[INFO] updating cached repository sts10/capitalizer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sts10/capitalizer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sts10/capitalizer" "work/ex/beta-1.37-6/sources/1.36.0/gh/sts10/capitalizer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sts10/capitalizer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sts10/capitalizer" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sts10/capitalizer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sts10/capitalizer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54ed66546c5fe800598a301b93e236532575a952
[INFO] sha for GitHub repo sts10/capitalizer: 54ed66546c5fe800598a301b93e236532575a952
[INFO] validating manifest of sts10/capitalizer 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 sts10/capitalizer 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 sts10/capitalizer
[INFO] finished frobbing sts10/capitalizer
[INFO] frobbed toml for sts10/capitalizer written to work/ex/beta-1.37-6/sources/1.36.0/gh/sts10/capitalizer/Cargo.toml
[INFO] started frobbing sts10/capitalizer
[INFO] finished frobbing sts10/capitalizer
[INFO] frobbed toml for sts10/capitalizer written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sts10/capitalizer/Cargo.toml
[INFO] crate sts10/capitalizer 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 sts10/capitalizer 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/sts10/capitalizer:/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] a7a93226b8114680da773a8d23fd644ba9b2cb653be951096f6b768bcba6e00b
[INFO] running `"docker" "start" "-a" "a7a93226b8114680da773a8d23fd644ba9b2cb653be951096f6b768bcba6e00b"`
[INFO] [stderr]    Compiling capitalizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `downcase_this`
[INFO] [stderr]  --> src/downcase.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn downcase_this(s: String) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "a7a93226b8114680da773a8d23fd644ba9b2cb653be951096f6b768bcba6e00b"`
[INFO] running `"docker" "rm" "-f" "a7a93226b8114680da773a8d23fd644ba9b2cb653be951096f6b768bcba6e00b"`
[INFO] [stdout] a7a93226b8114680da773a8d23fd644ba9b2cb653be951096f6b768bcba6e00b
[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/sts10/capitalizer:/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] 16443047d6a3e9ec0425749da524c72eba432466e40593615196e797cb5121ed
[INFO] running `"docker" "start" "-a" "16443047d6a3e9ec0425749da524c72eba432466e40593615196e797cb5121ed"`
[INFO] [stderr]    Compiling capitalizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `downcase_this`
[INFO] [stderr]  --> src/downcase.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn downcase_this(s: String) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "16443047d6a3e9ec0425749da524c72eba432466e40593615196e797cb5121ed"`
[INFO] running `"docker" "rm" "-f" "16443047d6a3e9ec0425749da524c72eba432466e40593615196e797cb5121ed"`
[INFO] [stdout] 16443047d6a3e9ec0425749da524c72eba432466e40593615196e797cb5121ed
[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/sts10/capitalizer:/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] 085cb1b0fd8d34b8d79247e23559ac0b4d2b720071ead7935f3fe3f36218d615
[INFO] running `"docker" "start" "-a" "085cb1b0fd8d34b8d79247e23559ac0b4d2b720071ead7935f3fe3f36218d615"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/capitalizer-74d4cbc3c751311f
[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/capitalizer-1061320448a7dcb0
[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]    Doc-tests capitalizer
[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" "085cb1b0fd8d34b8d79247e23559ac0b4d2b720071ead7935f3fe3f36218d615"`
[INFO] running `"docker" "rm" "-f" "085cb1b0fd8d34b8d79247e23559ac0b4d2b720071ead7935f3fe3f36218d615"`
[INFO] [stdout] 085cb1b0fd8d34b8d79247e23559ac0b4d2b720071ead7935f3fe3f36218d615