[INFO] fetching crate antlr4rust 0.5.2...
[INFO] checking antlr4rust-0.5.2 against master#035b01b794602d5861daa43ac792f372f8981ed7 for 152214-denied-retry-0
[INFO] extracting crate antlr4rust 0.5.2 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate antlr4rust 0.5.2 on toolchain 035b01b794602d5861daa43ac792f372f8981ed7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "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" "+035b01b794602d5861daa43ac792f372f8981ed7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded better_any v0.2.0
[INFO] [stderr]   Downloaded murmur3 v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 461918bd2e868d366fa156ed0e49af95748ff096057fb8f984b5b22e93fbf62d
[INFO] running `Command { std: "docker" "start" "-a" "461918bd2e868d366fa156ed0e49af95748ff096057fb8f984b5b22e93fbf62d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "461918bd2e868d366fa156ed0e49af95748ff096057fb8f984b5b22e93fbf62d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461918bd2e868d366fa156ed0e49af95748ff096057fb8f984b5b22e93fbf62d", kill_on_drop: false }`
[INFO] [stdout] 461918bd2e868d366fa156ed0e49af95748ff096057fb8f984b5b22e93fbf62d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c4aec2200bd221511df7090b3731131216af010933cb61ada49fe5eac8b0924
[INFO] running `Command { std: "docker" "start" "-a" "6c4aec2200bd221511df7090b3731131216af010933cb61ada49fe5eac8b0924", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking better_any v0.2.0
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking murmur3 v0.4.1
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[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 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] [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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.79s
[INFO] running `Command { std: "docker" "inspect" "6c4aec2200bd221511df7090b3731131216af010933cb61ada49fe5eac8b0924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4aec2200bd221511df7090b3731131216af010933cb61ada49fe5eac8b0924", kill_on_drop: false }`
[INFO] [stdout] 6c4aec2200bd221511df7090b3731131216af010933cb61ada49fe5eac8b0924