[INFO] fetching crate tree-builder-macro 0.0.1...
[INFO] checking tree-builder-macro-0.0.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate tree-builder-macro 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tree-builder-macro 0.0.1 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 tree-builder-macro 0.0.1
[INFO] finished tweaking crates.io crate tree-builder-macro 0.0.1
[INFO] tweaked toml for crates.io crate tree-builder-macro 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ad42604588da2fd94cbbbcc880e75e05f4f5bcd79e229f351f34e2fc473eb7b2
[INFO] running `Command { std: "docker" "start" "-a" "ad42604588da2fd94cbbbcc880e75e05f4f5bcd79e229f351f34e2fc473eb7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad42604588da2fd94cbbbcc880e75e05f4f5bcd79e229f351f34e2fc473eb7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad42604588da2fd94cbbbcc880e75e05f4f5bcd79e229f351f34e2fc473eb7b2", kill_on_drop: false }`
[INFO] [stdout] ad42604588da2fd94cbbbcc880e75e05f4f5bcd79e229f351f34e2fc473eb7b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 20163eae7145a3d5d703de7f34cc38d38f83f07c842b17720245cdcc6fa9e122
[INFO] running `Command { std: "docker" "start" "-a" "20163eae7145a3d5d703de7f34cc38d38f83f07c842b17720245cdcc6fa9e122", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking syn v2.0.77
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking tree-builder-macro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast_from_rule_no_alts`
[INFO] [stdout]  --> src/ast_builder/mod.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use tuple_type_builder::{ast_from_rule, ast_from_rule_no_alts};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::parsing::terminal::terminal`
[INFO] [stdout]    --> src/parser/parsing.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |     use super::super::parsing::terminal::terminal;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::metacharacters::metacharacter`
[INFO] [stdout]    --> src/parser/parsing.rs:447:9
[INFO] [stdout]     |
[INFO] [stdout] 447 |     use super::metacharacters::metacharacter;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/parser/parsing.rs:448:9
[INFO] [stdout]     |
[INFO] [stdout] 448 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parsing::regex::rule as reg_rule`
[INFO] [stdout]  --> src/parser/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use parsing::regex::rule as reg_rule;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast_from_rule_no_alts`
[INFO] [stdout]  --> src/ast_builder/mod.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use tuple_type_builder::{ast_from_rule, ast_from_rule_no_alts};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parsing::regex::rule as reg_rule`
[INFO] [stdout]  --> src/parser/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use parsing::regex::rule as reg_rule;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/parser/parsing.rs:554:9
[INFO] [stdout]     |
[INFO] [stdout] 554 |     let output = metacharacter(r#"[A-Za-z1-9]"#).unwrap().1;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]   --> src/lib.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Parser {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parser` is never used
[INFO] [stdout]   --> src/lib.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Parser {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "20163eae7145a3d5d703de7f34cc38d38f83f07c842b17720245cdcc6fa9e122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20163eae7145a3d5d703de7f34cc38d38f83f07c842b17720245cdcc6fa9e122", kill_on_drop: false }`
[INFO] [stdout] 20163eae7145a3d5d703de7f34cc38d38f83f07c842b17720245cdcc6fa9e122