[INFO] updating cached repository AdamHarries/task_opencl
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AdamHarries/task_opencl
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AdamHarries/task_opencl" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/AdamHarries/task_opencl"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/AdamHarries/task_opencl'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AdamHarries/task_opencl" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/AdamHarries/task_opencl"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/AdamHarries/task_opencl'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d68f84960013c215289c9a5a1631f9a393b1420d
[INFO] sha for GitHub repo AdamHarries/task_opencl: d68f84960013c215289c9a5a1631f9a393b1420d
[INFO] validating manifest of AdamHarries/task_opencl on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AdamHarries/task_opencl on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AdamHarries/task_opencl
[INFO] finished frobbing AdamHarries/task_opencl
[INFO] frobbed toml for AdamHarries/task_opencl written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/AdamHarries/task_opencl/Cargo.toml
[INFO] started frobbing AdamHarries/task_opencl
[INFO] finished frobbing AdamHarries/task_opencl
[INFO] frobbed toml for AdamHarries/task_opencl written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/AdamHarries/task_opencl/Cargo.toml
[INFO] crate AdamHarries/task_opencl already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/AdamHarries/task_opencl/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/AdamHarries/rust-opencl.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/AdamHarries/rust-opencl.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking AdamHarries/task_opencl against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-0/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/AdamHarries/task_opencl:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ab390d444ba99fb21e99b379465f2f0aac32581077e0e239237fed9bc0a9c6b9
[INFO] running `"docker" "start" "-a" "ab390d444ba99fb21e99b379465f2f0aac32581077e0e239237fed9bc0a9c6b9"`
[INFO] [stderr]     Checking opencl v0.3.0-dev (https://github.com/AdamHarries/rust-opencl.git#f98b4a4c)
[INFO] [stderr]     Checking task-opencl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bin/queue.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for i in 0..queue_length {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_from_slice`
[INFO] [stderr]   --> src/bin/queue.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn string_from_slice<T: fmt::Display>(slice: &[T]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bin/queue.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for i in 0..queue_length {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_from_slice`
[INFO] [stderr]   --> src/bin/queue.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn string_from_slice<T: fmt::Display>(slice: &[T]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "ab390d444ba99fb21e99b379465f2f0aac32581077e0e239237fed9bc0a9c6b9"`
[INFO] running `"docker" "rm" "-f" "ab390d444ba99fb21e99b379465f2f0aac32581077e0e239237fed9bc0a9c6b9"`
[INFO] [stdout] ab390d444ba99fb21e99b379465f2f0aac32581077e0e239237fed9bc0a9c6b9