[INFO] cloning repository https://github.com/misson20000/transistor-serial-driver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/misson20000/transistor-serial-driver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisson20000%2Ftransistor-serial-driver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisson20000%2Ftransistor-serial-driver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d540cc8a62779418b9f176defbf846132d486f79
[INFO] testing misson20000/transistor-serial-driver against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisson20000%2Ftransistor-serial-driver" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/misson20000/transistor-serial-driver on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/misson20000/transistor-serial-driver
[INFO] finished tweaking git repo https://github.com/misson20000/transistor-serial-driver
[INFO] tweaked toml for git repo https://github.com/misson20000/transistor-serial-driver written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/misson20000/transistor-serial-driver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 937854db3a95966c72f90bb95f8e782d40d2f9e9be9a8734255ec054b7577e98
[INFO] running `Command { std: "docker" "start" "-a" "937854db3a95966c72f90bb95f8e782d40d2f9e9be9a8734255ec054b7577e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "937854db3a95966c72f90bb95f8e782d40d2f9e9be9a8734255ec054b7577e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "937854db3a95966c72f90bb95f8e782d40d2f9e9be9a8734255ec054b7577e98", kill_on_drop: false }`
[INFO] [stdout] 937854db3a95966c72f90bb95f8e782d40d2f9e9be9a8734255ec054b7577e98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2ec7e64ab2eb43c334d485f0b6643248a47250ea7e3735207a8cbf54c4b0914
[INFO] running `Command { std: "docker" "start" "-a" "c2ec7e64ab2eb43c334d485f0b6643248a47250ea7e3735207a8cbf54c4b0914", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]    Compiling bit-set v0.2.0
[INFO] [stderr]    Compiling libusb v0.3.0
[INFO] [stderr]    Compiling serial_driver_output_only v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stdout]   |                       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let device_desc = try!(device.device_descriptor());
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.25s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2ec7e64ab2eb43c334d485f0b6643248a47250ea7e3735207a8cbf54c4b0914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ec7e64ab2eb43c334d485f0b6643248a47250ea7e3735207a8cbf54c4b0914", kill_on_drop: false }`
[INFO] [stdout] c2ec7e64ab2eb43c334d485f0b6643248a47250ea7e3735207a8cbf54c4b0914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17273409b5d79613287ebcaa39309cac1f54bab3277bb2a16e00693f97e74f55
[INFO] running `Command { std: "docker" "start" "-a" "17273409b5d79613287ebcaa39309cac1f54bab3277bb2a16e00693f97e74f55", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial_driver_output_only v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stdout]   |                       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/main.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let device_desc = try!(device.device_descriptor());
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/serial_driver_output_only-5d7e3a3537e9913f)
[INFO] running `Command { std: "docker" "inspect" "17273409b5d79613287ebcaa39309cac1f54bab3277bb2a16e00693f97e74f55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17273409b5d79613287ebcaa39309cac1f54bab3277bb2a16e00693f97e74f55", kill_on_drop: false }`
[INFO] [stdout] 17273409b5d79613287ebcaa39309cac1f54bab3277bb2a16e00693f97e74f55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 362725f85bf356c917c2d890fd0b3c52ff42002f195c350134673c3ae97dadff
[INFO] running `Command { std: "docker" "start" "-a" "362725f85bf356c917c2d890fd0b3c52ff42002f195c350134673c3ae97dadff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> src/main.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stderr]   |                       ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> src/main.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |         let device_desc = try!(device.device_descriptor());
[INFO] [stderr]   |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for mut device in try!(context.devices()).iter() {
[INFO] [stderr]   |         ----^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serial_driver_output_only` (bin "serial_driver_output_only" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.71s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/serial_driver_output_only-5d7e3a3537e9913f)
[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" "362725f85bf356c917c2d890fd0b3c52ff42002f195c350134673c3ae97dadff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362725f85bf356c917c2d890fd0b3c52ff42002f195c350134673c3ae97dadff", kill_on_drop: false }`
[INFO] [stdout] 362725f85bf356c917c2d890fd0b3c52ff42002f195c350134673c3ae97dadff