[INFO] fetching crate rusbmux 0.1.0...
[INFO] checking rusbmux-0.1.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate rusbmux 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rusbmux 0.1.0
[INFO] finished tweaking crates.io crate rusbmux 0.1.0
[INFO] tweaked toml for crates.io crate rusbmux 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusbmux 0.1.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusbmux 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-core v0.1.7
[INFO] [stderr]   Downloaded rusb v0.9.4
[INFO] [stderr]   Downloaded plist-macro v0.1.3
[INFO] [stderr]   Downloaded time-macros v0.2.25
[INFO] [stderr]   Downloaded time v0.3.45
[INFO] [stderr]   Downloaded plist v1.8.0
[INFO] [stderr]   Downloaded libusb1-sys v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70480295e6e38ef720f3ecc1fc4db0062be8d03fb964d6a591f1acd8e15a54a9
[INFO] running `Command { std: "docker" "start" "-a" "70480295e6e38ef720f3ecc1fc4db0062be8d03fb964d6a591f1acd8e15a54a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70480295e6e38ef720f3ecc1fc4db0062be8d03fb964d6a591f1acd8e15a54a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70480295e6e38ef720f3ecc1fc4db0062be8d03fb964d6a591f1acd8e15a54a9", kill_on_drop: false }`
[INFO] [stdout] 70480295e6e38ef720f3ecc1fc4db0062be8d03fb964d6a591f1acd8e15a54a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b568e1f8c39a96842fe8a7d5dd8a705696c5d7bc543822b5ad75d507b491603b
[INFO] running `Command { std: "docker" "start" "-a" "b568e1f8c39a96842fe8a7d5dd8a705696c5d7bc543822b5ad75d507b491603b", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking time-core v0.1.7
[INFO] [stderr]    Compiling rusb v0.9.4
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]     Checking deranged v0.5.5
[INFO] [stderr]     Checking quick-xml v0.38.4
[INFO] [stderr]    Compiling cc v1.2.53
[INFO] [stderr]     Checking time v0.3.45
[INFO] [stderr]    Compiling libusb1-sys v0.7.0
[INFO] [stderr]     Checking plist v1.8.0
[INFO] [stderr]     Checking plist-macro v0.1.3
[INFO] [stderr]     Checking rusbmux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Cursor, Read},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Cursor, Read},
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "b568e1f8c39a96842fe8a7d5dd8a705696c5d7bc543822b5ad75d507b491603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b568e1f8c39a96842fe8a7d5dd8a705696c5d7bc543822b5ad75d507b491603b", kill_on_drop: false }`
[INFO] [stdout] b568e1f8c39a96842fe8a7d5dd8a705696c5d7bc543822b5ad75d507b491603b