INFO] [stdout] 5f7140018836878b4258238d055711d6c75a8738c4123256d8ca1b12140d156b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4717f95f96993b8126f124b36f6ad659babee74d5d077a8b1036a20af79cddac [INFO] running `Command { std: "docker" "start" "-a" "4717f95f96993b8126f124b36f6ad659babee74d5d077a8b1036a20af79cddac", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:39:15 [INFO] [stderr] | [INFO] [stderr] 39 | PollError(StdError), [INFO] [stderr] | --------- ^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 39 - PollError(StdError), [INFO] [stderr] 39 + PollError(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:41:14 [INFO] [stderr] | [INFO] [stderr] 41 | StdError(StdError), [INFO] [stderr] | -------- ^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 41 - StdError(StdError), [INFO] [stderr] 41 + StdError(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `serialitm` (bin "serialitm" test) generated 2 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/serialitm-ec6c92902bc73f42) [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" "4717f95f96993b8126f124b36f6ad659babee74d5d077a8b1036a20af79cddac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4717f95f96993b8126f124b36f6ad659babee74d5d077a8b1036a20af79cddac", kill_on_drop: false }` [INFO] [stdout] 4717f95f96993b8126f124b36f6ad659babee74d5d077a8b1036a20af79cddac