[INFO] fetching crate usb_enumeration 0.1.2...
[INFO] testing usb_enumeration-0.1.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate usb_enumeration 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate usb_enumeration 0.1.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usb_enumeration 0.1.2
[INFO] finished tweaking crates.io crate usb_enumeration 0.1.2
[INFO] tweaked toml for crates.io crate usb_enumeration 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4f0da9879592d4b6b8bed1aeb875bf79bcd21915e3de193032a20ea460ca147
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e4f0da9879592d4b6b8bed1aeb875bf79bcd21915e3de193032a20ea460ca147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4f0da9879592d4b6b8bed1aeb875bf79bcd21915e3de193032a20ea460ca147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f0da9879592d4b6b8bed1aeb875bf79bcd21915e3de193032a20ea460ca147", kill_on_drop: false }`
[INFO] [stdout] e4f0da9879592d4b6b8bed1aeb875bf79bcd21915e3de193032a20ea460ca147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1650d07b0b1cd7475bdfe6f2cc5dc8e8f5a3526ecd5efa8ad01352b2092f0bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b1650d07b0b1cd7475bdfe6f2cc5dc8e8f5a3526ecd5efa8ad01352b2092f0bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling udev v0.5.0
[INFO] [stderr]    Compiling usb_enumeration v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `tx_close`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     tx_close: Sender<()>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "b1650d07b0b1cd7475bdfe6f2cc5dc8e8f5a3526ecd5efa8ad01352b2092f0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1650d07b0b1cd7475bdfe6f2cc5dc8e8f5a3526ecd5efa8ad01352b2092f0bc", kill_on_drop: false }`
[INFO] [stdout] b1650d07b0b1cd7475bdfe6f2cc5dc8e8f5a3526ecd5efa8ad01352b2092f0bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeb26ef9a2c922455b0e6326ae526a01abc6526e3f10379fece11b43d7db511a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aeb26ef9a2c922455b0e6326ae526a01abc6526e3f10379fece11b43d7db511a", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `tx_close`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     tx_close: Sender<()>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling usb_enumeration v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `tx_close`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     tx_close: Sender<()>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "aeb26ef9a2c922455b0e6326ae526a01abc6526e3f10379fece11b43d7db511a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb26ef9a2c922455b0e6326ae526a01abc6526e3f10379fece11b43d7db511a", kill_on_drop: false }`
[INFO] [stdout] aeb26ef9a2c922455b0e6326ae526a01abc6526e3f10379fece11b43d7db511a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc723e8857115334822c525c6d203d0a58bd484937ddb99e169befa25c4c564b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc723e8857115334822c525c6d203d0a58bd484937ddb99e169befa25c4c564b", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `tx_close`
[INFO] [stderr]    --> src/lib.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     tx_close: Sender<()>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `usb_enumeration` (lib) generated 1 warning
[INFO] [stderr] warning: `usb_enumeration` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/usb_enumeration-f3234d6ab2d80ddc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_enumerate ... FAILED
[INFO] [stdout] test tests::test_subscribe has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "fc723e8857115334822c525c6d203d0a58bd484937ddb99e169befa25c4c564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc723e8857115334822c525c6d203d0a58bd484937ddb99e169befa25c4c564b", kill_on_drop: false }`
[INFO] [stdout] fc723e8857115334822c525c6d203d0a58bd484937ddb99e169befa25c4c564b