[INFO] crate failure-tools 4.0.2 is already in cache
[INFO] extracting crate failure-tools 4.0.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/failure-tools/4.0.2
[INFO] extracting crate failure-tools 4.0.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failure-tools/4.0.2
[INFO] validating manifest of failure-tools-4.0.2 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 failure-tools-4.0.2 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 failure-tools-4.0.2
[INFO] finished frobbing failure-tools-4.0.2
[INFO] frobbed toml for failure-tools-4.0.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/failure-tools/4.0.2/Cargo.toml
[INFO] started frobbing failure-tools-4.0.2
[INFO] finished frobbing failure-tools-4.0.2
[INFO] frobbed toml for failure-tools-4.0.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failure-tools/4.0.2/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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing failure-tools-4.0.2 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-5/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/failure-tools/4.0.2:/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] e7ff485a07b1f83e45aa67e305e5d6ea446d33f6fe3191c00a97e77d62d6b7f5
[INFO] running `"docker" "start" "-a" "e7ff485a07b1f83e45aa67e305e5d6ea446d33f6fe3191c00a97e77d62d6b7f5"`
[INFO] [stderr]    Compiling failure-tools v4.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]  --> src/lib.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let causes = e.causes().collect::<Vec<_>>();
[INFO] [stderr]   |                    ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "e7ff485a07b1f83e45aa67e305e5d6ea446d33f6fe3191c00a97e77d62d6b7f5"`
[INFO] running `"docker" "rm" "-f" "e7ff485a07b1f83e45aa67e305e5d6ea446d33f6fe3191c00a97e77d62d6b7f5"`
[INFO] [stdout] e7ff485a07b1f83e45aa67e305e5d6ea446d33f6fe3191c00a97e77d62d6b7f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/failure-tools/4.0.2:/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] 467854451f800639204185c54080415ff0011766d34037e21dc6a3e1177f8d3d
[INFO] running `"docker" "start" "-a" "467854451f800639204185c54080415ff0011766d34037e21dc6a3e1177f8d3d"`
[INFO] [stderr]    Compiling failure-tools v4.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]  --> src/lib.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let causes = e.causes().collect::<Vec<_>>();
[INFO] [stderr]   |                    ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "467854451f800639204185c54080415ff0011766d34037e21dc6a3e1177f8d3d"`
[INFO] running `"docker" "rm" "-f" "467854451f800639204185c54080415ff0011766d34037e21dc6a3e1177f8d3d"`
[INFO] [stdout] 467854451f800639204185c54080415ff0011766d34037e21dc6a3e1177f8d3d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/failure-tools/4.0.2:/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] 1dfa341ebff508f69f3bdedf0a040d59370e0cd3ebb34c50766688ce7f96c2cf
[INFO] running `"docker" "start" "-a" "1dfa341ebff508f69f3bdedf0a040d59370e0cd3ebb34c50766688ce7f96c2cf"`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/failure_tools-42f2cef099012a7f
[INFO] running `"docker" "inspect" "1dfa341ebff508f69f3bdedf0a040d59370e0cd3ebb34c50766688ce7f96c2cf"`
[INFO] running `"docker" "rm" "-f" "1dfa341ebff508f69f3bdedf0a040d59370e0cd3ebb34c50766688ce7f96c2cf"`
[INFO] [stdout] 1dfa341ebff508f69f3bdedf0a040d59370e0cd3ebb34c50766688ce7f96c2cf