[INFO] cloning repository https://github.com/jthistle/compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jthistle/compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjthistle%2Fcompressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjthistle%2Fcompressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8e716fad79154006c03ad88469143af1d1f315c
[INFO] checking jthistle/compressor against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjthistle%2Fcompressor" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jthistle/compressor
[INFO] finished tweaking git repo https://github.com/jthistle/compressor
[INFO] tweaked toml for git repo https://github.com/jthistle/compressor written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jthistle/compressor on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jthistle/compressor 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" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "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 cc v1.0.70
[INFO] [stderr]   Downloaded pkg-config v0.3.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14
[INFO] running `Command { std: "docker" "start" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]     Checking compressor-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `isample` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type isample = i16;
[INFO] [stdout]    |          ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Isample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `isample` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type isample = i16;
[INFO] [stdout]    |          ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Isample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `offset` is never read
[INFO] [stdout]   --> src/args.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut offset = 0;
[INFO] [stdout]    |                      ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 68 |         offset = 3;
[INFO] [stdout]    |         ---------- `offset` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `form_type` is never read
[INFO] [stdout]   --> src/encode/riff.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct RiffChunk {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     form_type: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RiffChunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/encode/fft.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let N: usize = input.len();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/decode/fft.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let N: usize = input.len();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `offset` is never read
[INFO] [stdout]   --> src/args.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut offset = 0;
[INFO] [stdout]    |                      ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 68 |         offset = 3;
[INFO] [stdout]    |         ---------- `offset` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `form_type` is never read
[INFO] [stdout]   --> src/encode/riff.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct RiffChunk {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     form_type: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RiffChunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/encode/fft.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let N: usize = input.len();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/decode/fft.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let N: usize = input.len();
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.55s
[INFO] running `Command { std: "docker" "inspect" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14", kill_on_drop: false }`
[INFO] [stdout] 4e131b55bd6c9d1e1217ddf8a498c13291dbc4f07dbed0b27d0335a9514d5e14
