[INFO] cloning repository https://github.com/UsQuake/wasi_pyrb_diff_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UsQuake/wasi_pyrb_diff_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Fwasi_pyrb_diff_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Fwasi_pyrb_diff_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5ca04e4de6979846612466ced7867750547fb7c
[INFO] checking UsQuake/wasi_pyrb_diff_test against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Fwasi_pyrb_diff_test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UsQuake/wasi_pyrb_diff_test on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/UsQuake/wasi_pyrb_diff_test
[INFO] finished tweaking git repo https://github.com/UsQuake/wasi_pyrb_diff_test
[INFO] tweaked toml for git repo https://github.com/UsQuake/wasi_pyrb_diff_test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/UsQuake/wasi_pyrb_diff_test 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c0eb970293dda11fbaa5430cea78f5514a342ad8955067f3038ae950de147a9c
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[INFO] [stdout] warning: unused import: `regex::*`
[INFO] [stdout]  --> src/grammar/test.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use regex::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `expansion` is never read
[INFO] [stdout]    --> src/grammar/mod.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         expansion = Union::OnlyA(sub_exp.clone());
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `expansion` is never read
[INFO] [stdout]    --> src/grammar/mod.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         expansion = Union::OnlyA(sub_exp.clone());
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/grammar_fuzzer/mod.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         node: &DerivationTree,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expansion`
[INFO] [stdout]    --> src/grammar_fuzzer/mod.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         expansion: &Expansion,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/grammar_fuzzer/mod.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         node: &DerivationTree,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expansion`
[INFO] [stdout]    --> src/grammar_fuzzer/mod.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         expansion: &Expansion,
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_grammar` is never used
[INFO] [stdout]    --> src/grammar/mod.rs:405:4
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn trim_grammar<'l_use>(grammar: &Grammar<'l_use>, start_symbol: &'l_use str) -> Grammar<'l_use> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_opts` is never used
[INFO] [stdout]   --> src/grammar/options.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn set_opts<'l_use>(
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_grammar` is never used
[INFO] [stdout]    --> src/grammar/mod.rs:405:4
[INFO] [stdout]     |
[INFO] [stdout] 405 | fn trim_grammar<'l_use>(grammar: &Grammar<'l_use>, start_symbol: &'l_use str) -> Grammar<'l_use> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_opts` is never used
[INFO] [stdout]   --> src/grammar/options.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn set_opts<'l_use>(
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn std::any::Any` instead of cloning the inner type
[INFO] [stdout]   --> src/grammar/options.rs:34:38
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Some(ref_ref) => Some(ref_ref.clone()),
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn std::any::Any` instead of cloning the inner type
[INFO] [stdout]   --> src/grammar/options.rs:34:38
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Some(ref_ref) => Some(ref_ref.clone()),
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.37s
[INFO] running `Command { std: "docker" "inspect" "4bd1e3adb088fb313415790e0b8c197db06cd784aa53b602942cd5f311af7393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd1e3adb088fb313415790e0b8c197db06cd784aa53b602942cd5f311af7393", kill_on_drop: false }`
[INFO] [stdout] 4bd1e3adb088fb313415790e0b8c197db06cd784aa53b602942cd5f311af7393