[INFO] crate discrete_transforms 0.1.3 is already in cache
[INFO] testing discrete_transforms-0.1.3 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate discrete_transforms 0.1.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate discrete_transforms 0.1.3 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate discrete_transforms 0.1.3
[INFO] finished tweaking crates.io crate discrete_transforms 0.1.3
[INFO] tweaked toml for crates.io crate discrete_transforms 0.1.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] b0d0b49a2b0e7a49284433d7d0173593c2a7e035b99168942767c33bf8248949
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b0d0b49a2b0e7a49284433d7d0173593c2a7e035b99168942767c33bf8248949"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/rustwide/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] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "b0d0b49a2b0e7a49284433d7d0173593c2a7e035b99168942767c33bf8248949"`
[INFO] running `"docker" "rm" "-f" "b0d0b49a2b0e7a49284433d7d0173593c2a7e035b99168942767c33bf8248949"`
[INFO] [stdout] b0d0b49a2b0e7a49284433d7d0173593c2a7e035b99168942767c33bf8248949
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2e3824180ee25281b80e8c8a24b11a98f1eb9e53e88d43cad05182a5baa198b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2e3824180ee25281b80e8c8a24b11a98f1eb9e53e88d43cad05182a5baa198b0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/rustwide/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] warning: 3 warnings emitted
[INFO] [stderr] 
[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] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "2e3824180ee25281b80e8c8a24b11a98f1eb9e53e88d43cad05182a5baa198b0"`
[INFO] running `"docker" "rm" "-f" "2e3824180ee25281b80e8c8a24b11a98f1eb9e53e88d43cad05182a5baa198b0"`
[INFO] [stdout] 2e3824180ee25281b80e8c8a24b11a98f1eb9e53e88d43cad05182a5baa198b0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab4a18a2767cc7e91eb8435037f7c2b1b5d43dd55d7abda71d1f7ed605ddafcc
[INFO] running `"docker" "start" "-a" "ab4a18a2767cc7e91eb8435037f7c2b1b5d43dd55d7abda71d1f7ed605ddafcc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] warning: 3 warnings emitted
[INFO] [stderr] 
[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] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/discrete_transforms-6e53e6360d4eb999
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dct_1d_tests-2b3bb673a25666d6
[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 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] [stderr]      Running /opt/rustwide/target/debug/deps/dct_2d_tests-52c7c698bc68bee5
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test dct_2d_inverse_test ... ok
[INFO] [stdout] test dct_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]      Running /opt/rustwide/target/debug/deps/haar_1d_tests-3f6876c58d735d70
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test haar_1d_inverse_test ... ok
[INFO] [stdout] test haar_1d_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]      Running /opt/rustwide/target/debug/deps/haar_2d_tests-565cdde23e74caa4
[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" "ab4a18a2767cc7e91eb8435037f7c2b1b5d43dd55d7abda71d1f7ed605ddafcc"`
[INFO] running `"docker" "rm" "-f" "ab4a18a2767cc7e91eb8435037f7c2b1b5d43dd55d7abda71d1f7ed605ddafcc"`
[INFO] [stdout] ab4a18a2767cc7e91eb8435037f7c2b1b5d43dd55d7abda71d1f7ed605ddafcc