[INFO] cloning repository https://github.com/ModernRetroDev/vintage-cc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ModernRetroDev/vintage-cc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FModernRetroDev%2Fvintage-cc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FModernRetroDev%2Fvintage-cc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a8af13d47c414174023b6f493ceae8ada500600
[INFO] checking ModernRetroDev/vintage-cc against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FModernRetroDev%2Fvintage-cc" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ModernRetroDev/vintage-cc
[INFO] finished tweaking git repo https://github.com/ModernRetroDev/vintage-cc
[INFO] tweaked toml for git repo https://github.com/ModernRetroDev/vintage-cc written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ModernRetroDev/vintage-cc on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ModernRetroDev/vintage-cc 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b
[INFO] running `Command { std: "docker" "start" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b", 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" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b", 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" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking vintagecc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]    --> src/vhl/process_let.rs:535:17
[INFO] [stdout]     |
[INFO] [stdout] 535 |                 start += 1;
[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: value assigned to `start` is never read
[INFO] [stdout]    --> src/vhl/process_let.rs:535:17
[INFO] [stdout]     |
[INFO] [stdout] 535 |                 start += 1;
[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] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/vhl/process_eval_eq_rpn.rs:364:24
[INFO] [stdout]     |
[INFO] [stdout] 364 |     while retvar_pos < req_rets.into() {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 364 -     while retvar_pos < req_rets.into() {
[INFO] [stdout] 364 +     while retvar_pos < req_rets {
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 364 -     while retvar_pos < req_rets.into() {
[INFO] [stdout] 364 +     while retvar_pos < <usize as Into<_>>::into(req_rets) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vintagecc` (bin "vintagecc") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/vhl/process_eval_eq_rpn.rs:364:24
[INFO] [stdout]     |
[INFO] [stdout] 364 |     while retvar_pos < req_rets.into() {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 364 -     while retvar_pos < req_rets.into() {
[INFO] [stdout] 364 +     while retvar_pos < req_rets {
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 364 -     while retvar_pos < req_rets.into() {
[INFO] [stdout] 364 +     while retvar_pos < <usize as Into<_>>::into(req_rets) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vintagecc` (bin "vintagecc" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b", kill_on_drop: false }`
[INFO] [stdout] b98f30aa0958423981966d69a98a7b4a3749ccc580deda93b379141ffd13f34b