[INFO] crate concat-string 1.0.1 is already in cache
[INFO] extracting crate concat-string 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/concat-string/1.0.1
[INFO] extracting crate concat-string 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concat-string/1.0.1
[INFO] validating manifest of concat-string-1.0.1 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 concat-string-1.0.1 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 concat-string-1.0.1
[INFO] finished frobbing concat-string-1.0.1
[INFO] frobbed toml for concat-string-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/concat-string/1.0.1/Cargo.toml
[INFO] started frobbing concat-string-1.0.1
[INFO] finished frobbing concat-string-1.0.1
[INFO] frobbed toml for concat-string-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concat-string/1.0.1/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 concat-string-1.0.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concat-string/1.0.1:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1179d934bd0b44c7a0d6f948138ddd2b889d7581f4a12f6133c8cf7dc35eee91
[INFO] running `"docker" "start" "-a" "1179d934bd0b44c7a0d6f948138ddd2b889d7581f4a12f6133c8cf7dc35eee91"`
[INFO] [stderr]    Compiling concat-string v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "1179d934bd0b44c7a0d6f948138ddd2b889d7581f4a12f6133c8cf7dc35eee91"`
[INFO] running `"docker" "rm" "-f" "1179d934bd0b44c7a0d6f948138ddd2b889d7581f4a12f6133c8cf7dc35eee91"`
[INFO] [stdout] 1179d934bd0b44c7a0d6f948138ddd2b889d7581f4a12f6133c8cf7dc35eee91
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concat-string/1.0.1:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2f4b301da7731a7b222197ed93837a9c3f0d534d291464e1d4a1e5bffe0f29a1
[INFO] running `"docker" "start" "-a" "2f4b301da7731a7b222197ed93837a9c3f0d534d291464e1d4a1e5bffe0f29a1"`
[INFO] [stderr]    Compiling concat-string v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "2f4b301da7731a7b222197ed93837a9c3f0d534d291464e1d4a1e5bffe0f29a1"`
[INFO] running `"docker" "rm" "-f" "2f4b301da7731a7b222197ed93837a9c3f0d534d291464e1d4a1e5bffe0f29a1"`
[INFO] [stdout] 2f4b301da7731a7b222197ed93837a9c3f0d534d291464e1d4a1e5bffe0f29a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concat-string/1.0.1:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 7fe7fde279970df65b7345066d9429f70a957f0748c975c9315232309564418c
[INFO] running `"docker" "start" "-a" "7fe7fde279970df65b7345066d9429f70a957f0748c975c9315232309564418c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/concat_string-d1d1f3107eb9390d
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::concat_string_0_args ... ok
[INFO] [stdout] test tests::concat_string_1_arg ... ok
[INFO] [stdout] test tests::concat_string_str_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests concat-string
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - concat_string (line 61) ... ok
[INFO] [stdout] test src/lib.rs -  (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7fe7fde279970df65b7345066d9429f70a957f0748c975c9315232309564418c"`
[INFO] running `"docker" "rm" "-f" "7fe7fde279970df65b7345066d9429f70a957f0748c975c9315232309564418c"`
[INFO] [stdout] 7fe7fde279970df65b7345066d9429f70a957f0748c975c9315232309564418c