[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#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjthistle%2Fcompressor" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jthistle/compressor on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca401ab98f2225c6233c4e6e6097a2ecd72ceb791bfb38e4b0c1149c0e180308
[INFO] running `Command { std: "docker" "start" "-a" "ca401ab98f2225c6233c4e6e6097a2ecd72ceb791bfb38e4b0c1149c0e180308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca401ab98f2225c6233c4e6e6097a2ecd72ceb791bfb38e4b0c1149c0e180308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca401ab98f2225c6233c4e6e6097a2ecd72ceb791bfb38e4b0c1149c0e180308", kill_on_drop: false }`
[INFO] [stdout] ca401ab98f2225c6233c4e6e6097a2ecd72ceb791bfb38e4b0c1149c0e180308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82ec993c30613c02664700a35857489d3b3e3dc2e44a3acc0244e899e37758cb
[INFO] running `Command { std: "docker" "start" "-a" "82ec993c30613c02664700a35857489d3b3e3dc2e44a3acc0244e899e37758cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[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]    |                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[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] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]   --> src/encode/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]   --> src/encode/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]    --> src/decode/mod.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]    --> src/decode/mod.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]    --> src/decode/mod.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]    --> src/decode/mod.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] error: could not compile `compressor-rust` (bin "compressor-rust") due to 6 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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]    |                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[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] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]   --> src/encode/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]   --> src/encode/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]    --> src/decode/mod.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]    --> src/decode/mod.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, Box<dyn std::error::Error>>
[INFO] [stdout]    --> src/decode/mod.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Box<dyn std::error::Error>, Infallible>
[INFO] [stdout]    --> src/decode/mod.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |         _ => { return Err("Invalid storage type".try_into()?) }
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] error: could not compile `compressor-rust` (bin "compressor-rust" test) due to 6 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "82ec993c30613c02664700a35857489d3b3e3dc2e44a3acc0244e899e37758cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ec993c30613c02664700a35857489d3b3e3dc2e44a3acc0244e899e37758cb", kill_on_drop: false }`
[INFO] [stdout] 82ec993c30613c02664700a35857489d3b3e3dc2e44a3acc0244e899e37758cb