[INFO] fetching crate pitch-detection 0.3.0...
[INFO] checking pitch-detection-0.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate pitch-detection 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate pitch-detection 0.3.0
[INFO] finished tweaking crates.io crate pitch-detection 0.3.0
[INFO] tweaked toml for crates.io crate pitch-detection 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pitch-detection 0.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1a66e102470a4e068b25b82197df5d985effdea47b8360ba054c65c4be18716
[INFO] running `Command { std: "docker" "start" "-a" "f1a66e102470a4e068b25b82197df5d985effdea47b8360ba054c65c4be18716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1a66e102470a4e068b25b82197df5d985effdea47b8360ba054c65c4be18716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1a66e102470a4e068b25b82197df5d985effdea47b8360ba054c65c4be18716", kill_on_drop: false }`
[INFO] [stdout] f1a66e102470a4e068b25b82197df5d985effdea47b8360ba054c65c4be18716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78fc698dd28663ffda2210f7a72efb846c78ec7fda3ab1c0e3b881b29c35e35b
[INFO] running `Command { std: "docker" "start" "-a" "78fc698dd28663ffda2210f7a72efb846c78ec7fda3ab1c0e3b881b29c35e35b", kill_on_drop: false }`
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking hound v3.5.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking rustfft v6.4.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking pitch-detection v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/utils/buffer.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     for mut s in arr {
[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] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/utils/buffer.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     for mut s in arr {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.21s
[INFO] running `Command { std: "docker" "inspect" "78fc698dd28663ffda2210f7a72efb846c78ec7fda3ab1c0e3b881b29c35e35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78fc698dd28663ffda2210f7a72efb846c78ec7fda3ab1c0e3b881b29c35e35b", kill_on_drop: false }`
[INFO] [stdout] 78fc698dd28663ffda2210f7a72efb846c78ec7fda3ab1c0e3b881b29c35e35b