[INFO] fetching crate atsamd-usb-host 0.2.1...
[INFO] checking atsamd-usb-host-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate atsamd-usb-host 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate atsamd-usb-host 0.2.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atsamd-usb-host 0.2.1
[INFO] finished tweaking crates.io crate atsamd-usb-host 0.2.1
[INFO] tweaked toml for crates.io crate atsamd-usb-host 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] [stderr]       Adding aligned v0.3.5 (latest: v0.4.2)
[INFO] [stderr]       Adding as-slice v0.1.5 (latest: v0.2.1)
[INFO] [stderr]       Adding atsamd-hal v0.7.4 (latest: v0.17.0)
[INFO] [stderr]       Adding atsamd21e18a v0.6.0 (latest: v0.7.1)
[INFO] [stderr]       Adding atsamd21g18a v0.6.0 (latest: v0.7.1)
[INFO] [stderr]       Adding atsamd51g19a v0.6.0 (latest: v0.7.1)
[INFO] [stderr]       Adding atsamd51j19a v0.6.0 (latest: v0.7.1)
[INFO] [stderr]       Adding atsamd51j20a v0.6.0 (latest: v0.7.1)
[INFO] [stderr]       Adding bare-metal v0.2.5 (latest: v1.0.0)
[INFO] [stderr]       Adding bitfield v0.13.2 (latest: v0.16.1)
[INFO] [stderr]       Adding cortex-m v0.6.7 (latest: v0.7.7)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.1.0)
[INFO] [stderr]       Adding generic-array v0.13.3 (latest: v1.1.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding nb v0.1.3 (latest: v1.1.0)
[INFO] [stderr]       Adding paste v0.1.18 (latest: v1.0.15)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rustc_version v0.2.3 (latest: v0.4.1)
[INFO] [stderr]       Adding semver v0.9.0 (latest: v1.0.23)
[INFO] [stderr]       Adding semver-parser v0.7.0 (latest: v0.10.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded starb v0.3.1
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded usb-host v0.1.3
[INFO] [stderr]   Downloaded aligned v0.3.5
[INFO] [stderr]   Downloaded atsamd-hal v0.7.4
[INFO] [stderr]   Downloaded atsamd51g19a v0.6.0
[INFO] [stderr]   Downloaded atsamd51j20a v0.6.0
[INFO] [stderr]   Downloaded atsamd21g18a v0.6.0
[INFO] [stderr]   Downloaded atsamd51j19a v0.6.0
[INFO] [stderr]   Downloaded atsamd21e18a v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eca824abf7a55cc8e80dfa5a4f9c85a16b6d4a7b3ca6c36ac5c96933f573465b
[INFO] running `Command { std: "docker" "start" "-a" "eca824abf7a55cc8e80dfa5a4f9c85a16b6d4a7b3ca6c36ac5c96933f573465b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eca824abf7a55cc8e80dfa5a4f9c85a16b6d4a7b3ca6c36ac5c96933f573465b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca824abf7a55cc8e80dfa5a4f9c85a16b6d4a7b3ca6c36ac5c96933f573465b", kill_on_drop: false }`
[INFO] [stdout] eca824abf7a55cc8e80dfa5a4f9c85a16b6d4a7b3ca6c36ac5c96933f573465b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64b4676c550532a3be97624f8fcd689f34aaee2f8481a0bc45b10f6f1586a745
[INFO] running `Command { std: "docker" "start" "-a" "64b4676c550532a3be97624f8fcd689f34aaee2f8481a0bc45b10f6f1586a745", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling atsamd21e18a v0.6.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking starb v0.3.1
[INFO] [stderr]     Checking usb-host v0.1.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking atsamd-hal v0.7.4
[INFO] [stderr]     Checking atsamd-usb-host v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `bank1` is never read
[INFO] [stdout]    --> src/pipe.rs:722:9
[INFO] [stdout]     |
[INFO] [stdout] 720 | pub(crate) struct PipeDesc {
[INFO] [stdout]     |                   -------- field in this struct
[INFO] [stdout] 721 |     pub bank0: BankDesc,
[INFO] [stdout] 722 |     pub bank1: BankDesc,
[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` profile [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `Command { std: "docker" "inspect" "64b4676c550532a3be97624f8fcd689f34aaee2f8481a0bc45b10f6f1586a745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b4676c550532a3be97624f8fcd689f34aaee2f8481a0bc45b10f6f1586a745", kill_on_drop: false }`
[INFO] [stdout] 64b4676c550532a3be97624f8fcd689f34aaee2f8481a0bc45b10f6f1586a745