[INFO] crate cem 0.1.0 is already in cache
[INFO] extracting crate cem 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/cem/0.1.0
[INFO] extracting crate cem 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cem/0.1.0
[INFO] validating manifest of cem-0.1.0 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 cem-0.1.0 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 cem-0.1.0
[INFO] finished frobbing cem-0.1.0
[INFO] frobbed toml for cem-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/cem/0.1.0/Cargo.toml
[INFO] started frobbing cem-0.1.0
[INFO] finished frobbing cem-0.1.0
[INFO] frobbed toml for cem-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cem/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 cem-0.1.0 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/reg/cem/0.1.0:/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] f789527ad52cff8b467b40bb76a3eec711332d008d6fd6bd2fe76c99b59c8d4e
[INFO] running `"docker" "start" "-a" "f789527ad52cff8b467b40bb76a3eec711332d008d6fd6bd2fe76c99b59c8d4e"`
[INFO] [stderr]    Compiling cem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/encode.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let s = s.trim_right_matches('\0');
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `"docker" "inspect" "f789527ad52cff8b467b40bb76a3eec711332d008d6fd6bd2fe76c99b59c8d4e"`
[INFO] running `"docker" "rm" "-f" "f789527ad52cff8b467b40bb76a3eec711332d008d6fd6bd2fe76c99b59c8d4e"`
[INFO] [stdout] f789527ad52cff8b467b40bb76a3eec711332d008d6fd6bd2fe76c99b59c8d4e
[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/reg/cem/0.1.0:/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] 6352a48e91ebdac28014efce2bcdd97828b7a8bb23457c747d428781b1e02b33
[INFO] running `"docker" "start" "-a" "6352a48e91ebdac28014efce2bcdd97828b7a8bb23457c747d428781b1e02b33"`
[INFO] [stderr]    Compiling cem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/encode.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let s = s.trim_right_matches('\0');
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "6352a48e91ebdac28014efce2bcdd97828b7a8bb23457c747d428781b1e02b33"`
[INFO] running `"docker" "rm" "-f" "6352a48e91ebdac28014efce2bcdd97828b7a8bb23457c747d428781b1e02b33"`
[INFO] [stdout] 6352a48e91ebdac28014efce2bcdd97828b7a8bb23457c747d428781b1e02b33
[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/reg/cem/0.1.0:/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] 755098a057c2d7d590ae50fa2133c6924ee05d25729a81808918359b45f9369e
[INFO] running `"docker" "start" "-a" "755098a057c2d7d590ae50fa2133c6924ee05d25729a81808918359b45f9369e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cem-e8302e625d77caf0
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/report-ff8f576ad0200280
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests cem
[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] [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" "755098a057c2d7d590ae50fa2133c6924ee05d25729a81808918359b45f9369e"`
[INFO] running `"docker" "rm" "-f" "755098a057c2d7d590ae50fa2133c6924ee05d25729a81808918359b45f9369e"`
[INFO] [stdout] 755098a057c2d7d590ae50fa2133c6924ee05d25729a81808918359b45f9369e