[INFO] updating cached repository https://github.com/BrendanBall/barrier-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cae539c0ec0e13b2aa33eed2e206b7b1e821fea3
[INFO] checking BrendanBall/barrier-rust against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendanBall%2Fbarrier-rust" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BrendanBall/barrier-rust on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BrendanBall/barrier-rust
[INFO] finished tweaking git repo https://github.com/BrendanBall/barrier-rust
[INFO] tweaked toml for git repo https://github.com/BrendanBall/barrier-rust written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/BrendanBall/barrier-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1692a8c64220e54c5c7d81f3bb69fd208ccbed985395659ee40a6e0f5fd6df6a
[INFO] running `"docker" "start" "-a" "1692a8c64220e54c5c7d81f3bb69fd208ccbed985395659ee40a6e0f5fd6df6a"`
[INFO] [stderr]     Checking ioctl-sys v0.5.2
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking uinput-sys v0.1.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]     Checking uinput v0.1.3
[INFO] [stderr]    Compiling hex-literal-impl v0.2.0
[INFO] [stderr]     Checking hex-literal v0.2.0
[INFO] [stderr]     Checking barrier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/input.rs:46:35
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn button_down(&mut self, id: u8) {
[INFO] [stderr]    |                                   ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/input.rs:51:33
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn button_up(&mut self, id: u8) {
[INFO] [stderr]    |                                 ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/input.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut device = uinput::open("/dev/uinput")
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `minimum`
[INFO] [stderr]   --> src/input.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     minimum: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `maximum`
[INFO] [stderr]   --> src/input.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     maximum: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `minimum` should have an upper case name
[INFO] [stderr]   --> src/input.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |         const minimum: i32 = 0;
[INFO] [stderr]    |               ^^^^^^^ help: convert the identifier to upper case: `MINIMUM`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/input.rs:46:35
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn button_down(&mut self, id: u8) {
[INFO] [stderr]    |                                   ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/input.rs:51:33
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn button_up(&mut self, id: u8) {
[INFO] [stderr]    |                                 ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/input.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut device = uinput::open("/dev/uinput")
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `minimum`
[INFO] [stderr]   --> src/input.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     minimum: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `maximum`
[INFO] [stderr]   --> src/input.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     maximum: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `minimum` should have an upper case name
[INFO] [stderr]   --> src/input.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |         const minimum: i32 = 0;
[INFO] [stderr]    |               ^^^^^^^ help: convert the identifier to upper case: `MINIMUM`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.98s
[INFO] running `"docker" "inspect" "1692a8c64220e54c5c7d81f3bb69fd208ccbed985395659ee40a6e0f5fd6df6a"`
[INFO] running `"docker" "rm" "-f" "1692a8c64220e54c5c7d81f3bb69fd208ccbed985395659ee40a6e0f5fd6df6a"`
[INFO] [stdout] 1692a8c64220e54c5c7d81f3bb69fd208ccbed985395659ee40a6e0f5fd6df6a