[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 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-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] f4197b45877a1267659197d52665f5f7c2a803d01d6c16e6f78374598522e195
[INFO] running `"docker" "start" "-a" "f4197b45877a1267659197d52665f5f7c2a803d01d6c16e6f78374598522e195"`
[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 1.28s
[INFO] running `"docker" "inspect" "f4197b45877a1267659197d52665f5f7c2a803d01d6c16e6f78374598522e195"`
[INFO] running `"docker" "rm" "-f" "f4197b45877a1267659197d52665f5f7c2a803d01d6c16e6f78374598522e195"`
[INFO] [stdout] f4197b45877a1267659197d52665f5f7c2a803d01d6c16e6f78374598522e195
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ad6118b33d4a52522eeea42ec6f3b44b97656415c17d7e8a17427845daf7fa81
[INFO] running `"docker" "start" "-a" "ad6118b33d4a52522eeea42ec6f3b44b97656415c17d7e8a17427845daf7fa81"`
[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 1.35s
[INFO] running `"docker" "inspect" "ad6118b33d4a52522eeea42ec6f3b44b97656415c17d7e8a17427845daf7fa81"`
[INFO] running `"docker" "rm" "-f" "ad6118b33d4a52522eeea42ec6f3b44b97656415c17d7e8a17427845daf7fa81"`
[INFO] [stdout] ad6118b33d4a52522eeea42ec6f3b44b97656415c17d7e8a17427845daf7fa81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 13a6e2a306e4d09d0485893795f8878c25808e22628add7a5912e2b9d55a6d13
[INFO] running `"docker" "start" "-a" "13a6e2a306e4d09d0485893795f8878c25808e22628add7a5912e2b9d55a6d13"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/capitalizer-f240a965547fc04e
[INFO] [stderr]      Running /opt/crater/target/debug/deps/capitalizer-657cc7b93c329ecd
[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] [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" "13a6e2a306e4d09d0485893795f8878c25808e22628add7a5912e2b9d55a6d13"`
[INFO] running `"docker" "rm" "-f" "13a6e2a306e4d09d0485893795f8878c25808e22628add7a5912e2b9d55a6d13"`
[INFO] [stdout] 13a6e2a306e4d09d0485893795f8878c25808e22628add7a5912e2b9d55a6d13