[INFO] crate quickbacktrack 0.5.0 is already in cache
[INFO] extracting crate quickbacktrack 0.5.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/quickbacktrack/0.5.0
[INFO] extracting crate quickbacktrack 0.5.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/quickbacktrack/0.5.0
[INFO] validating manifest of quickbacktrack-0.5.0 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 quickbacktrack-0.5.0 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 quickbacktrack-0.5.0
[INFO] finished frobbing quickbacktrack-0.5.0
[INFO] frobbed toml for quickbacktrack-0.5.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/quickbacktrack/0.5.0/Cargo.toml
[INFO] started frobbing quickbacktrack-0.5.0
[INFO] finished frobbing quickbacktrack-0.5.0
[INFO] frobbed toml for quickbacktrack-0.5.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/quickbacktrack/0.5.0/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 quickbacktrack-0.5.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickbacktrack/0.5.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] c42de39eb90d4c997d032edffa74d1c96a877e70c011f3caef2c3bd3ec2b65cf
[INFO] running `"docker" "start" "-a" "c42de39eb90d4c997d032edffa74d1c96a877e70c011f3caef2c3bd3ec2b65cf"`
[INFO] [stderr]    Compiling quickbacktrack v0.5.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "c42de39eb90d4c997d032edffa74d1c96a877e70c011f3caef2c3bd3ec2b65cf"`
[INFO] running `"docker" "rm" "-f" "c42de39eb90d4c997d032edffa74d1c96a877e70c011f3caef2c3bd3ec2b65cf"`
[INFO] [stdout] c42de39eb90d4c997d032edffa74d1c96a877e70c011f3caef2c3bd3ec2b65cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickbacktrack/0.5.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0541e49f048fbcb0949f4eb67df51df6a75df9871ea0b634c3e38084e8a8cc5c
[INFO] running `"docker" "start" "-a" "0541e49f048fbcb0949f4eb67df51df6a75df9871ea0b634c3e38084e8a8cc5c"`
[INFO] [stderr]    Compiling quickbacktrack v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `PartialOrd` is imported redundantly
[INFO] [stderr]    --> examples/tsp.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |             use std::cmp::PartialOrd;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `"docker" "inspect" "0541e49f048fbcb0949f4eb67df51df6a75df9871ea0b634c3e38084e8a8cc5c"`
[INFO] running `"docker" "rm" "-f" "0541e49f048fbcb0949f4eb67df51df6a75df9871ea0b634c3e38084e8a8cc5c"`
[INFO] [stdout] 0541e49f048fbcb0949f4eb67df51df6a75df9871ea0b634c3e38084e8a8cc5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickbacktrack/0.5.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 95c9a6ccd494fe6c2bdd37dd76f1de444ba1828de693a70cf2a77009cd503b3f
[INFO] running `"docker" "start" "-a" "95c9a6ccd494fe6c2bdd37dd76f1de444ba1828de693a70cf2a77009cd503b3f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quickbacktrack-48a59206901915de
[INFO] [stderr]    Doc-tests quickbacktrack
[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" "95c9a6ccd494fe6c2bdd37dd76f1de444ba1828de693a70cf2a77009cd503b3f"`
[INFO] running `"docker" "rm" "-f" "95c9a6ccd494fe6c2bdd37dd76f1de444ba1828de693a70cf2a77009cd503b3f"`
[INFO] [stdout] 95c9a6ccd494fe6c2bdd37dd76f1de444ba1828de693a70cf2a77009cd503b3f