[INFO] fetching crate discrete_transforms 0.1.3...
[INFO] building discrete_transforms-0.1.3 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate discrete_transforms 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate discrete_transforms 0.1.3 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 476b2e83dbe4a62266937c5e4bc9f2af45a2d935782b9629ec6cdf704089862f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "476b2e83dbe4a62266937c5e4bc9f2af45a2d935782b9629ec6cdf704089862f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "476b2e83dbe4a62266937c5e4bc9f2af45a2d935782b9629ec6cdf704089862f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476b2e83dbe4a62266937c5e4bc9f2af45a2d935782b9629ec6cdf704089862f", kill_on_drop: false }`
[INFO] [stdout] 476b2e83dbe4a62266937c5e4bc9f2af45a2d935782b9629ec6cdf704089862f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 065149c78a0e77eaed30ed718ace58d14f3628f1a1b86fa5286f3a27b9c1113f
[INFO] running `Command { std: "docker" "start" "-a" "065149c78a0e77eaed30ed718ace58d14f3628f1a1b86fa5286f3a27b9c1113f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut temp: Vec<f64> = output.iter().take(length).cloned().collect();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                      ----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                             ----^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "065149c78a0e77eaed30ed718ace58d14f3628f1a1b86fa5286f3a27b9c1113f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065149c78a0e77eaed30ed718ace58d14f3628f1a1b86fa5286f3a27b9c1113f", kill_on_drop: false }`
[INFO] [stdout] 065149c78a0e77eaed30ed718ace58d14f3628f1a1b86fa5286f3a27b9c1113f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c89dd5031f98b0dcb15c84a5df876fe2f9a2b7fbb87edc7a04cdfa85b39a433b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c89dd5031f98b0dcb15c84a5df876fe2f9a2b7fbb87edc7a04cdfa85b39a433b", kill_on_drop: false }`
[INFO] [stderr]    Compiling discrete_transforms v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut temp: Vec<f64> = output.iter().take(length).cloned().collect();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                      ----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                             ----^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let mut temp: Vec<f64> = output.iter().take(length).cloned().collect();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                      ----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/haar_1d.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let (mut s, mut d) =  temp.split_at(length / 2);
[INFO] [stdout]    |                             ----^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "c89dd5031f98b0dcb15c84a5df876fe2f9a2b7fbb87edc7a04cdfa85b39a433b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c89dd5031f98b0dcb15c84a5df876fe2f9a2b7fbb87edc7a04cdfa85b39a433b", kill_on_drop: false }`
[INFO] [stdout] c89dd5031f98b0dcb15c84a5df876fe2f9a2b7fbb87edc7a04cdfa85b39a433b
