[INFO] fetching crate usbenum 0.1.0...
[INFO] testing usbenum-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate usbenum 0.1.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate usbenum 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbenum 0.1.0
[INFO] finished tweaking crates.io crate usbenum 0.1.0
[INFO] tweaked toml for crates.io crate usbenum 0.1.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate crates.io crate usbenum 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7dc0e9aa762fb94748e16bb3850ec3a6af9daf877c20bd195ab39843496358e
[INFO] running `Command { std: "docker" "start" "-a" "d7dc0e9aa762fb94748e16bb3850ec3a6af9daf877c20bd195ab39843496358e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7dc0e9aa762fb94748e16bb3850ec3a6af9daf877c20bd195ab39843496358e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7dc0e9aa762fb94748e16bb3850ec3a6af9daf877c20bd195ab39843496358e", kill_on_drop: false }`
[INFO] [stdout] d7dc0e9aa762fb94748e16bb3850ec3a6af9daf877c20bd195ab39843496358e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6f176be9f31e46b5ab58a1868c2ace50638db78ded98b71110bf6f619d6cf37
[INFO] running `Command { std: "docker" "start" "-a" "a6f176be9f31e46b5ab58a1868c2ace50638db78ded98b71110bf6f619d6cf37", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling udev v0.6.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling usbenum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 15.56s
[INFO] running `Command { std: "docker" "inspect" "a6f176be9f31e46b5ab58a1868c2ace50638db78ded98b71110bf6f619d6cf37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f176be9f31e46b5ab58a1868c2ace50638db78ded98b71110bf6f619d6cf37", kill_on_drop: false }`
[INFO] [stdout] a6f176be9f31e46b5ab58a1868c2ace50638db78ded98b71110bf6f619d6cf37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c94077545b70f1c46beb16ea413d6249054b86cfae68d52fdd9225be7c6efa8a
[INFO] running `Command { std: "docker" "start" "-a" "c94077545b70f1c46beb16ea413d6249054b86cfae68d52fdd9225be7c6efa8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling usbenum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c94077545b70f1c46beb16ea413d6249054b86cfae68d52fdd9225be7c6efa8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94077545b70f1c46beb16ea413d6249054b86cfae68d52fdd9225be7c6efa8a", kill_on_drop: false }`
[INFO] [stdout] c94077545b70f1c46beb16ea413d6249054b86cfae68d52fdd9225be7c6efa8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a56bd6989ad41fe94400424056925bff03296718611165e86e3fab259108fc97
[INFO] running `Command { std: "docker" "start" "-a" "a56bd6989ad41fe94400424056925bff03296718611165e86e3fab259108fc97", kill_on_drop: false }`
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/usbenum-17dd7a8e297b986f)
[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 usbenum
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - list_connected_usb_drives (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a56bd6989ad41fe94400424056925bff03296718611165e86e3fab259108fc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a56bd6989ad41fe94400424056925bff03296718611165e86e3fab259108fc97", kill_on_drop: false }`
[INFO] [stdout] a56bd6989ad41fe94400424056925bff03296718611165e86e3fab259108fc97