[INFO] updating cached repository dhild/tanks
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dhild/tanks
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dhild/tanks" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/dhild/tanks"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/dhild/tanks'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dhild/tanks" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/dhild/tanks"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/dhild/tanks'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf50a698e4b3cda58f5d44f4089f2f02c6ab9a2a
[INFO] sha for GitHub repo dhild/tanks: cf50a698e4b3cda58f5d44f4089f2f02c6ab9a2a
[INFO] validating manifest of dhild/tanks on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dhild/tanks on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dhild/tanks
[INFO] finished frobbing dhild/tanks
[INFO] frobbed toml for dhild/tanks written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/dhild/tanks/Cargo.toml
[INFO] started frobbing dhild/tanks
[INFO] finished frobbing dhild/tanks
[INFO] frobbed toml for dhild/tanks written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/dhild/tanks/Cargo.toml
[INFO] crate dhild/tanks has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dhild/tanks against master#e2f221c75932de7a29845c8d6f1f73536ad00c41 for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-4/master#e2f221c75932de7a29845c8d6f1f73536ad00c41:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/dhild/tanks:/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" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] acd4b78404ebfbcd5fdb37f0b12f577ecc9ece32f808cfabfd07a9d048058ecc
[INFO] running `"docker" "start" "-a" "acd4b78404ebfbcd5fdb37f0b12f577ecc9ece32f808cfabfd07a9d048058ecc"`
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]     Checking shared_library v0.1.5
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking ticketed_lock v0.1.0
[INFO] [stderr]     Checking cgmath v0.12.0
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking gfx_core v0.6.1
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]     Checking x11-dl v2.13.0
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking tempfile v2.1.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking specs v0.8.1
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking flate2 v0.2.19
[INFO] [stderr]     Checking log4rs v0.6.3
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.3.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.8
[INFO] [stderr]     Checking wayland-client v0.7.8
[INFO] [stderr]     Checking wayland-kbd v0.6.3
[INFO] [stderr]     Checking wayland-window v0.4.4
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking gfx_device_gl v0.13.1
[INFO] [stderr]     Checking gfx v0.14.1
[INFO] [stderr]     Checking glutin v0.7.4
[INFO] [stderr]     Checking gfx_window_glutin v0.14.0
[INFO] [stderr]     Checking tanks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tank/control.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut tank = match tanks.get_mut(player.id()) {
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/tank/control.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut tank = match tanks.get_mut(player.id()) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 52.01s
[INFO] running `"docker" "inspect" "acd4b78404ebfbcd5fdb37f0b12f577ecc9ece32f808cfabfd07a9d048058ecc"`
[INFO] running `"docker" "rm" "-f" "acd4b78404ebfbcd5fdb37f0b12f577ecc9ece32f808cfabfd07a9d048058ecc"`
[INFO] [stdout] acd4b78404ebfbcd5fdb37f0b12f577ecc9ece32f808cfabfd07a9d048058ecc