[INFO] updating cached repository deagahelio/sws
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/deagahelio/sws
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/deagahelio/sws" "work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/deagahelio/sws" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deagahelio/sws"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deagahelio/sws'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 33a2c9359c4e826642a9c419bf0f220ccb5c7789
[INFO] sha for GitHub repo deagahelio/sws: 33a2c9359c4e826642a9c419bf0f220ccb5c7789
[INFO] validating manifest of deagahelio/sws 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 deagahelio/sws 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 deagahelio/sws
[INFO] finished frobbing deagahelio/sws
[INFO] frobbed toml for deagahelio/sws written to work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws/Cargo.toml
[INFO] started frobbing deagahelio/sws
[INFO] finished frobbing deagahelio/sws
[INFO] frobbed toml for deagahelio/sws written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deagahelio/sws/Cargo.toml
[INFO] crate deagahelio/sws already has a lockfile, it will not be regenerated
[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 deagahelio/sws against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a9602543b05fa0969e8906f6a8d3fc86854ad95c2fb01f3b0cb39f1efa20abcd
[INFO] running `"docker" "start" "-a" "a9602543b05fa0969e8906f6a8d3fc86854ad95c2fb01f3b0cb39f1efa20abcd"`
[INFO] [stderr]    Compiling try-exit v1.0.0
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6 (https://github.com/abonander/mime_guess?rev=48d97bd#48d97bda)
[INFO] [stderr]    Compiling tiny_http v0.6.0
[INFO] [stderr]    Compiling sws v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut file = File::open(PATH_404);
[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 6.07s
[INFO] running `"docker" "inspect" "a9602543b05fa0969e8906f6a8d3fc86854ad95c2fb01f3b0cb39f1efa20abcd"`
[INFO] running `"docker" "rm" "-f" "a9602543b05fa0969e8906f6a8d3fc86854ad95c2fb01f3b0cb39f1efa20abcd"`
[INFO] [stdout] a9602543b05fa0969e8906f6a8d3fc86854ad95c2fb01f3b0cb39f1efa20abcd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a5c100eda90b1c20c8e8a372e40f6acdce63fe0788b063d236a97ea981f09c1
[INFO] running `"docker" "start" "-a" "5a5c100eda90b1c20c8e8a372e40f6acdce63fe0788b063d236a97ea981f09c1"`
[INFO] [stderr]    Compiling sws v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut file = File::open(PATH_404);
[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 0.67s
[INFO] running `"docker" "inspect" "5a5c100eda90b1c20c8e8a372e40f6acdce63fe0788b063d236a97ea981f09c1"`
[INFO] running `"docker" "rm" "-f" "5a5c100eda90b1c20c8e8a372e40f6acdce63fe0788b063d236a97ea981f09c1"`
[INFO] [stdout] 5a5c100eda90b1c20c8e8a372e40f6acdce63fe0788b063d236a97ea981f09c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/deagahelio/sws:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f7bebcabb07d77491f561e020d7d89455faf79188688762b55a3f54f5258b95f
[INFO] running `"docker" "start" "-a" "f7bebcabb07d77491f561e020d7d89455faf79188688762b55a3f54f5258b95f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sws-b9b1874be6f5fd5f
[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" "f7bebcabb07d77491f561e020d7d89455faf79188688762b55a3f54f5258b95f"`
[INFO] running `"docker" "rm" "-f" "f7bebcabb07d77491f561e020d7d89455faf79188688762b55a3f54f5258b95f"`
[INFO] [stdout] f7bebcabb07d77491f561e020d7d89455faf79188688762b55a3f54f5258b95f