[INFO] updating cached repository werner/trezorrs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/werner/trezorrs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/werner/trezorrs" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/werner/trezorrs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/werner/trezorrs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/werner/trezorrs" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/werner/trezorrs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/werner/trezorrs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 37995e5eba62eaff454686c2b28cc162cb69b8a9
[INFO] sha for GitHub repo werner/trezorrs: 37995e5eba62eaff454686c2b28cc162cb69b8a9
[INFO] validating manifest of werner/trezorrs on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of werner/trezorrs on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing werner/trezorrs
[INFO] finished frobbing werner/trezorrs
[INFO] frobbed toml for werner/trezorrs written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/werner/trezorrs/Cargo.toml
[INFO] started frobbing werner/trezorrs
[INFO] finished frobbing werner/trezorrs
[INFO] frobbed toml for werner/trezorrs written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/werner/trezorrs/Cargo.toml
[INFO] crate werner/trezorrs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking werner/trezorrs against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/werner/trezorrs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f7add790664fcc55e75c755f482fbd890c11e73e3c1bea130e509a6048a9c3f4
[INFO] running `"docker" "start" "-a" "f7add790664fcc55e75c755f482fbd890c11e73e3c1bea130e509a6048a9c3f4"`
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking usbtrezor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `claimed`
[INFO] [stderr]   --> src/main.rs:45:19
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if let Ok(claimed) = result {
[INFO] [stderr]    |                   ^^^^^^^ help: consider prefixing with an underscore: `_claimed`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INTERFACE`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const INTERFACE: u8 = 0x000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: unused variable: `claimed`
[INFO] [stderr]   --> src/main.rs:45:19
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if let Ok(claimed) = result {
[INFO] [stderr]    |                   ^^^^^^^ help: consider prefixing with an underscore: `_claimed`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRODUCT_FIRMWARE`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const PRODUCT_FIRMWARE: u8 = 0x0001;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: constant item is never used: `INTERFACE`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const INTERFACE: u8 = 0x000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRODUCT_FIRMWARE`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const PRODUCT_FIRMWARE: u8 = 0x0001;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         device_handle.release_interface(interface.number());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         device_handle.release_interface(interface.number());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `"docker" "inspect" "f7add790664fcc55e75c755f482fbd890c11e73e3c1bea130e509a6048a9c3f4"`
[INFO] running `"docker" "rm" "-f" "f7add790664fcc55e75c755f482fbd890c11e73e3c1bea130e509a6048a9c3f4"`
[INFO] [stdout] f7add790664fcc55e75c755f482fbd890c11e73e3c1bea130e509a6048a9c3f4