[INFO] updating cached repository appaquet/extsort-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/appaquet/extsort-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/appaquet/extsort-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/appaquet/extsort-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/appaquet/extsort-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/appaquet/extsort-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 44a50e587cd6ed4dc7bcdf917818b3f95b4c550e
[INFO] sha for GitHub repo appaquet/extsort-rs: 44a50e587cd6ed4dc7bcdf917818b3f95b4c550e
[INFO] validating manifest of appaquet/extsort-rs 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 appaquet/extsort-rs 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 appaquet/extsort-rs
[INFO] finished frobbing appaquet/extsort-rs
[INFO] frobbed toml for appaquet/extsort-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs/Cargo.toml
[INFO] started frobbing appaquet/extsort-rs
[INFO] finished frobbing appaquet/extsort-rs
[INFO] frobbed toml for appaquet/extsort-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/appaquet/extsort-rs/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 appaquet/extsort-rs 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs:/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] 3abae2e093cfc2abf6958bd845ed034300e557e0ab5eebea5c86c7e93f62a8ca
[INFO] running `"docker" "start" "-a" "3abae2e093cfc2abf6958bd845ed034300e557e0ab5eebea5c86c7e93f62a8ca"`
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling extsort v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.51s
[INFO] running `"docker" "inspect" "3abae2e093cfc2abf6958bd845ed034300e557e0ab5eebea5c86c7e93f62a8ca"`
[INFO] running `"docker" "rm" "-f" "3abae2e093cfc2abf6958bd845ed034300e557e0ab5eebea5c86c7e93f62a8ca"`
[INFO] [stdout] 3abae2e093cfc2abf6958bd845ed034300e557e0ab5eebea5c86c7e93f62a8ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs:/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] c440810682fde44e01e144379b9df77242590add5e76219a8b340f178e716593
[INFO] running `"docker" "start" "-a" "c440810682fde44e01e144379b9df77242590add5e76219a8b340f178e716593"`
[INFO] [stderr]    Compiling extsort v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/markdown.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | /// skeptic generates tests from markdown. See [build.rs]: ../build.rs
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 16 | include!(concat!(env!("OUT_DIR"), "/skeptic-tests.rs"));
[INFO] [stderr]    | -------------------------------------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `"docker" "inspect" "c440810682fde44e01e144379b9df77242590add5e76219a8b340f178e716593"`
[INFO] running `"docker" "rm" "-f" "c440810682fde44e01e144379b9df77242590add5e76219a8b340f178e716593"`
[INFO] [stdout] c440810682fde44e01e144379b9df77242590add5e76219a8b340f178e716593
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/appaquet/extsort-rs:/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] 41cb326378fa40023c96e1b5d3baa59c7c43f4433004020d337c5fef605c7aeb
[INFO] running `"docker" "start" "-a" "41cb326378fa40023c96e1b5d3baa59c7c43f4433004020d337c5fef605c7aeb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/extsort-fae6a2998db5cfd1
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test sorter::test::test_smaller_than_segment ... ok
[INFO] [stdout] test sorter::test::test_multiple_segments ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/markdown-c7ff1165a518e91b
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test readme_sect_example_line_9 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extsort
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "41cb326378fa40023c96e1b5d3baa59c7c43f4433004020d337c5fef605c7aeb"`
[INFO] running `"docker" "rm" "-f" "41cb326378fa40023c96e1b5d3baa59c7c43f4433004020d337c5fef605c7aeb"`
[INFO] [stdout] 41cb326378fa40023c96e1b5d3baa59c7c43f4433004020d337c5fef605c7aeb