[INFO] fetching crate codec2 0.2.0...
[INFO] checking codec2-0.2.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate codec2 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate codec2 0.2.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate codec2 0.2.0
[INFO] finished tweaking crates.io crate codec2 0.2.0
[INFO] tweaked toml for crates.io crate codec2 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d136067744bcc06ecd8570bfcf0b960a688409ff5e65127911dee303d352efb
[INFO] running `Command { std: "docker" "start" "-a" "1d136067744bcc06ecd8570bfcf0b960a688409ff5e65127911dee303d352efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d136067744bcc06ecd8570bfcf0b960a688409ff5e65127911dee303d352efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d136067744bcc06ecd8570bfcf0b960a688409ff5e65127911dee303d352efb", kill_on_drop: false }`
[INFO] [stdout] 1d136067744bcc06ecd8570bfcf0b960a688409ff5e65127911dee303d352efb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f293b78332882f49ce0f7f73c5194046320fec54ae1bab32ca2e799b86c78d8c
[INFO] running `Command { std: "docker" "start" "-a" "f293b78332882f49ce0f7f73c5194046320fec54ae1bab32ca2e799b86c78d8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking codec2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `Fs`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Fs: i32,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bpf_buf`
[INFO] [stdout]    --> src/lib.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hpf_states`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gray`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `smoothing`
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `se`
[INFO] [stdout]    --> src/lib.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     se: f32,        //  running sum of squared error
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nse`
[INFO] [stdout]    --> src/lib.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `post_filter_en`
[INFO] [stdout]    --> src/lib.rs:458:5
[INFO] [stdout]     |
[INFO] [stdout] 458 |     post_filter_en: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stdout] warning: field is never read: `Fs`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     Fs: i32,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bpf_buf`
[INFO] [stdout]    --> src/lib.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     bpf_buf: Vec<f32>,             //  buffer for band pass filter
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hpf_states`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     hpf_states: [f32; 2],          //  high pass filter states
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `gray`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     gray: i32,                     //  non-zero for gray encoding
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `smoothing`
[INFO] [stdout]    --> src/lib.rs:455:5
[INFO] [stdout]     |
[INFO] [stdout] 455 |     smoothing: i32, //  enable smoothing for channels with errors
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `se`
[INFO] [stdout]    --> src/lib.rs:456:5
[INFO] [stdout]     |
[INFO] [stdout] 456 |     se: f32,        //  running sum of squared error
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nse`
[INFO] [stdout]    --> src/lib.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 |     nse: u32,       //  number of terms in sum
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `post_filter_en`
[INFO] [stdout]    --> src/lib.rs:458:5
[INFO] [stdout]     |
[INFO] [stdout] 458 |     post_filter_en: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.62s
[INFO] running `Command { std: "docker" "inspect" "f293b78332882f49ce0f7f73c5194046320fec54ae1bab32ca2e799b86c78d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f293b78332882f49ce0f7f73c5194046320fec54ae1bab32ca2e799b86c78d8c", kill_on_drop: false }`
[INFO] [stdout] f293b78332882f49ce0f7f73c5194046320fec54ae1bab32ca2e799b86c78d8c