[INFO] updating cached repository jamwaffles/pi_cube
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jamwaffles/pi_cube
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jamwaffles/pi_cube" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jamwaffles/pi_cube"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jamwaffles/pi_cube'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jamwaffles/pi_cube" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jamwaffles/pi_cube"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jamwaffles/pi_cube'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c34baf72d07ede2f689171998b057d06106fe730
[INFO] sha for GitHub repo jamwaffles/pi_cube: c34baf72d07ede2f689171998b057d06106fe730
[INFO] validating manifest of jamwaffles/pi_cube 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 jamwaffles/pi_cube 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 jamwaffles/pi_cube
[INFO] finished frobbing jamwaffles/pi_cube
[INFO] frobbed toml for jamwaffles/pi_cube written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jamwaffles/pi_cube/Cargo.toml
[INFO] started frobbing jamwaffles/pi_cube
[INFO] finished frobbing jamwaffles/pi_cube
[INFO] frobbed toml for jamwaffles/pi_cube written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jamwaffles/pi_cube/Cargo.toml
[INFO] crate jamwaffles/pi_cube 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking jamwaffles/pi_cube 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/jamwaffles/pi_cube:/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] e42799ca17e26aacd6ec92e19aeab5673f2da536d2e6f910227a2b5716753eeb
[INFO] running `"docker" "start" "-a" "e42799ca17e26aacd6ec92e19aeab5673f2da536d2e6f910227a2b5716753eeb"`
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking nix v0.6.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking apa106_spi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `fire`
[INFO] [stderr]  --> src/patterns.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn fire(cube: &mut Cube4) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fire`
[INFO] [stderr]  --> src/patterns.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn fire(cube: &mut Cube4) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `"docker" "inspect" "e42799ca17e26aacd6ec92e19aeab5673f2da536d2e6f910227a2b5716753eeb"`
[INFO] running `"docker" "rm" "-f" "e42799ca17e26aacd6ec92e19aeab5673f2da536d2e6f910227a2b5716753eeb"`
[INFO] [stdout] e42799ca17e26aacd6ec92e19aeab5673f2da536d2e6f910227a2b5716753eeb