[INFO] fetching crate rust-usbtmc 0.1.2...
[INFO] testing rust-usbtmc-0.1.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate rust-usbtmc 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust-usbtmc 0.1.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate rust-usbtmc 0.1.2
[INFO] finished tweaking crates.io crate rust-usbtmc 0.1.2
[INFO] tweaked toml for crates.io crate rust-usbtmc 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rust-usbtmc 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0e99e5af62b2d1e31ced0fa1113fa9e9dc1ca5ac6fcd18fb051205a7c1da8a8
[INFO] running `Command { std: "docker" "start" "-a" "e0e99e5af62b2d1e31ced0fa1113fa9e9dc1ca5ac6fcd18fb051205a7c1da8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e99e5af62b2d1e31ced0fa1113fa9e9dc1ca5ac6fcd18fb051205a7c1da8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e99e5af62b2d1e31ced0fa1113fa9e9dc1ca5ac6fcd18fb051205a7c1da8a8", kill_on_drop: false }`
[INFO] [stdout] e0e99e5af62b2d1e31ced0fa1113fa9e9dc1ca5ac6fcd18fb051205a7c1da8a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b733b3c0ad178eb7e8229d706a2c6e203bcb35348426682215a6c3668062a13b
[INFO] running `Command { std: "docker" "start" "-a" "b733b3c0ad178eb7e8229d706a2c6e203bcb35348426682215a6c3668062a13b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling rusb v0.8.0
[INFO] [stderr]    Compiling libusb1-sys v0.5.0
[INFO] [stderr]    Compiling rust-usbtmc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "b733b3c0ad178eb7e8229d706a2c6e203bcb35348426682215a6c3668062a13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b733b3c0ad178eb7e8229d706a2c6e203bcb35348426682215a6c3668062a13b", kill_on_drop: false }`
[INFO] [stdout] b733b3c0ad178eb7e8229d706a2c6e203bcb35348426682215a6c3668062a13b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06a12c24175df0b734abf790a3e29edd88ca630d277b94b4e0a431561a611a84
[INFO] running `Command { std: "docker" "start" "-a" "06a12c24175df0b734abf790a3e29edd88ca630d277b94b4e0a431561a611a84", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-usbtmc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "06a12c24175df0b734abf790a3e29edd88ca630d277b94b4e0a431561a611a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a12c24175df0b734abf790a3e29edd88ca630d277b94b4e0a431561a611a84", kill_on_drop: false }`
[INFO] [stdout] 06a12c24175df0b734abf790a3e29edd88ca630d277b94b4e0a431561a611a84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 447f1e21acec18b0c32d57c962350653b1b57ffae0e7ffe9284d1064bf82b820
[INFO] running `Command { std: "docker" "start" "-a" "447f1e21acec18b0c32d57c962350653b1b57ffae0e7ffe9284d1064bf82b820", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_usbtmc-ca7166678565d27e)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_usbtmc-b34c8cac5cbf1a8c)
[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] [stderr]    Doc-tests rust-usbtmc
[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" "447f1e21acec18b0c32d57c962350653b1b57ffae0e7ffe9284d1064bf82b820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447f1e21acec18b0c32d57c962350653b1b57ffae0e7ffe9284d1064bf82b820", kill_on_drop: false }`
[INFO] [stdout] 447f1e21acec18b0c32d57c962350653b1b57ffae0e7ffe9284d1064bf82b820