[INFO] cloning repository EkardNT/external-sort
[INFO] running `"git" "clone" "--bare" "git://github.com/EkardNT/external-sort.git" "work/cache/sources/gh/EkardNT/external-sort"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/EkardNT/external-sort'...
[INFO] running `"git" "clone" "work/cache/sources/gh/EkardNT/external-sort" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EkardNT/external-sort"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EkardNT/external-sort'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/EkardNT/external-sort" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3531ca6f4287a0fe197337e699ebcc1d89c1ef6f
[INFO] sha for GitHub repo EkardNT/external-sort: 3531ca6f4287a0fe197337e699ebcc1d89c1ef6f
[INFO] validating manifest of EkardNT/external-sort on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of EkardNT/external-sort on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing EkardNT/external-sort
[INFO] finished frobbing EkardNT/external-sort
[INFO] frobbed toml for EkardNT/external-sort written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EkardNT/external-sort/Cargo.toml
[INFO] started frobbing EkardNT/external-sort
[INFO] finished frobbing EkardNT/external-sort
[INFO] frobbed toml for EkardNT/external-sort written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort/Cargo.toml
[INFO] crate EkardNT/external-sort already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing EkardNT/external-sort against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] ff94bdf2fd3a96adce23e1d6c801d3686c6f2ca06605e382398fd5fd70935dde
[INFO] running `"docker" "start" "-a" "ff94bdf2fd3a96adce23e1d6c801d3686c6f2ca06605e382398fd5fd70935dde"`
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling clap v2.31.1
[INFO] [stderr]    Compiling fine_grained v0.1.2
[INFO] [stderr]    Compiling external-sort v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/validate.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut stdin = ::std::io::stdin();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/generate.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut stdout = ::std::io::stdout();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `entries`
[INFO] [stderr]    --> src/bin/sort.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     entries: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bytes`
[INFO] [stderr]    --> src/bin/sort.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     bytes: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_max_length`
[INFO] [stderr]    --> src/bin/sort.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     line_max_length: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_min_length`
[INFO] [stderr]    --> src/bin/sort.rs:274:5
[INFO] [stderr]     |
[INFO] [stderr] 274 |     line_min_length: usize
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `chunk_index`
[INFO] [stderr]    --> src/bin/sort.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     chunk_index: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.91s
[INFO] running `"docker" "inspect" "ff94bdf2fd3a96adce23e1d6c801d3686c6f2ca06605e382398fd5fd70935dde"`
[INFO] running `"docker" "rm" "-f" "ff94bdf2fd3a96adce23e1d6c801d3686c6f2ca06605e382398fd5fd70935dde"`
[INFO] [stdout] ff94bdf2fd3a96adce23e1d6c801d3686c6f2ca06605e382398fd5fd70935dde
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7a436552f76680ff9fe7f09692593f7f855e920f1cdb08b9a2f06a9f634c253c
[INFO] running `"docker" "start" "-a" "7a436552f76680ff9fe7f09692593f7f855e920f1cdb08b9a2f06a9f634c253c"`
[INFO] [stderr]    Compiling external-sort v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/validate.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut stdin = ::std::io::stdin();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/generate.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut stdout = ::std::io::stdout();
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `entries`
[INFO] [stderr]    --> src/bin/sort.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     entries: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bytes`
[INFO] [stderr]    --> src/bin/sort.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     bytes: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_max_length`
[INFO] [stderr]    --> src/bin/sort.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     line_max_length: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_min_length`
[INFO] [stderr]    --> src/bin/sort.rs:274:5
[INFO] [stderr]     |
[INFO] [stderr] 274 |     line_min_length: usize
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `chunk_index`
[INFO] [stderr]    --> src/bin/sort.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     chunk_index: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `"docker" "inspect" "7a436552f76680ff9fe7f09692593f7f855e920f1cdb08b9a2f06a9f634c253c"`
[INFO] running `"docker" "rm" "-f" "7a436552f76680ff9fe7f09692593f7f855e920f1cdb08b9a2f06a9f634c253c"`
[INFO] [stdout] 7a436552f76680ff9fe7f09692593f7f855e920f1cdb08b9a2f06a9f634c253c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EkardNT/external-sort:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 936621d741742fd7f15b431b667f5dfbacc850f787faf32b7eda129f24acbd37
[INFO] running `"docker" "start" "-a" "936621d741742fd7f15b431b667f5dfbacc850f787faf32b7eda129f24acbd37"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/external_sort-71f8bfcaae5533b3
[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] [stderr]      Running /opt/crater/target/debug/deps/generate-fe24beed065ede1e
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sort-efc23a5026cda7b5
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::compare_words_equal ... ok
[INFO] [stdout] test tests::get_prefix_value_64bit ... ok
[INFO] [stdout] test tests::compare_words_greater ... ok
[INFO] [stdout] test tests::compare_words_less ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/validate-e433d4e2a21274d9
[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]    Doc-tests external-sort
[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" "936621d741742fd7f15b431b667f5dfbacc850f787faf32b7eda129f24acbd37"`
[INFO] running `"docker" "rm" "-f" "936621d741742fd7f15b431b667f5dfbacc850f787faf32b7eda129f24acbd37"`
[INFO] [stdout] 936621d741742fd7f15b431b667f5dfbacc850f787faf32b7eda129f24acbd37