[INFO] fetching crate discrete_transforms 0.1.3...
[INFO] extracting crate discrete_transforms 0.1.3 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/discrete_transforms/0.1.3
[INFO] extracting crate discrete_transforms 0.1.3 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/discrete_transforms/0.1.3
[INFO] validating manifest of discrete_transforms-0.1.3 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 discrete_transforms-0.1.3 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 discrete_transforms-0.1.3
[INFO] finished frobbing discrete_transforms-0.1.3
[INFO] frobbed toml for discrete_transforms-0.1.3 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/discrete_transforms/0.1.3/Cargo.toml
[INFO] started frobbing discrete_transforms-0.1.3
[INFO] finished frobbing discrete_transforms-0.1.3
[INFO] frobbed toml for discrete_transforms-0.1.3 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/discrete_transforms/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing discrete_transforms-0.1.3 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/reg/discrete_transforms/0.1.3:/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] 28a5096065155e07b28c2b7e18113a89cfb41c1a8007fa32511f5732f84286b2
[INFO] running `"docker" "start" "-a" "28a5096065155e07b28c2b7e18113a89cfb41c1a8007fa32511f5732f84286b2"`
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/haar_1d.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let mut temp: Vec<f64> = output.iter().take(length).cloned().collect();
[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/haar_1d.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stderr]    |                      ----^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/haar_1d.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stderr]    |                             ----^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "28a5096065155e07b28c2b7e18113a89cfb41c1a8007fa32511f5732f84286b2"`
[INFO] running `"docker" "rm" "-f" "28a5096065155e07b28c2b7e18113a89cfb41c1a8007fa32511f5732f84286b2"`
[INFO] [stdout] 28a5096065155e07b28c2b7e18113a89cfb41c1a8007fa32511f5732f84286b2
[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/reg/discrete_transforms/0.1.3:/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] 3b999f59937ad85ee29ac0e3cac17f146e9d356fe6898f42b6a2346856df5577
[INFO] running `"docker" "start" "-a" "3b999f59937ad85ee29ac0e3cac17f146e9d356fe6898f42b6a2346856df5577"`
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/haar_1d.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let mut temp: Vec<f64> = output.iter().take(length).cloned().collect();
[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/haar_1d.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stderr]    |                      ----^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/haar_1d.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stderr]    |                             ----^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "3b999f59937ad85ee29ac0e3cac17f146e9d356fe6898f42b6a2346856df5577"`
[INFO] running `"docker" "rm" "-f" "3b999f59937ad85ee29ac0e3cac17f146e9d356fe6898f42b6a2346856df5577"`
[INFO] [stdout] 3b999f59937ad85ee29ac0e3cac17f146e9d356fe6898f42b6a2346856df5577
[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/reg/discrete_transforms/0.1.3:/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] 753a84b1fe22c648f6002a2f488f741cc83dc36880218f92f4ba7273e77a51f3
[INFO] running `"docker" "start" "-a" "753a84b1fe22c648f6002a2f488f741cc83dc36880218f92f4ba7273e77a51f3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/discrete_transforms-3667415880922d2a
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dct_1d_tests-d8851a3408f4eda1
[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 2 tests
[INFO] [stdout] test dct_1d_forward_test ... ok
[INFO] [stdout] test dct_1d_inverse_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dct_2d_tests-e3b0aa0492caa920
[INFO] [stdout] running 2 tests
[INFO] [stdout] test dct_2d_forward_test ... ok
[INFO] [stdout] test dct_2d_inverse_test ... 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/haar_1d_tests-2165d4eb6975baa2
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test haar_1d_forward_test ... ok
[INFO] [stdout] test haar_1d_inverse_test ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/haar_2d_tests-270b9cf8940d3f6d
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test haar_2d_inverse_test ... ok
[INFO] [stdout] test haar_2d_forward_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests discrete_transforms
[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" "753a84b1fe22c648f6002a2f488f741cc83dc36880218f92f4ba7273e77a51f3"`
[INFO] running `"docker" "rm" "-f" "753a84b1fe22c648f6002a2f488f741cc83dc36880218f92f4ba7273e77a51f3"`
[INFO] [stdout] 753a84b1fe22c648f6002a2f488f741cc83dc36880218f92f4ba7273e77a51f3