[INFO] cloning repository https://github.com/Ryu1845/cutfd_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryu1845/cutfd_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyu1845%2Fcutfd_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyu1845%2Fcutfd_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f80542d264e849b05c09daae503d30d714d42bf
[INFO] testing Ryu1845/cutfd_lib against 1.94.0 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyu1845%2Fcutfd_lib" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ryu1845/cutfd_lib
[INFO] finished tweaking git repo https://github.com/Ryu1845/cutfd_lib
[INFO] tweaked toml for git repo https://github.com/Ryu1845/cutfd_lib written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ryu1845/cutfd_lib on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ryu1845/cutfd_lib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rstats v1.0.13
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.7
[INFO] [stderr]   Downloaded rustfft v4.1.0
[INFO] [stderr]   Downloaded strength_reduce v0.2.3
[INFO] [stderr]   Downloaded transpose v0.2.1
[INFO] [stderr]   Downloaded indxvec v1.1.5
[INFO] [stderr]   Downloaded super_mass v0.1.0
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.7
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.2
[INFO] [stderr]   Downloaded libc v0.2.119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21c2389522550e5e23d3f6133a21dbabeaee4ebe23be3d0d466e1d8f845bcde5
[INFO] running `Command { std: "docker" "start" "-a" "21c2389522550e5e23d3f6133a21dbabeaee4ebe23be3d0d466e1d8f845bcde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c2389522550e5e23d3f6133a21dbabeaee4ebe23be3d0d466e1d8f845bcde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c2389522550e5e23d3f6133a21dbabeaee4ebe23be3d0d466e1d8f845bcde5", kill_on_drop: false }`
[INFO] [stdout] 21c2389522550e5e23d3f6133a21dbabeaee4ebe23be3d0d466e1d8f845bcde5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f39726dae9d26d6bac58456b119385f69336cb48d6afd62f9518d2b5ffcae1c
[INFO] running `Command { std: "docker" "start" "-a" "2f39726dae9d26d6bac58456b119385f69336cb48d6afd62f9518d2b5ffcae1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling indxvec v1.1.5
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling transpose v0.2.1
[INFO] [stderr]    Compiling rstats v1.0.13
[INFO] [stderr]    Compiling rustfft v4.1.0
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling super_mass v0.1.0
[INFO] [stderr]    Compiling cutfd_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             match orig_sampl.next() {
[INFO] [stdout] 59 | |                 Some(sample) => match sample {
[INFO] [stdout] 60 | |                     Ok(sample) => Ok(orig_sampl_chunk.push(sample)),
[INFO] [stdout] 61 | |                     Err(err) => Err(err),
[INFO] [stdout] 62 | |                 },
[INFO] [stdout] 63 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 64 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let _ = match orig_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 | /             match cp_sampl.next() {
[INFO] [stdout] 71 | |                 Some(sample) => match sample {
[INFO] [stdout] 72 | |                     Ok(sample) => Ok(cp_sampl_chunk.push(sample)),
[INFO] [stdout] 73 | |                     Err(err) => Err(err),
[INFO] [stdout] 74 | |                 },
[INFO] [stdout] 75 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 76 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let _ = match cp_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | /         match cp_sampl.next() {
[INFO] [stdout] 107 | |             Some(sample) => match sample {
[INFO] [stdout] 108 | |                 Ok(sample) => Ok(cp_sampl_chunk.push(sample as f64)),
[INFO] [stdout] 109 | |                 Err(err) => Err(err),
[INFO] [stdout] 110 | |             },
[INFO] [stdout] 111 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 112 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = match cp_sampl.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 | /         match orig_samples.next() {
[INFO] [stdout] 116 | |             Some(sample) => match sample {
[INFO] [stdout] 117 | |                 Ok(sample) => Ok(window_samples.push(sample as f64)),
[INFO] [stdout] 118 | |                 Err(err) => Err(err),
[INFO] [stdout] 119 | |             },
[INFO] [stdout] 120 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 121 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let _ = match orig_samples.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.26s
[INFO] running `Command { std: "docker" "inspect" "2f39726dae9d26d6bac58456b119385f69336cb48d6afd62f9518d2b5ffcae1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f39726dae9d26d6bac58456b119385f69336cb48d6afd62f9518d2b5ffcae1c", kill_on_drop: false }`
[INFO] [stdout] 2f39726dae9d26d6bac58456b119385f69336cb48d6afd62f9518d2b5ffcae1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e213702386fff9f11a325a64d220967452c149a4c86c55fb482408ef7bb6dbc3
[INFO] running `Command { std: "docker" "start" "-a" "e213702386fff9f11a325a64d220967452c149a4c86c55fb482408ef7bb6dbc3", kill_on_drop: false }`
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             match orig_sampl.next() {
[INFO] [stdout] 59 | |                 Some(sample) => match sample {
[INFO] [stdout] 60 | |                     Ok(sample) => Ok(orig_sampl_chunk.push(sample)),
[INFO] [stdout] 61 | |                     Err(err) => Err(err),
[INFO] [stdout] 62 | |                 },
[INFO] [stdout] 63 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 64 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let _ = match orig_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 | /             match cp_sampl.next() {
[INFO] [stdout] 71 | |                 Some(sample) => match sample {
[INFO] [stdout] 72 | |                     Ok(sample) => Ok(cp_sampl_chunk.push(sample)),
[INFO] [stdout] 73 | |                     Err(err) => Err(err),
[INFO] [stdout] 74 | |                 },
[INFO] [stdout] 75 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 76 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let _ = match cp_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | /         match cp_sampl.next() {
[INFO] [stdout] 107 | |             Some(sample) => match sample {
[INFO] [stdout] 108 | |                 Ok(sample) => Ok(cp_sampl_chunk.push(sample as f64)),
[INFO] [stdout] 109 | |                 Err(err) => Err(err),
[INFO] [stdout] 110 | |             },
[INFO] [stdout] 111 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 112 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = match cp_sampl.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cutfd_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 | /         match orig_samples.next() {
[INFO] [stdout] 116 | |             Some(sample) => match sample {
[INFO] [stdout] 117 | |                 Ok(sample) => Ok(window_samples.push(sample as f64)),
[INFO] [stdout] 118 | |                 Err(err) => Err(err),
[INFO] [stdout] 119 | |             },
[INFO] [stdout] 120 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 121 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let _ = match orig_samples.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             match orig_sampl.next() {
[INFO] [stdout] 59 | |                 Some(sample) => match sample {
[INFO] [stdout] 60 | |                     Ok(sample) => Ok(orig_sampl_chunk.push(sample)),
[INFO] [stdout] 61 | |                     Err(err) => Err(err),
[INFO] [stdout] 62 | |                 },
[INFO] [stdout] 63 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 64 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let _ = match orig_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 | /             match cp_sampl.next() {
[INFO] [stdout] 71 | |                 Some(sample) => match sample {
[INFO] [stdout] 72 | |                     Ok(sample) => Ok(cp_sampl_chunk.push(sample)),
[INFO] [stdout] 73 | |                     Err(err) => Err(err),
[INFO] [stdout] 74 | |                 },
[INFO] [stdout] 75 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 76 | |             };
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let _ = match cp_sampl.next() {
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | /         match cp_sampl.next() {
[INFO] [stdout] 107 | |             Some(sample) => match sample {
[INFO] [stdout] 108 | |                 Ok(sample) => Ok(cp_sampl_chunk.push(sample as f64)),
[INFO] [stdout] 109 | |                 Err(err) => Err(err),
[INFO] [stdout] 110 | |             },
[INFO] [stdout] 111 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 112 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let _ = match cp_sampl.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 | /         match orig_samples.next() {
[INFO] [stdout] 116 | |             Some(sample) => match sample {
[INFO] [stdout] 117 | |                 Ok(sample) => Ok(window_samples.push(sample as f64)),
[INFO] [stdout] 118 | |                 Err(err) => Err(err),
[INFO] [stdout] 119 | |             },
[INFO] [stdout] 120 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stdout] 121 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let _ = match orig_samples.next() {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "e213702386fff9f11a325a64d220967452c149a4c86c55fb482408ef7bb6dbc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e213702386fff9f11a325a64d220967452c149a4c86c55fb482408ef7bb6dbc3", kill_on_drop: false }`
[INFO] [stdout] e213702386fff9f11a325a64d220967452c149a4c86c55fb482408ef7bb6dbc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] adc060e89da61f53ed8727c45aa0f976a108d402b8eaceadcd6ac8cb2b3df59a
[INFO] running `Command { std: "docker" "start" "-a" "adc060e89da61f53ed8727c45aa0f976a108d402b8eaceadcd6ac8cb2b3df59a", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lib.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 | /             match orig_sampl.next() {
[INFO] [stderr] 59 | |                 Some(sample) => match sample {
[INFO] [stderr] 60 | |                     Ok(sample) => Ok(orig_sampl_chunk.push(sample)),
[INFO] [stderr] 61 | |                     Err(err) => Err(err),
[INFO] [stderr] 62 | |                 },
[INFO] [stderr] 63 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stderr] 64 | |             };
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let _ = match orig_sampl.next() {
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lib.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 | /             match cp_sampl.next() {
[INFO] [stderr] 71 | |                 Some(sample) => match sample {
[INFO] [stderr] 72 | |                     Ok(sample) => Ok(cp_sampl_chunk.push(sample)),
[INFO] [stderr] 73 | |                     Err(err) => Err(err),
[INFO] [stderr] 74 | |                 },
[INFO] [stderr] 75 | |                 None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stderr] 76 | |             };
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let _ = match cp_sampl.next() {
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | /         match cp_sampl.next() {
[INFO] [stderr] 107 | |             Some(sample) => match sample {
[INFO] [stderr] 108 | |                 Ok(sample) => Ok(cp_sampl_chunk.push(sample as f64)),
[INFO] [stderr] 109 | |                 Err(err) => Err(err),
[INFO] [stderr] 110 | |             },
[INFO] [stderr] 111 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stderr] 112 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let _ = match cp_sampl.next() {
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 | /         match orig_samples.next() {
[INFO] [stderr] 116 | |             Some(sample) => match sample {
[INFO] [stderr] 117 | |                 Ok(sample) => Ok(window_samples.push(sample as f64)),
[INFO] [stderr] 118 | |                 Err(err) => Err(err),
[INFO] [stderr] 119 | |             },
[INFO] [stderr] 120 | |             None => Err(hound::Error::InvalidSampleFormat),
[INFO] [stderr] 121 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let _ = match orig_samples.next() {
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `cutfd_lib` (lib) generated 4 warnings
[INFO] [stderr] warning: `cutfd_lib` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cutfd_lib-8a17b922af7a5f53)
[INFO] [stderr]    Doc-tests cutfd_lib
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - find_beginning (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - find_beginning (line 22) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (54) panicked at src/lib.rs:4:6:
[INFO] [stdout] Failed to open input waveform: IoError(Os { code: 2, kind: NotFound, message: "No such file or directory" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6162c1ccc602 - std::backtrace_rs::backtrace::libunwind::trace::hff358a60abf734fc
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6162c1ccc602 - std::backtrace_rs::backtrace::trace_unsynchronized::h3b121f916dd95ec6
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6162c1ccc602 - std::sys::backtrace::_print_fmt::hde0a62ded68798e9
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6162c1ccc602 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h93773fc827e3113d
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x6162c1cdb58a - core::fmt::rt::Argument::fmt::h01eff69902dad97f
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x6162c1cdb58a - core::fmt::write::hed7b5c73d82ecb7c
[INFO] [stdout]    6:     0x6162c1cab9a6 - std::io::default_write_fmt::hd49a3027caaa0994
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6162c1cab9a6 - std::io::Write::write_fmt::h6f0185aecf0ed75f
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x6162c1cb22c6 - std::sys::backtrace::BacktraceLock::print::h8b1d6fcc5a56d1a3
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6162c1cb22c6 - std::panicking::default_hook::{{closure}}::h2be84df4f189ae36
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6162c1cb2126 - std::panicking::default_hook::hf0ea8939246f43a9
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x6162c1cb250b - std::panicking::panic_with_hook::hb4bd9ac1123582a0
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x6162c1cb2388 - std::panicking::panic_handler::{{closure}}::hde00dd15f5637fe2
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x6162c1cb0af9 - std::sys::backtrace::__rust_end_short_backtrace::hb72197fa777c1785
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x6162c1ca099d - __rustc[4425a7e20b4c8619]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x6162c1cde51c - core::panicking::panic_fmt::ha59b517dd231f4da
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x6162c1cdde72 - core::result::unwrap_failed::hf2d1f30a3ac850fc
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x6162c1c9a9d1 - core::result::Result<T,E>::expect::h95663f1c5c67eee0
[INFO] [stdout]   18:     0x6162c1c9f8dc - rust_out::main::_doctest_main_src_lib_rs_22_0::h171ff283cb9c6d89
[INFO] [stdout]   19:     0x6162c1c9f886 - rust_out::main::h1d5d9cc717612345
[INFO] [stdout]   20:     0x6162c1c99e03 - core::ops::function::FnOnce::call_once::he8fbd57a2bdb8de4
[INFO] [stdout]   21:     0x6162c1c99986 - std::sys::backtrace::__rust_begin_short_backtrace::h3d7d4fbbe21d8c6a
[INFO] [stdout]   22:     0x6162c1c998f9 - std::rt::lang_start::{{closure}}::he8b303f9f75577a3
[INFO] [stdout]   23:     0x6162c1cacba6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6cf6e1b4b1f98539
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x6162c1cacba6 - std::panicking::catch_unwind::do_call::h174840425564edbd
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stdout]   25:     0x6162c1cacba6 - std::panicking::catch_unwind::had0fde8b5d7282ba
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stdout]   26:     0x6162c1cacba6 - std::panic::catch_unwind::hdb1c6876cc6d1988
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x6162c1cacba6 - std::rt::lang_start_internal::{{closure}}::h9a3342d69e945811
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x6162c1cacba6 - std::panicking::catch_unwind::do_call::haba617e1655662f0
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x6162c1cacba6 - std::panicking::catch_unwind::hdcb3b0cdc4ef023b
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x6162c1cacba6 - std::panic::catch_unwind::hd7496902866db161
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6162c1cacba6 - std::rt::lang_start_internal::h9f282d832ae47dd5
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x6162c1c998e1 - std::rt::lang_start::h0508fb788dac5655
[INFO] [stdout]   33:     0x6162c1c9fbd5 - main
[INFO] [stdout]   34:     0x7dab59b9e1ca - <unknown>
[INFO] [stdout]   35:     0x7dab59b9e28b - __libc_start_main
[INFO] [stdout]   36:     0x6162c1c989a5 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - find_beginning (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "adc060e89da61f53ed8727c45aa0f976a108d402b8eaceadcd6ac8cb2b3df59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc060e89da61f53ed8727c45aa0f976a108d402b8eaceadcd6ac8cb2b3df59a", kill_on_drop: false }`
[INFO] [stdout] adc060e89da61f53ed8727c45aa0f976a108d402b8eaceadcd6ac8cb2b3df59a
