[INFO] fetching crate antlr4rust 0.5.2...
[INFO] checking antlr4rust-0.5.2 against master#08cd08fbef8c6663b052d8d9e4930d5696cbb8a7 for 150662-leaf-spurious
[INFO] extracting crate antlr4rust 0.5.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate antlr4rust 0.5.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate antlr4rust 0.5.2
[INFO] tweaked toml for crates.io crate antlr4rust 0.5.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate antlr4rust 0.5.2 on toolchain 08cd08fbef8c6663b052d8d9e4930d5696cbb8a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate antlr4rust 0.5.2 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" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.103
[INFO] [stderr]   Downloaded uuid v1.18.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.103
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.103
[INFO] [stderr]   Downloaded typed-arena v2.0.2
[INFO] [stderr]   Downloaded cfg-if v1.0.3
[INFO] [stderr]   Downloaded better_any v0.2.0
[INFO] [stderr]   Downloaded murmur3 v0.4.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.103
[INFO] [stderr]   Downloaded js-sys v0.3.80
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.103
[INFO] [stderr]   Downloaded libc v0.2.175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23936aa44d9cae003bea171aa1f9aff9e0230513fda2f95993e65f4a0750efa1
[INFO] running `Command { std: "docker" "start" "-a" "23936aa44d9cae003bea171aa1f9aff9e0230513fda2f95993e65f4a0750efa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23936aa44d9cae003bea171aa1f9aff9e0230513fda2f95993e65f4a0750efa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23936aa44d9cae003bea171aa1f9aff9e0230513fda2f95993e65f4a0750efa1", kill_on_drop: false }`
[INFO] [stdout] 23936aa44d9cae003bea171aa1f9aff9e0230513fda2f95993e65f4a0750efa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+08cd08fbef8c6663b052d8d9e4930d5696cbb8a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8335c1931e6e9274564137a09a695f295f02a1a8f2ce05eeb9116e2ea9a579b1
[INFO] running `Command { std: "docker" "start" "-a" "8335c1931e6e9274564137a09a695f295f02a1a8f2ce05eeb9116e2ea9a579b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking better_any v0.2.0
[INFO] [stderr]     Checking murmur3 v0.4.1
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking antlr4rust v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> tests/perf.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[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 import: `std::io::Read`
[INFO] [stdout]   --> tests/general_tests.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use std::io::Read;
[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 variable: `node`
[INFO] [stdout]    --> tests/visitors_tests.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 node: &<Self::Node as ParserNodeType<'_>>::Type,
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> tests/visitors_tests.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 node: &<Self::Node as ParserNodeType<'_>>::Type,
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current`
[INFO] [stdout]    --> tests/visitors_tests.rs:180:17
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 current: &Self::Return,
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aggregate`
[INFO] [stdout]    --> tests/visitors_tests.rs:206:17
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 aggregate: Self::Return,
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_aggregate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next`
[INFO] [stdout]    --> tests/visitors_tests.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 next: Self::Return,
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestVisitorUnit` is never constructed
[INFO] [stdout]    --> tests/visitors_tests.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |         struct TestVisitorUnit(String);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_should_not_visit_EOF` should have a snake case name
[INFO] [stdout]    --> tests/visitors_tests.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn test_should_not_visit_EOF() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_should_not_visit_eof`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "8335c1931e6e9274564137a09a695f295f02a1a8f2ce05eeb9116e2ea9a579b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8335c1931e6e9274564137a09a695f295f02a1a8f2ce05eeb9116e2ea9a579b1", kill_on_drop: false }`
[INFO] [stdout] 8335c1931e6e9274564137a09a695f295f02a1a8f2ce05eeb9116e2ea9a579b1