[INFO] fetching crate usb-device 0.2.9...
[INFO] checking usb-device-0.2.9 against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043-1
[INFO] extracting crate usb-device 0.2.9 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate usb-device 0.2.9 on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usb-device 0.2.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate usb-device 0.2.9
[INFO] tweaked toml for crates.io crate usb-device 0.2.9 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt-parser v0.3.1
[INFO] [stderr]   Downloaded defmt-macros v0.3.2
[INFO] [stderr]   Downloaded defmt v0.3.2
[INFO] [stderr]   Downloaded rusb v0.9.1
[INFO] [stderr]   Downloaded libusb1-sys v0.6.4
[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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9abd94bf897280ccd2ec3539a45fa6dad354a22bc887be4c55fb7feed88ed2fc
[INFO] running `Command { std: "docker" "start" "-a" "9abd94bf897280ccd2ec3539a45fa6dad354a22bc887be4c55fb7feed88ed2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9abd94bf897280ccd2ec3539a45fa6dad354a22bc887be4c55fb7feed88ed2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9abd94bf897280ccd2ec3539a45fa6dad354a22bc887be4c55fb7feed88ed2fc", kill_on_drop: false }`
[INFO] [stdout] 9abd94bf897280ccd2ec3539a45fa6dad354a22bc887be4c55fb7feed88ed2fc
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95f68f76d87550ac3e49cfd30b89d662322c136376f26ef65edd1b5b48ba026a
[INFO] running `Command { std: "docker" "start" "-a" "95f68f76d87550ac3e49cfd30b89d662322c136376f26ef65edd1b5b48ba026a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rusb v0.9.1
[INFO] [stderr]     Checking usb-device v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     struct DummyBus<'a> {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 202 |         a: &'a str,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ep` is never read
[INFO] [stdout]    --> src/lib.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |     struct DummyClass<'a, B: UsbBus> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 242 |         ep: crate::endpoint::EndpointIn<'a, B>,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:246:12
[INFO] [stdout]     |
[INFO] [stdout] 246 |         fn new(alloc: &UsbBusAllocator<B>) -> DummyClass<'_, B> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libusb1-sys v0.6.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     struct DummyBus<'a> {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 202 |         a: &'a str,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ep` is never read
[INFO] [stdout]    --> src/lib.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |     struct DummyClass<'a, B: UsbBus> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 242 |         ep: crate::endpoint::EndpointIn<'a, B>,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:246:12
[INFO] [stdout]     |
[INFO] [stdout] 246 |         fn new(alloc: &UsbBusAllocator<B>) -> DummyClass<'_, B> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.90s
[INFO] running `Command { std: "docker" "inspect" "95f68f76d87550ac3e49cfd30b89d662322c136376f26ef65edd1b5b48ba026a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95f68f76d87550ac3e49cfd30b89d662322c136376f26ef65edd1b5b48ba026a", kill_on_drop: false }`
[INFO] [stdout] 95f68f76d87550ac3e49cfd30b89d662322c136376f26ef65edd1b5b48ba026a