[INFO] crate gate_build 0.6.2 is already in cache
[INFO] extracting crate gate_build 0.6.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/gate_build/0.6.2
[INFO] extracting crate gate_build 0.6.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gate_build/0.6.2
[INFO] validating manifest of gate_build-0.6.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gate_build-0.6.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gate_build-0.6.2
[INFO] finished frobbing gate_build-0.6.2
[INFO] frobbed toml for gate_build-0.6.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/gate_build/0.6.2/Cargo.toml
[INFO] started frobbing gate_build-0.6.2
[INFO] finished frobbing gate_build-0.6.2
[INFO] frobbed toml for gate_build-0.6.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gate_build/0.6.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gate_build-0.6.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gate_build/0.6.2:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ef688c743268c0bd771b78d24caee804a052e98151016ec2264661572f53aecd
[INFO] running `"docker" "start" "-a" "ef688c743268c0bd771b78d24caee804a052e98151016ec2264661572f53aecd"`
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]    Compiling gate_build v0.6.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/atlas.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |             let mut out_color = *sprite.get_pixel(src_rect.pos.1 + col, src_rect.pos.0 + row);
[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 19.03s
[INFO] running `"docker" "inspect" "ef688c743268c0bd771b78d24caee804a052e98151016ec2264661572f53aecd"`
[INFO] running `"docker" "rm" "-f" "ef688c743268c0bd771b78d24caee804a052e98151016ec2264661572f53aecd"`
[INFO] [stdout] ef688c743268c0bd771b78d24caee804a052e98151016ec2264661572f53aecd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gate_build/0.6.2:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2aff670e6103ed8d7b6e21e1924da9dc24e83a5faadd9c386f38d97375bf0782
[INFO] running `"docker" "start" "-a" "2aff670e6103ed8d7b6e21e1924da9dc24e83a5faadd9c386f38d97375bf0782"`
[INFO] [stderr]    Compiling gate_build v0.6.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/atlas.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |             let mut out_color = *sprite.get_pixel(src_rect.pos.1 + col, src_rect.pos.0 + row);
[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 1.42s
[INFO] running `"docker" "inspect" "2aff670e6103ed8d7b6e21e1924da9dc24e83a5faadd9c386f38d97375bf0782"`
[INFO] running `"docker" "rm" "-f" "2aff670e6103ed8d7b6e21e1924da9dc24e83a5faadd9c386f38d97375bf0782"`
[INFO] [stdout] 2aff670e6103ed8d7b6e21e1924da9dc24e83a5faadd9c386f38d97375bf0782
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gate_build/0.6.2:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 951026ef107b05c6d638a39eb4643a851556d721362455d498d8af29e99fe23d
[INFO] running `"docker" "start" "-a" "951026ef107b05c6d638a39eb4643a851556d721362455d498d8af29e99fe23d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gate_build-4115f1cc7797bb10
[INFO] [stderr]    Doc-tests gate_build
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "951026ef107b05c6d638a39eb4643a851556d721362455d498d8af29e99fe23d"`
[INFO] running `"docker" "rm" "-f" "951026ef107b05c6d638a39eb4643a851556d721362455d498d8af29e99fe23d"`
[INFO] [stdout] 951026ef107b05c6d638a39eb4643a851556d721362455d498d8af29e99fe23d