[INFO] cloning repository https://github.com/funnierinspanish/rust-vfd-controller-over-serial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/funnierinspanish/rust-vfd-controller-over-serial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffunnierinspanish%2Frust-vfd-controller-over-serial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffunnierinspanish%2Frust-vfd-controller-over-serial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6eaea4b1accb89cc183c2f8f5c7996b580c9fd31
[INFO] testing funnierinspanish/rust-vfd-controller-over-serial against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffunnierinspanish%2Frust-vfd-controller-over-serial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial
[INFO] finished tweaking git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial
[INFO] tweaked toml for git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing funnierinspanish/rust-vfd-controller-over-serial against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffunnierinspanish%2Frust-vfd-controller-over-serial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial
[INFO] finished tweaking git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial
[INFO] tweaked toml for git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/funnierinspanish/rust-vfd-controller-over-serial 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e
[INFO] running `Command { std: "docker" "start" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling unescaper v0.1.8
[INFO] [stderr]    Compiling serialport v4.8.1
[INFO] [stderr]    Compiling vfd-dsp-v9fb-over-serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `write_text_truncate` is never used
[INFO] [stdout]    --> src/main.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl BirchVfd {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn write_text_truncate(&mut self, text: &str) -> Result<(), io::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 8.18s
[INFO] running `Command { std: "docker" "inspect" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling vfd-dsp-v9fb-over-serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `write_text_truncate` is never used
[INFO] [stdout]    --> src/main.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl BirchVfd {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn write_text_truncate(&mut self, text: &str) -> Result<(), io::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: method `write_text_truncate` is never used
[INFO] [stderr]    --> src/main.rs:149:12
[INFO] [stderr]     |
[INFO] [stderr]  25 | impl BirchVfd {
[INFO] [stderr]     | ------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 149 |     pub fn write_text_truncate(&mut self, text: &str) -> Result<(), io::Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `vfd-dsp-v9fb-over-serial` (bin "vfd-dsp-v9fb-over-serial" test) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/build/vfd-dsp-v9fb-over-serial/5eed1da7179b4f31/out/vfd_dsp_v9fb_over_serial-5eed1da7179b4f31)
[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" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e", kill_on_drop: false }`
[INFO] [stdout] 4296abd2c35f829fb505626e16c21a8b0ca947645fd18b6f2edfca41d1f4308e