[INFO] crate concat-string 1.0.1 is already in cache
[INFO] extracting crate concat-string 1.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/concat-string/1.0.1
[INFO] extracting crate concat-string 1.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/concat-string/1.0.1
[INFO] validating manifest of concat-string-1.0.1 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 concat-string-1.0.1 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 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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/reg/concat-string/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 concat-string-1.0.1 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-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] cf88b7b58442a04f4864a0cf464bf210b5065b497270b31f2c64e5995b7ce6e3
[INFO] running `"docker" "start" "-a" "cf88b7b58442a04f4864a0cf464bf210b5065b497270b31f2c64e5995b7ce6e3"`
[INFO] [stderr]    Compiling concat-string v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "cf88b7b58442a04f4864a0cf464bf210b5065b497270b31f2c64e5995b7ce6e3"`
[INFO] running `"docker" "rm" "-f" "cf88b7b58442a04f4864a0cf464bf210b5065b497270b31f2c64e5995b7ce6e3"`
[INFO] [stdout] cf88b7b58442a04f4864a0cf464bf210b5065b497270b31f2c64e5995b7ce6e3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f960574e56776ad03f001b821589ba71d57a80eab4156c9f129ca58232f3474
[INFO] running `"docker" "start" "-a" "3f960574e56776ad03f001b821589ba71d57a80eab4156c9f129ca58232f3474"`
[INFO] [stderr]    Compiling concat-string v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "3f960574e56776ad03f001b821589ba71d57a80eab4156c9f129ca58232f3474"`
[INFO] running `"docker" "rm" "-f" "3f960574e56776ad03f001b821589ba71d57a80eab4156c9f129ca58232f3474"`
[INFO] [stdout] 3f960574e56776ad03f001b821589ba71d57a80eab4156c9f129ca58232f3474
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] aa064dc92938957b93b79c51ca81db9b3fe6b248282349787cbd44e91cf07e86
[INFO] running `"docker" "start" "-a" "aa064dc92938957b93b79c51ca81db9b3fe6b248282349787cbd44e91cf07e86"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/concat_string-85ea43414eb6c9a5
[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" "aa064dc92938957b93b79c51ca81db9b3fe6b248282349787cbd44e91cf07e86"`
[INFO] running `"docker" "rm" "-f" "aa064dc92938957b93b79c51ca81db9b3fe6b248282349787cbd44e91cf07e86"`
[INFO] [stdout] aa064dc92938957b93b79c51ca81db9b3fe6b248282349787cbd44e91cf07e86