[INFO] cloning repository https://github.com/aklipf/grobner-basis-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aklipf/grobner-basis-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklipf%2Fgrobner-basis-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklipf%2Fgrobner-basis-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cec652b4fdb2c81d6b73e5ca298562a9e55aa8a4
[INFO] checking aklipf/grobner-basis-rs against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faklipf%2Fgrobner-basis-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aklipf/grobner-basis-rs
[INFO] finished tweaking git repo https://github.com/aklipf/grobner-basis-rs
[INFO] tweaked toml for git repo https://github.com/aklipf/grobner-basis-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aklipf/grobner-basis-rs 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/aklipf/grobner-basis-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7
[INFO] running `Command { std: "docker" "start" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7", 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" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7", 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" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking grobner-basis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/poly_iter.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter(&self) -> MonomialRefIter<Iter<'_, OrderedTerm<V, O>, R>, R, V, O> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |         |                    |
[INFO] [stdout]     |                 |         |                    the same lifetime is elided here
[INFO] [stdout]     |                 |         the same lifetime is hidden here
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter(&self) -> MonomialRefIter<'_, Iter<'_, OrderedTerm<V, O>, R>, R, V, O> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `term::Term<variable::Var>`
[INFO] [stdout]    --> src/polynomial.rs:299:27
[INFO] [stdout]     |
[INFO] [stdout] 299 |         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[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] 299 -         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout] 299 +         assert!(Lex::cmp(&r.lead_term(), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 299 -         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout] 299 +         assert!(Lex::cmp(&<term::Term<variable::Var> as Into<_>>::into(r.lead_term()), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `term::Term<variable::Var>`
[INFO] [stdout]    --> src/polynomial.rs:299:50
[INFO] [stdout]     |
[INFO] [stdout] 299 |         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[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] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 299 -         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout] 299 +         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term()) == Ordering::Less);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 299 -         assert!(Lex::cmp(&r.lead_term().into(), &g.lead_term().into()) == Ordering::Less);
[INFO] [stdout] 299 +         assert!(Lex::cmp(&r.lead_term().into(), &<term::Term<variable::Var> as Into<_>>::into(g.lead_term())) == Ordering::Less);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/poly_iter.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter(&self) -> MonomialRefIter<Iter<'_, OrderedTerm<V, O>, R>, R, V, O> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |         |                    |
[INFO] [stdout]     |                 |         |                    the same lifetime is elided here
[INFO] [stdout]     |                 |         the same lifetime is hidden here
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter(&self) -> MonomialRefIter<'_, Iter<'_, OrderedTerm<V, O>, R>, R, V, O> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grobner-basis` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7", kill_on_drop: false }`
[INFO] [stdout] f909c2fd5291a8fb5a354000b1d9289a2dbc5a08500dfa69d1813fb5a8147be7
