[INFO] updating cached repository csherratt/rplace.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/csherratt/rplace.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/csherratt/rplace.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/csherratt/rplace.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/csherratt/rplace.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/csherratt/rplace.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aba62a04dd06ac149d6d565b0b9c4302d10d699a
[INFO] sha for GitHub repo csherratt/rplace.rs: aba62a04dd06ac149d6d565b0b9c4302d10d699a
[INFO] validating manifest of csherratt/rplace.rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of csherratt/rplace.rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing csherratt/rplace.rs
[INFO] finished frobbing csherratt/rplace.rs
[INFO] frobbed toml for csherratt/rplace.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs/Cargo.toml
[INFO] started frobbing csherratt/rplace.rs
[INFO] finished frobbing csherratt/rplace.rs
[INFO] frobbed toml for csherratt/rplace.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/csherratt/rplace.rs/Cargo.toml
[INFO] crate csherratt/rplace.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing csherratt/rplace.rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b999d5f887c96e48f2c0d83d512057df04cfd35494f73bce08c4be724ca37a62
[INFO] running `"docker" "start" "-a" "b999d5f887c96e48f2c0d83d512057df04cfd35494f73bce08c4be724ca37a62"`
[INFO] [stderr]    Compiling serde v0.9.14
[INFO] [stderr]    Compiling vec_map v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling cgmath v0.13.0
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling x11-dl v2.13.0
[INFO] [stderr]    Compiling gfx v0.14.1
[INFO] [stderr]    Compiling gfx_device_gl v0.13.0
[INFO] [stderr]    Compiling clap v2.23.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling target_build_utils v0.3.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.7.8
[INFO] [stderr]    Compiling wayland-client v0.7.8
[INFO] [stderr]    Compiling wayland-window v0.4.4
[INFO] [stderr]    Compiling wayland-kbd v0.6.3
[INFO] [stderr]    Compiling winit v0.5.11
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling gfx_window_glutin v0.14.0
[INFO] [stderr]    Compiling rplace-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut tile = latest.entry(tile_key)
[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/main.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |             let mut tile = tiles.entry(tile_key).or_insert_with(Vec::new);
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:177:13
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let mut tile = tiles.entry(key).or_insert_with(Vec::new);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "b999d5f887c96e48f2c0d83d512057df04cfd35494f73bce08c4be724ca37a62"`
[INFO] running `"docker" "rm" "-f" "b999d5f887c96e48f2c0d83d512057df04cfd35494f73bce08c4be724ca37a62"`
[INFO] [stdout] b999d5f887c96e48f2c0d83d512057df04cfd35494f73bce08c4be724ca37a62
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 04f3f676f36f9ba833564bf578994439907655f7fab2de9af460dd5ba546ca85
[INFO] running `"docker" "start" "-a" "04f3f676f36f9ba833564bf578994439907655f7fab2de9af460dd5ba546ca85"`
[INFO] [stderr]    Compiling rplace-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |             let mut tile = latest.entry(tile_key)
[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/main.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |             let mut tile = tiles.entry(tile_key).or_insert_with(Vec::new);
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:177:13
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let mut tile = tiles.entry(key).or_insert_with(Vec::new);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "04f3f676f36f9ba833564bf578994439907655f7fab2de9af460dd5ba546ca85"`
[INFO] running `"docker" "rm" "-f" "04f3f676f36f9ba833564bf578994439907655f7fab2de9af460dd5ba546ca85"`
[INFO] [stdout] 04f3f676f36f9ba833564bf578994439907655f7fab2de9af460dd5ba546ca85
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/csherratt/rplace.rs:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 59adf68da0fc77c58c615c2acdae458b1bc194c3a0ae426e3b88de8162222560
[INFO] running `"docker" "start" "-a" "59adf68da0fc77c58c615c2acdae458b1bc194c3a0ae426e3b88de8162222560"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rplace_rs-c627132276d9abad
[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" "59adf68da0fc77c58c615c2acdae458b1bc194c3a0ae426e3b88de8162222560"`
[INFO] running `"docker" "rm" "-f" "59adf68da0fc77c58c615c2acdae458b1bc194c3a0ae426e3b88de8162222560"`
[INFO] [stdout] 59adf68da0fc77c58c615c2acdae458b1bc194c3a0ae426e3b88de8162222560