[INFO] updating cached repository https://github.com/alamminsalo/fft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b368044f0643f7b733f93e7f795f1be786b48b8f
[INFO] testing alamminsalo/fft against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falamminsalo%2Ffft" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alamminsalo/fft on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/alamminsalo/fft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c70e3adab1d5cafd2568605c0240ba4ba0f090b80979567077b8619ccfb4da3
[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" "3c70e3adab1d5cafd2568605c0240ba4ba0f090b80979567077b8619ccfb4da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c70e3adab1d5cafd2568605c0240ba4ba0f090b80979567077b8619ccfb4da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c70e3adab1d5cafd2568605c0240ba4ba0f090b80979567077b8619ccfb4da3", kill_on_drop: false }`
[INFO] [stdout] 3c70e3adab1d5cafd2568605c0240ba4ba0f090b80979567077b8619ccfb4da3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d49937816ac01f59225fb40f04c2fc7d926f89c84e8b5148a98fc287dad11ca
[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" "3d49937816ac01f59225fb40f04c2fc7d926f89c84e8b5148a98fc287dad11ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling svg v0.5.11
[INFO] [stderr]    Compiling termion v1.5.1
[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] [stdout] warning: unused variable: `analysis`
[INFO] [stdout]    --> src/main.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let analysis = fft::analyze(&sample, ft_min, ft_max, ft_ss);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_analysis`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "3d49937816ac01f59225fb40f04c2fc7d926f89c84e8b5148a98fc287dad11ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d49937816ac01f59225fb40f04c2fc7d926f89c84e8b5148a98fc287dad11ca", kill_on_drop: false }`
[INFO] [stdout] 3d49937816ac01f59225fb40f04c2fc7d926f89c84e8b5148a98fc287dad11ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a08b2d387820f33e3a8402a13809285388793efa69c89cf6552a7589a29dbe2a
[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" "a08b2d387820f33e3a8402a13809285388793efa69c89cf6552a7589a29dbe2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `analysis`
[INFO] [stdout]    --> src/main.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let analysis = fft::analyze(&sample, ft_min, ft_max, ft_ss);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_analysis`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:158:35
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:171:35
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let circle = graph_circle(&sine, 10.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:180:35
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:191:35
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:197:35
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let circle = graph_circle(&sine, 60.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:205:35
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let circle = graph_circle(&sine, 5.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:212:35
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let circle = graph_circle(&sine, 60.0);
[INFO] [stdout]     |                                   ^^^^^ expected slice, found struct `Sample`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[(f32, f32)]`
[INFO] [stdout]                found reference `&Sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a08b2d387820f33e3a8402a13809285388793efa69c89cf6552a7589a29dbe2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a08b2d387820f33e3a8402a13809285388793efa69c89cf6552a7589a29dbe2a", kill_on_drop: false }`
[INFO] [stdout] a08b2d387820f33e3a8402a13809285388793efa69c89cf6552a7589a29dbe2a