[INFO] cloning repository https://github.com/Mr-Helpful/acoding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mr-Helpful/acoding" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Facoding", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Facoding'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53b10e7c0f9b39dc499891070ada0d12bd2e6eda
[INFO] checking Mr-Helpful/acoding against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Facoding" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Mr-Helpful/acoding
[INFO] finished tweaking git repo https://github.com/Mr-Helpful/acoding
[INFO] tweaked toml for git repo https://github.com/Mr-Helpful/acoding written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mr-Helpful/acoding on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mr-Helpful/acoding 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e3a9d04b698a24165abae41aef6cb79c0c117540b12d73342a700ec228a3bf8
[INFO] running `Command { std: "docker" "start" "-a" "6e3a9d04b698a24165abae41aef6cb79c0c117540b12d73342a700ec228a3bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e3a9d04b698a24165abae41aef6cb79c0c117540b12d73342a700ec228a3bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e3a9d04b698a24165abae41aef6cb79c0c117540b12d73342a700ec228a3bf8", kill_on_drop: false }`
[INFO] [stdout] 6e3a9d04b698a24165abae41aef6cb79c0c117540b12d73342a700ec228a3bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74ec77e3ff3e76ae358aee42c55acfab66b1ac3b70aa0c1cae173080b2edbc74
[INFO] running `Command { std: "docker" "start" "-a" "74ec77e3ff3e76ae358aee42c55acfab66b1ac3b70aa0c1cae173080b2edbc74", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stderr]     Checking compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::default`
[INFO] [stdout]  --> src/arithmetic/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoBits`, `IteratorTransforms`, and `Transform`
[INFO] [stdout]  --> src/arithmetic/test.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{test::CompressorTests, IntoBits, IteratorTransforms, Transform};
[INFO] [stdout]   |                                    ^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREQ_MAX` is never used
[INFO] [stdout]  --> src/arithmetic/mod.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |   pub const FREQ_MAX: Code = Code::MAX / (CODE_MAX + 1);
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add` and `update` are never used
[INFO] [stdout]   --> src/arithmetic/frequency.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl FreqTable {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 50 |   /// Adds `value` to the frequency of a single `item`
[INFO] [stdout] 51 |   pub fn add(&mut self, item: u8, value: Code) -> Option<()> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |   pub fn update(&mut self, mut updates: [Code; 256]) -> Option<()> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREQ_MAX` is never used
[INFO] [stdout]  --> src/arithmetic/mod.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |   pub const FREQ_MAX: Code = Code::MAX / (CODE_MAX + 1);
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add` and `update` are never used
[INFO] [stdout]   --> src/arithmetic/frequency.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl FreqTable {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 50 |   /// Adds `value` to the frequency of a single `item`
[INFO] [stdout] 51 |   pub fn add(&mut self, item: u8, value: Code) -> Option<()> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |   pub fn update(&mut self, mut updates: [Code; 256]) -> Option<()> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.12s
[INFO] running `Command { std: "docker" "inspect" "74ec77e3ff3e76ae358aee42c55acfab66b1ac3b70aa0c1cae173080b2edbc74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ec77e3ff3e76ae358aee42c55acfab66b1ac3b70aa0c1cae173080b2edbc74", kill_on_drop: false }`
[INFO] [stdout] 74ec77e3ff3e76ae358aee42c55acfab66b1ac3b70aa0c1cae173080b2edbc74