[INFO] crate exponential-backoff 0.2.2 is already in cache
[INFO] extracting crate exponential-backoff 0.2.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/exponential-backoff/0.2.2
[INFO] extracting crate exponential-backoff 0.2.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/exponential-backoff/0.2.2
[INFO] validating manifest of exponential-backoff-0.2.2 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 exponential-backoff-0.2.2 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 exponential-backoff-0.2.2
[INFO] finished frobbing exponential-backoff-0.2.2
[INFO] frobbed toml for exponential-backoff-0.2.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/exponential-backoff/0.2.2/Cargo.toml
[INFO] started frobbing exponential-backoff-0.2.2
[INFO] finished frobbing exponential-backoff-0.2.2
[INFO] frobbed toml for exponential-backoff-0.2.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/exponential-backoff/0.2.2/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 exponential-backoff-0.2.2 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-0/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/exponential-backoff/0.2.2:/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] 7156c943da2ba57883a9af26100a2236de26a37f54e0095bb68726e9a7a5a8ca
[INFO] running `"docker" "start" "-a" "7156c943da2ba57883a9af26100a2236de26a37f54e0095bb68726e9a7a5a8ca"`
[INFO] [stderr]    Compiling exponential-backoff v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "7156c943da2ba57883a9af26100a2236de26a37f54e0095bb68726e9a7a5a8ca"`
[INFO] running `"docker" "rm" "-f" "7156c943da2ba57883a9af26100a2236de26a37f54e0095bb68726e9a7a5a8ca"`
[INFO] [stdout] 7156c943da2ba57883a9af26100a2236de26a37f54e0095bb68726e9a7a5a8ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/exponential-backoff/0.2.2:/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] 0c9b81432ddbebb043afd1351d3181e103eb891b75d662e8573fb9dc63d6d9d5
[INFO] running `"docker" "start" "-a" "0c9b81432ddbebb043afd1351d3181e103eb891b75d662e8573fb9dc63d6d9d5"`
[INFO] [stderr]    Compiling exponential-backoff v0.2.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "0c9b81432ddbebb043afd1351d3181e103eb891b75d662e8573fb9dc63d6d9d5"`
[INFO] running `"docker" "rm" "-f" "0c9b81432ddbebb043afd1351d3181e103eb891b75d662e8573fb9dc63d6d9d5"`
[INFO] [stdout] 0c9b81432ddbebb043afd1351d3181e103eb891b75d662e8573fb9dc63d6d9d5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/exponential-backoff/0.2.2:/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] e75fc1d2531af9436ab18a09350938c859862c529e6bfa9ef560837f8b1b86dc
[INFO] running `"docker" "start" "-a" "e75fc1d2531af9436ab18a09350938c859862c529e6bfa9ef560837f8b1b86dc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exponential_backoff-eadda290445d8d67
[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] [stderr]      Running /opt/crater/target/debug/deps/test-e660b59bd3ef9b0d
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests exponential-backoff
[INFO] [stdout] test doesnt_crash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "e75fc1d2531af9436ab18a09350938c859862c529e6bfa9ef560837f8b1b86dc"`
[INFO] running `"docker" "rm" "-f" "e75fc1d2531af9436ab18a09350938c859862c529e6bfa9ef560837f8b1b86dc"`
[INFO] [stdout] e75fc1d2531af9436ab18a09350938c859862c529e6bfa9ef560837f8b1b86dc