[INFO] fetching crate grammar_tool 0.1.0...
[INFO] checking grammar_tool-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate grammar_tool 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate grammar_tool 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grammar_tool 0.1.0
[INFO] finished tweaking crates.io crate grammar_tool 0.1.0
[INFO] tweaked toml for crates.io crate grammar_tool 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate grammar_tool 0.1.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.4
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
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[INFO] [stderr]   Downloaded serde v1.0.103
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[INFO] [stderr]   Downloaded string_cache v0.7.5
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc0d31d75f737e2c10bf755f3b26e787851b1f66f8387051e9ed2e0ecd163af5
[INFO] running `Command { std: "docker" "start" "-a" "dc0d31d75f737e2c10bf755f3b26e787851b1f66f8387051e9ed2e0ecd163af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc0d31d75f737e2c10bf755f3b26e787851b1f66f8387051e9ed2e0ecd163af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0d31d75f737e2c10bf755f3b26e787851b1f66f8387051e9ed2e0ecd163af5", kill_on_drop: false }`
[INFO] [stdout] dc0d31d75f737e2c10bf755f3b26e787851b1f66f8387051e9ed2e0ecd163af5
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22720f171069b8f701c3b4c78706bd532c257cc273234fad664663647bc223c5
[INFO] running `Command { std: "docker" "start" "-a" "22720f171069b8f701c3b4c78706bd532c257cc273234fad664663647bc223c5", kill_on_drop: false }`
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[INFO] [stderr]     Checking regex v1.3.1
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[INFO] [stderr]    Compiling serde_derive v1.0.103
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[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling grammar_tool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/grammar_tool-f784616a557e7fb1/out/input_body.rs:1679:8
[INFO] [stdout]      |
[INFO] [stdout] 1678 | pub trait __ToTriple<'input, > {
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 1679 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, &'static str>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/grammar_tool-f784616a557e7fb1/out/input_body.rs:1679:8
[INFO] [stdout]      |
[INFO] [stdout] 1678 | pub trait __ToTriple<'input, > {
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 1679 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, &'static str>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `declared_terminals` is never read
[INFO] [stdout]   --> src/grammar.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Grammar {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 19 |     pub start: String,
[INFO] [stdout] 20 |     pub declared_terminals: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Grammar` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `declared_terminals` is never read
[INFO] [stdout]   --> src/grammar.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Grammar {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 19 |     pub start: String,
[INFO] [stdout] 20 |     pub declared_terminals: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Grammar` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "22720f171069b8f701c3b4c78706bd532c257cc273234fad664663647bc223c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22720f171069b8f701c3b4c78706bd532c257cc273234fad664663647bc223c5", kill_on_drop: false }`
[INFO] [stdout] 22720f171069b8f701c3b4c78706bd532c257cc273234fad664663647bc223c5