[INFO] crate pack_2048 0.4.4 is already in cache
[INFO] extracting crate pack_2048 0.4.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/pack_2048/0.4.4
[INFO] extracting crate pack_2048 0.4.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pack_2048/0.4.4
[INFO] validating manifest of pack_2048-0.4.4 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 pack_2048-0.4.4 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 pack_2048-0.4.4
[INFO] finished frobbing pack_2048-0.4.4
[INFO] frobbed toml for pack_2048-0.4.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/pack_2048/0.4.4/Cargo.toml
[INFO] started frobbing pack_2048-0.4.4
[INFO] finished frobbing pack_2048-0.4.4
[INFO] frobbed toml for pack_2048-0.4.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pack_2048/0.4.4/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pack_2048-0.4.4 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-1/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/pack_2048/0.4.4:/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] 600b42c2127c6d742ac9502a359dfcf06eabc73c8d2a5e8fa558451b2306c690
[INFO] running `"docker" "start" "-a" "600b42c2127c6d742ac9502a359dfcf06eabc73c8d2a5e8fa558451b2306c690"`
[INFO] [stderr]    Compiling pack_2048 v0.4.4 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         for mut row in &mut board.iter_mut() {
[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/lib.rs:165:13
[INFO] [stderr]     |
[INFO] [stderr] 165 |         for mut row in &mut board.iter_mut() {
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "600b42c2127c6d742ac9502a359dfcf06eabc73c8d2a5e8fa558451b2306c690"`
[INFO] running `"docker" "rm" "-f" "600b42c2127c6d742ac9502a359dfcf06eabc73c8d2a5e8fa558451b2306c690"`
[INFO] [stdout] 600b42c2127c6d742ac9502a359dfcf06eabc73c8d2a5e8fa558451b2306c690
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/pack_2048/0.4.4:/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] 759a2d264e9e93c5cdcc9682fceda9161738c1072bddb1391d3555585222d65b
[INFO] running `"docker" "start" "-a" "759a2d264e9e93c5cdcc9682fceda9161738c1072bddb1391d3555585222d65b"`
[INFO] [stderr]    Compiling pack_2048 v0.4.4 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         for mut row in &mut board.iter_mut() {
[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/lib.rs:165:13
[INFO] [stderr]     |
[INFO] [stderr] 165 |         for mut row in &mut board.iter_mut() {
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "759a2d264e9e93c5cdcc9682fceda9161738c1072bddb1391d3555585222d65b"`
[INFO] running `"docker" "rm" "-f" "759a2d264e9e93c5cdcc9682fceda9161738c1072bddb1391d3555585222d65b"`
[INFO] [stdout] 759a2d264e9e93c5cdcc9682fceda9161738c1072bddb1391d3555585222d65b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/pack_2048/0.4.4:/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] 7c66cece51bd89f09eb776a974958390a0e45ce5959d9a6318db9f3e371a5c73
[INFO] running `"docker" "start" "-a" "7c66cece51bd89f09eb776a974958390a0e45ce5959d9a6318db9f3e371a5c73"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pack_2048-9a4e72b59b1b9f73
[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] [stderr]      Running /opt/crater/target/debug/deps/jocors-9842a65276e12553
[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] [stderr]      Running /opt/crater/target/debug/deps/ptf8-9088819f56dffe6b
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tests-962a5f8b2afc7f9c
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests pack_2048
[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 2 tests
[INFO] [stdout] test core::create_gamestate ... ok
[INFO] [stdout] test core::top_row_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] running `"docker" "inspect" "7c66cece51bd89f09eb776a974958390a0e45ce5959d9a6318db9f3e371a5c73"`
[INFO] running `"docker" "rm" "-f" "7c66cece51bd89f09eb776a974958390a0e45ce5959d9a6318db9f3e371a5c73"`
[INFO] [stdout] 7c66cece51bd89f09eb776a974958390a0e45ce5959d9a6318db9f3e371a5c73