[INFO] updating cached repository https://github.com/alamminsalo/fft
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b368044f0643f7b733f93e7f795f1be786b48b8f
[INFO] testing alamminsalo/fft against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamminsalo%2Ffft" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alamminsalo/fft on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alamminsalo/fft
[INFO] finished tweaking git repo https://github.com/alamminsalo/fft
[INFO] tweaked toml for git repo https://github.com/alamminsalo/fft written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/alamminsalo/fft already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 167c6349caae12470e0f51bf3fc0c7ee17601a0fc864f27329ac04fba46312c6
[INFO] running `"docker" "start" "-a" "167c6349caae12470e0f51bf3fc0c7ee17601a0fc864f27329ac04fba46312c6"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling svg v0.5.11
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling tui v0.2.3
[INFO] [stderr]    Compiling plotlib v0.3.0
[INFO] [stderr]    Compiling fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `analysis`
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             let analysis = fft::analyze(&sample, ft_min, ft_max, ft_ss);
[INFO] [stderr]     |                 ^^^^^^^^ help: consider prefixing with an underscore: `_analysis`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.91s
[INFO] running `"docker" "inspect" "167c6349caae12470e0f51bf3fc0c7ee17601a0fc864f27329ac04fba46312c6"`
[INFO] running `"docker" "rm" "-f" "167c6349caae12470e0f51bf3fc0c7ee17601a0fc864f27329ac04fba46312c6"`
[INFO] [stdout] 167c6349caae12470e0f51bf3fc0c7ee17601a0fc864f27329ac04fba46312c6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c3983eccdb657f4aa8dbd707ec4c97f7b339eca2e78e7dfdb058ff349c2c80d7
[INFO] running `"docker" "start" "-a" "c3983eccdb657f4aa8dbd707ec4c97f7b339eca2e78e7dfdb058ff349c2c80d7"`
[INFO] [stderr]    Compiling fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `analysis`
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             let analysis = fft::analyze(&sample, ft_min, ft_max, ft_ss);
[INFO] [stderr]     |                 ^^^^^^^^ help: consider prefixing with an underscore: `_analysis`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:158:35
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:167:35
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:171:35
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let circle = graph_circle(&sine, 10.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:180:35
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:191:35
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:197:35
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let circle = graph_circle(&sine, 60.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:205:35
[INFO] [stderr]     |
[INFO] [stderr] 205 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:212:35
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let circle = graph_circle(&sine, 60.0);
[INFO] [stderr]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[(f32, f32)]`
[INFO] [stderr]                found type `&Sample`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `fft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c3983eccdb657f4aa8dbd707ec4c97f7b339eca2e78e7dfdb058ff349c2c80d7"`
[INFO] running `"docker" "rm" "-f" "c3983eccdb657f4aa8dbd707ec4c97f7b339eca2e78e7dfdb058ff349c2c80d7"`
[INFO] [stdout] c3983eccdb657f4aa8dbd707ec4c97f7b339eca2e78e7dfdb058ff349c2c80d7