[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] checking Ryu1845/cutfd_lib against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyu1845%2Fcutfd_lib" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ryu1845/cutfd_lib on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Ryu1845/cutfd_lib against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyu1845%2Fcutfd_lib" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ryu1845/cutfd_lib on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded super_mass v0.1.0
[INFO] [stderr]   Downloaded indxvec v1.1.5
[INFO] [stderr]   Downloaded getrandom v0.2.5
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.7
[INFO] [stderr]   Downloaded rustfft v4.1.0
[INFO] [stderr]   Downloaded libc v0.2.119
[INFO] [stderr]   Downloaded rstats v1.0.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a33f82638b129ceb3dd9903dd6deba17680408c7555ffcd6244ce92290dcee0
[INFO] running `Command { std: "docker" "start" "-a" "0a33f82638b129ceb3dd9903dd6deba17680408c7555ffcd6244ce92290dcee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a33f82638b129ceb3dd9903dd6deba17680408c7555ffcd6244ce92290dcee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a33f82638b129ceb3dd9903dd6deba17680408c7555ffcd6244ce92290dcee0", kill_on_drop: false }`
[INFO] [stdout] 0a33f82638b129ceb3dd9903dd6deba17680408c7555ffcd6244ce92290dcee0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacd1ec785acb0cf4e0c652e9ca24b36c0c373718350b86b01236a059098b241
[INFO] running `Command { std: "docker" "start" "-a" "bacd1ec785acb0cf4e0c652e9ca24b36c0c373718350b86b01236a059098b241", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[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]     Checking strength_reduce v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking indxvec v1.1.5
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking rstats v1.0.13
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking transpose v0.2.1
[INFO] [stderr]     Checking rustfft v4.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking super_mass v0.1.0
[INFO] [stderr]     Checking 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] [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 10.41s
[INFO] running `Command { std: "docker" "inspect" "bacd1ec785acb0cf4e0c652e9ca24b36c0c373718350b86b01236a059098b241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacd1ec785acb0cf4e0c652e9ca24b36c0c373718350b86b01236a059098b241", kill_on_drop: false }`
[INFO] [stdout] bacd1ec785acb0cf4e0c652e9ca24b36c0c373718350b86b01236a059098b241