[INFO] fetching crate grammarsmith 0.4.0...
[INFO] checking grammarsmith-0.4.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate grammarsmith 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate grammarsmith 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate grammarsmith 0.4.0
[INFO] tweaked toml for crates.io crate grammarsmith 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grammarsmith 0.4.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b1dbd05383ae231f99aaf34a112b4d7175f7a7e6f16fd984a587d2efc58386f
[INFO] running `Command { std: "docker" "start" "-a" "7b1dbd05383ae231f99aaf34a112b4d7175f7a7e6f16fd984a587d2efc58386f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b1dbd05383ae231f99aaf34a112b4d7175f7a7e6f16fd984a587d2efc58386f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1dbd05383ae231f99aaf34a112b4d7175f7a7e6f16fd984a587d2efc58386f", kill_on_drop: false }`
[INFO] [stdout] 7b1dbd05383ae231f99aaf34a112b4d7175f7a7e6f16fd984a587d2efc58386f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a3e897e397f9f07c249b7128a44aeb57dae0270cde71937aa40db4fb683fcde
[INFO] running `Command { std: "docker" "start" "-a" "3a3e897e397f9f07c249b7128a44aeb57dae0270cde71937aa40db4fb683fcde", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking grammarsmith v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(buf: &str) -> Scanner {
[INFO] [stdout]    |                     ^^^^     ------- the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 25 |     pub fn new(buf: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking tempfile v3.21.0
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking proptest v1.7.0
[INFO] [stdout] warning: method `is_operator` is never used
[INFO] [stdout]    --> tests/calculator_test.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 160 | impl CalculatorToken {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] 161 |     fn is_operator(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Parenthesized` is never constructed
[INFO] [stdout]    --> tests/calculator_test.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 172 | enum CalculatorAST {
[INFO] [stdout]     |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 179 |     Parenthesized(Box<CalculatorAST>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(buf: &str) -> Scanner {
[INFO] [stdout]    |                     ^^^^     ------- the same lifetime is hidden here
[INFO] [stdout]    |                     |
[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] 25 |     pub fn new(buf: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "3a3e897e397f9f07c249b7128a44aeb57dae0270cde71937aa40db4fb683fcde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3e897e397f9f07c249b7128a44aeb57dae0270cde71937aa40db4fb683fcde", kill_on_drop: false }`
[INFO] [stdout] 3a3e897e397f9f07c249b7128a44aeb57dae0270cde71937aa40db4fb683fcde