[INFO] fetching crate nano_parser_gen_macro 0.2.1...
[INFO] checking nano_parser_gen_macro-0.2.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate nano_parser_gen_macro 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate nano_parser_gen_macro 0.2.1
[INFO] finished tweaking crates.io crate nano_parser_gen_macro 0.2.1
[INFO] tweaked toml for crates.io crate nano_parser_gen_macro 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nano_parser_gen_macro 0.2.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77f9f2a674f5a32158b1fd6f994bd67b9c5aa495ad7f7a66362761fb5653adea
[INFO] running `Command { std: "docker" "start" "-a" "77f9f2a674f5a32158b1fd6f994bd67b9c5aa495ad7f7a66362761fb5653adea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77f9f2a674f5a32158b1fd6f994bd67b9c5aa495ad7f7a66362761fb5653adea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77f9f2a674f5a32158b1fd6f994bd67b9c5aa495ad7f7a66362761fb5653adea", kill_on_drop: false }`
[INFO] [stdout] 77f9f2a674f5a32158b1fd6f994bd67b9c5aa495ad7f7a66362761fb5653adea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64dbf92b0ff31dff4e3770c17660e4a4059a55f1f2da9a2350eb9a66f96e25da
[INFO] running `Command { std: "docker" "start" "-a" "64dbf92b0ff31dff4e3770c17660e4a4059a55f1f2da9a2350eb9a66f96e25da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking nano_parser_gen_macro v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `eq_token` is never read
[INFO] [stdout]   --> src/ast.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct TokenDeclRegex {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 24 |     pub name: Ident,
[INFO] [stdout] 25 |     pub eq_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Epsilon(Ident),
[INFO] [stdout]     |     ------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 100 -     Epsilon(Ident),
[INFO] [stdout] 100 +     Epsilon(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:137:10
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Pipe(Token![|]),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 137 -     Pipe(Token![|]),
[INFO] [stdout] 137 +     Pipe(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:138:10
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Semi(Token![;]),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 138 -     Semi(Token![;]),
[INFO] [stdout] 138 +     Semi(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]    --> src/ast.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub struct SubRule {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 142 |     pub entities: Vec<RuleEntity>,
[INFO] [stdout] 143 |     pub end: PipeOrSemi,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `coloncolon` and `eq` are never read
[INFO] [stdout]    --> src/ast.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Rule {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 147 |     pub left: Ident,
[INFO] [stdout] 148 |     pub coloncolon: Token![::],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 149 |     pub eq: Token![=],
[INFO] [stdout]     |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `eq_token` is never read
[INFO] [stdout]   --> src/ast.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct TokenDeclRegex {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 24 |     pub name: Ident,
[INFO] [stdout] 25 |     pub eq_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Epsilon(Ident),
[INFO] [stdout]     |     ------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 100 -     Epsilon(Ident),
[INFO] [stdout] 100 +     Epsilon(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:137:10
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Pipe(Token![|]),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 137 -     Pipe(Token![|]),
[INFO] [stdout] 137 +     Pipe(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:138:10
[INFO] [stdout]     |
[INFO] [stdout] 138 |     Semi(Token![;]),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 138 -     Semi(Token![;]),
[INFO] [stdout] 138 +     Semi(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]    --> src/ast.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub struct SubRule {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 142 |     pub entities: Vec<RuleEntity>,
[INFO] [stdout] 143 |     pub end: PipeOrSemi,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `coloncolon` and `eq` are never read
[INFO] [stdout]    --> src/ast.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Rule {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 147 |     pub left: Ident,
[INFO] [stdout] 148 |     pub coloncolon: Token![::],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 149 |     pub eq: Token![=],
[INFO] [stdout]     |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "64dbf92b0ff31dff4e3770c17660e4a4059a55f1f2da9a2350eb9a66f96e25da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64dbf92b0ff31dff4e3770c17660e4a4059a55f1f2da9a2350eb9a66f96e25da", kill_on_drop: false }`
[INFO] [stdout] 64dbf92b0ff31dff4e3770c17660e4a4059a55f1f2da9a2350eb9a66f96e25da