[INFO] updating cached repository WLBF/static-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WLBF/static-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WLBF/static-server" "work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WLBF/static-server" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/WLBF/static-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/WLBF/static-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92499a159f8ca8aa948ddf2ae9f1815c37d44894
[INFO] sha for GitHub repo WLBF/static-server: 92499a159f8ca8aa948ddf2ae9f1815c37d44894
[INFO] validating manifest of WLBF/static-server 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 WLBF/static-server 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 WLBF/static-server
[INFO] finished frobbing WLBF/static-server
[INFO] frobbed toml for WLBF/static-server written to work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server/Cargo.toml
[INFO] started frobbing WLBF/static-server
[INFO] finished frobbing WLBF/static-server
[INFO] frobbed toml for WLBF/static-server written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/WLBF/static-server/Cargo.toml
[INFO] crate WLBF/static-server 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 WLBF/static-server 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server:/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] 19e19d25d3a1f71b221fda892fa7c070cd0cb39eaadc3956bc4e03b1768b3b46
[INFO] running `"docker" "start" "-a" "19e19d25d3a1f71b221fda892fa7c070cd0cb39eaadc3956bc4e03b1768b3b46"`
[INFO] [stderr]    Compiling static-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 let mut path = dir.join(uri.strip_prefix("/").unwrap());
[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 1.65s
[INFO] running `"docker" "inspect" "19e19d25d3a1f71b221fda892fa7c070cd0cb39eaadc3956bc4e03b1768b3b46"`
[INFO] running `"docker" "rm" "-f" "19e19d25d3a1f71b221fda892fa7c070cd0cb39eaadc3956bc4e03b1768b3b46"`
[INFO] [stdout] 19e19d25d3a1f71b221fda892fa7c070cd0cb39eaadc3956bc4e03b1768b3b46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server:/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] 1a924de81aa63a6f3ac783a2e69971ecdb92693b5631cc0aed77b1d13aba7d55
[INFO] running `"docker" "start" "-a" "1a924de81aa63a6f3ac783a2e69971ecdb92693b5631cc0aed77b1d13aba7d55"`
[INFO] [stderr]    Compiling static-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 let mut path = dir.join(uri.strip_prefix("/").unwrap());
[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 0.83s
[INFO] running `"docker" "inspect" "1a924de81aa63a6f3ac783a2e69971ecdb92693b5631cc0aed77b1d13aba7d55"`
[INFO] running `"docker" "rm" "-f" "1a924de81aa63a6f3ac783a2e69971ecdb92693b5631cc0aed77b1d13aba7d55"`
[INFO] [stdout] 1a924de81aa63a6f3ac783a2e69971ecdb92693b5631cc0aed77b1d13aba7d55
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/WLBF/static-server:/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] 43cf48d91db3383b5d2d52888200b84fd406e55005ca3d67d80138047f2826f4
[INFO] running `"docker" "start" "-a" "43cf48d91db3383b5d2d52888200b84fd406e55005ca3d67d80138047f2826f4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/static_server-770230d09dfb69e6
[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" "43cf48d91db3383b5d2d52888200b84fd406e55005ca3d67d80138047f2826f4"`
[INFO] running `"docker" "rm" "-f" "43cf48d91db3383b5d2d52888200b84fd406e55005ca3d67d80138047f2826f4"`
[INFO] [stdout] 43cf48d91db3383b5d2d52888200b84fd406e55005ca3d67d80138047f2826f4