[INFO] updating cached repository DemarcatedTitle/replicate.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DemarcatedTitle/replicate.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DemarcatedTitle/replicate.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DemarcatedTitle/replicate.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DemarcatedTitle/replicate.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DemarcatedTitle/replicate.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da5076833539dd90fa70f125850b5a2baa6d8cd2
[INFO] sha for GitHub repo DemarcatedTitle/replicate.rs: da5076833539dd90fa70f125850b5a2baa6d8cd2
[INFO] validating manifest of DemarcatedTitle/replicate.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 DemarcatedTitle/replicate.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 DemarcatedTitle/replicate.rs
[INFO] finished frobbing DemarcatedTitle/replicate.rs
[INFO] frobbed toml for DemarcatedTitle/replicate.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.rs/Cargo.toml
[INFO] started frobbing DemarcatedTitle/replicate.rs
[INFO] finished frobbing DemarcatedTitle/replicate.rs
[INFO] frobbed toml for DemarcatedTitle/replicate.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DemarcatedTitle/replicate.rs/Cargo.toml
[INFO] crate DemarcatedTitle/replicate.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 DemarcatedTitle/replicate.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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.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] 7791855ff27f574b82e875ec6b172edc657854ec715deaed2f58286a35ab3f6c
[INFO] running `"docker" "start" "-a" "7791855ff27f574b82e875ec6b172edc657854ec715deaed2f58286a35ab3f6c"`
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling inflate v0.4.4
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.21.0
[INFO] [stderr]    Compiling replicate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `usize`
[INFO] [stderr]   --> src/lib.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |         Some(usize) => {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_usize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.00s
[INFO] running `"docker" "inspect" "7791855ff27f574b82e875ec6b172edc657854ec715deaed2f58286a35ab3f6c"`
[INFO] running `"docker" "rm" "-f" "7791855ff27f574b82e875ec6b172edc657854ec715deaed2f58286a35ab3f6c"`
[INFO] [stdout] 7791855ff27f574b82e875ec6b172edc657854ec715deaed2f58286a35ab3f6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.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] 7137eeda920a785787c6e3a605105e23d57cd19c858c257cb81fd8c310b7acc1
[INFO] running `"docker" "start" "-a" "7137eeda920a785787c6e3a605105e23d57cd19c858c257cb81fd8c310b7acc1"`
[INFO] [stderr]    Compiling replicate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `usize`
[INFO] [stderr]   --> src/lib.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |         Some(usize) => {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_usize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "7137eeda920a785787c6e3a605105e23d57cd19c858c257cb81fd8c310b7acc1"`
[INFO] running `"docker" "rm" "-f" "7137eeda920a785787c6e3a605105e23d57cd19c858c257cb81fd8c310b7acc1"`
[INFO] [stdout] 7137eeda920a785787c6e3a605105e23d57cd19c858c257cb81fd8c310b7acc1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DemarcatedTitle/replicate.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] 09cbb6730e098472e3db28f80aae4cd8ded73a431f781f2fd612101f19f3e083
[INFO] running `"docker" "start" "-a" "09cbb6730e098472e3db28f80aae4cd8ded73a431f781f2fd612101f19f3e083"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/replicate-c51c4ee442624193
[INFO] [stderr]      Running /opt/crater/target/debug/deps/replicate-edb7ce1a38329594
[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 replicate
[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" "09cbb6730e098472e3db28f80aae4cd8ded73a431f781f2fd612101f19f3e083"`
[INFO] running `"docker" "rm" "-f" "09cbb6730e098472e3db28f80aae4cd8ded73a431f781f2fd612101f19f3e083"`
[INFO] [stdout] 09cbb6730e098472e3db28f80aae4cd8ded73a431f781f2fd612101f19f3e083