[INFO] fetching crate br-serial 0.0.1...
[INFO] testing br-serial-0.0.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate br-serial 0.0.1 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate br-serial 0.0.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded serial2 v0.2.6
[INFO] [stderr]   Downloaded errno v0.3.4
[INFO] [stderr]   Downloaded serialport v4.2.2
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded aho-corasick v1.1.1
[INFO] [stderr]   Downloaded rustix v0.38.17
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fc247a23e98ed7f14e9bf7e30da7852a3d503237dbe9c0e36cae52a3686355b
[INFO] running `Command { std: "docker" "start" "-a" "4fc247a23e98ed7f14e9bf7e30da7852a3d503237dbe9c0e36cae52a3686355b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fc247a23e98ed7f14e9bf7e30da7852a3d503237dbe9c0e36cae52a3686355b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc247a23e98ed7f14e9bf7e30da7852a3d503237dbe9c0e36cae52a3686355b", kill_on_drop: false }`
[INFO] [stdout] 4fc247a23e98ed7f14e9bf7e30da7852a3d503237dbe9c0e36cae52a3686355b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 55f76666241ad0d3158526f5cd9cc0f0874b2b65f66337806b2e45a8781d0dd5
[INFO] running `Command { std: "docker" "start" "-a" "55f76666241ad0d3158526f5cd9cc0f0874b2b65f66337806b2e45a8781d0dd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling serial2 v0.2.6
[INFO] [stderr]    Compiling serialport v4.2.2
[INFO] [stderr]    Compiling 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 `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `Command { std: "docker" "inspect" "55f76666241ad0d3158526f5cd9cc0f0874b2b65f66337806b2e45a8781d0dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f76666241ad0d3158526f5cd9cc0f0874b2b65f66337806b2e45a8781d0dd5", kill_on_drop: false }`
[INFO] [stdout] 55f76666241ad0d3158526f5cd9cc0f0874b2b65f66337806b2e45a8781d0dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 853f94934a18f483112750e0ce3255d447b7303d39beb8211bd57356dbe4ff38
[INFO] running `Command { std: "docker" "start" "-a" "853f94934a18f483112750e0ce3255d447b7303d39beb8211bd57356dbe4ff38", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.17
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.9
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling humantime v2.1.0
[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 `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling regex-automata v0.3.9
[INFO] [stderr]    Compiling regex v1.9.6
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling 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 `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `Command { std: "docker" "inspect" "853f94934a18f483112750e0ce3255d447b7303d39beb8211bd57356dbe4ff38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "853f94934a18f483112750e0ce3255d447b7303d39beb8211bd57356dbe4ff38", kill_on_drop: false }`
[INFO] [stdout] 853f94934a18f483112750e0ce3255d447b7303d39beb8211bd57356dbe4ff38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7b5ac552191e00545a31e8cdac2c1adcb5bf1e8f6be939a0e50fcd5e9b327869
[INFO] running `Command { std: "docker" "start" "-a" "7b5ac552191e00545a31e8cdac2c1adcb5bf1e8f6be939a0e50fcd5e9b327869", kill_on_drop: false }`
[INFO] [stderr] warning: field `step` is never read
[INFO] [stderr]   --> src/usb.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Usb {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] 11 |     pub com: String,
[INFO] [stderr] 12 |     pub step: i32,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Usb` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `br-serial` (lib) generated 1 warning
[INFO] [stderr] warning: `br-serial` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/br_serial-27f0c2b6fbc7a79a)
[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" "7b5ac552191e00545a31e8cdac2c1adcb5bf1e8f6be939a0e50fcd5e9b327869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5ac552191e00545a31e8cdac2c1adcb5bf1e8f6be939a0e50fcd5e9b327869", kill_on_drop: false }`
[INFO] [stdout] 7b5ac552191e00545a31e8cdac2c1adcb5bf1e8f6be939a0e50fcd5e9b327869