[INFO] fetching crate tree-builder-macro 0.0.1...
[INFO] testing tree-builder-macro-0.0.1 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate tree-builder-macro 0.0.1 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-builder-macro 0.0.1 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce3aaaa87d1e65e446984711fbc55f76ea590c33b4417b57a81a60d02b382a4f
[INFO] running `Command { std: "docker" "start" "-a" "ce3aaaa87d1e65e446984711fbc55f76ea590c33b4417b57a81a60d02b382a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce3aaaa87d1e65e446984711fbc55f76ea590c33b4417b57a81a60d02b382a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce3aaaa87d1e65e446984711fbc55f76ea590c33b4417b57a81a60d02b382a4f", kill_on_drop: false }`
[INFO] [stdout] ce3aaaa87d1e65e446984711fbc55f76ea590c33b4417b57a81a60d02b382a4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00d4795910821aa909104b6c6e38019870a17b0072990965297ba5763c80ea25
[INFO] running `Command { std: "docker" "start" "-a" "00d4795910821aa909104b6c6e38019870a17b0072990965297ba5763c80ea25", 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]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser/parsing.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&str, Specification, VerboseError<&str>> {
[INFO] [stdout]    |                                  --                 ^^^^                              ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                  |                  |
[INFO] [stdout]    |                                  |                  the same lifetime is elided here
[INFO] [stdout]    |                                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&'a str, Specification, VerboseError<&'a str>> {
[INFO] [stdout]    |                                                      ++                                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:171:51
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&str, StructRule, VerboseError<&str>> {
[INFO] [stdout]     |                                --                 ^^^^                           ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                |                  |
[INFO] [stdout]     |                                |                  the same lifetime is elided here
[INFO] [stdout]     |                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&'a str, StructRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                    ++                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:249:44
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&str, RuleKind, VerboseError<&str>> {
[INFO] [stdout]     |                         --                 ^^^^                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                         |                  |
[INFO] [stdout]     |                         |                  the same lifetime is elided here
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RuleKind, VerboseError<&'a str>> {
[INFO] [stdout]     |                                             ++                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:314:48
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&str, RegRule, VerboseError<&str>> {
[INFO] [stdout]     |                             --                 ^^^^                        ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                             |                  |
[INFO] [stdout]     |                             |                  the same lifetime is elided here
[INFO] [stdout]     |                             the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RegRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                 ++                             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:429:84
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&str>> {
[INFO] [stdout]     |                                 --                  --                             ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                   |
[INFO] [stdout]     |                                 |                   the same lifetime is named here
[INFO] [stdout]     |                                 the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.27s
[INFO] running `Command { std: "docker" "inspect" "00d4795910821aa909104b6c6e38019870a17b0072990965297ba5763c80ea25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d4795910821aa909104b6c6e38019870a17b0072990965297ba5763c80ea25", kill_on_drop: false }`
[INFO] [stdout] 00d4795910821aa909104b6c6e38019870a17b0072990965297ba5763c80ea25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efaaf6898b1b0ec1255a244d74a11f2fdd037724bce98d6193bd324e28806b05
[INFO] running `Command { std: "docker" "start" "-a" "efaaf6898b1b0ec1255a244d74a11f2fdd037724bce98d6193bd324e28806b05", 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]    Compiling 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)]` (part of `#[warn(unused)]`) 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 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser/parsing.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&str, Specification, VerboseError<&str>> {
[INFO] [stdout]    |                                  --                 ^^^^                              ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                  |                  |
[INFO] [stdout]    |                                  |                  the same lifetime is elided here
[INFO] [stdout]    |                                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&'a str, Specification, VerboseError<&'a str>> {
[INFO] [stdout]    |                                                      ++                                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:171:51
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&str, StructRule, VerboseError<&str>> {
[INFO] [stdout]     |                                --                 ^^^^                           ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                |                  |
[INFO] [stdout]     |                                |                  the same lifetime is elided here
[INFO] [stdout]     |                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&'a str, StructRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                    ++                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:249:44
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&str, RuleKind, VerboseError<&str>> {
[INFO] [stdout]     |                         --                 ^^^^                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                         |                  |
[INFO] [stdout]     |                         |                  the same lifetime is elided here
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RuleKind, VerboseError<&'a str>> {
[INFO] [stdout]     |                                             ++                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:314:48
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&str, RegRule, VerboseError<&str>> {
[INFO] [stdout]     |                             --                 ^^^^                        ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                             |                  |
[INFO] [stdout]     |                             |                  the same lifetime is elided here
[INFO] [stdout]     |                             the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RegRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                 ++                             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:429:84
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&str>> {
[INFO] [stdout]     |                                 --                  --                             ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                   |
[INFO] [stdout]     |                                 |                   the same lifetime is named here
[INFO] [stdout]     |                                 the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&'a str>> {
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser/parsing.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&str, Specification, VerboseError<&str>> {
[INFO] [stdout]    |                                  --                 ^^^^                              ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                  |                  |
[INFO] [stdout]    |                                  |                  the same lifetime is elided here
[INFO] [stdout]    |                                  the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&'a str, Specification, VerboseError<&'a str>> {
[INFO] [stdout]    |                                                      ++                                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:171:51
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&str, StructRule, VerboseError<&str>> {
[INFO] [stdout]     |                                --                 ^^^^                           ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                |                  |
[INFO] [stdout]     |                                |                  the same lifetime is elided here
[INFO] [stdout]     |                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&'a str, StructRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                    ++                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:249:44
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&str, RuleKind, VerboseError<&str>> {
[INFO] [stdout]     |                         --                 ^^^^                         ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                         |                  |
[INFO] [stdout]     |                         |                  the same lifetime is elided here
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RuleKind, VerboseError<&'a str>> {
[INFO] [stdout]     |                                             ++                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:314:48
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&str, RegRule, VerboseError<&str>> {
[INFO] [stdout]     |                             --                 ^^^^                        ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                             |                  |
[INFO] [stdout]     |                             |                  the same lifetime is elided here
[INFO] [stdout]     |                             the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RegRule, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                 ++                             ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser/parsing.rs:429:84
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&str>> {
[INFO] [stdout]     |                                 --                  --                             ^^^^ the same lifetime is elided here
[INFO] [stdout]     |                                 |                   |
[INFO] [stdout]     |                                 |                   the same lifetime is named here
[INFO] [stdout]     |                                 the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&'a str>> {
[INFO] [stdout]     |                                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "efaaf6898b1b0ec1255a244d74a11f2fdd037724bce98d6193bd324e28806b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efaaf6898b1b0ec1255a244d74a11f2fdd037724bce98d6193bd324e28806b05", kill_on_drop: false }`
[INFO] [stdout] efaaf6898b1b0ec1255a244d74a11f2fdd037724bce98d6193bd324e28806b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec1c326982344b739c78dd51c64aaff6677ad05bf34281f0ffbd541396c90302
[INFO] running `Command { std: "docker" "start" "-a" "ec1c326982344b739c78dd51c64aaff6677ad05bf34281f0ffbd541396c90302", 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] warning: unused import: `ast_from_rule_no_alts`
[INFO] [stderr]  --> src/ast_builder/mod.rs:4:45
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use tuple_type_builder::{ast_from_rule, ast_from_rule_no_alts};
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parsing::regex::rule as reg_rule`
[INFO] [stderr]  --> src/parser/mod.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use parsing::regex::rule as reg_rule;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Parser` is never used
[INFO] [stderr]   --> src/lib.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | trait Parser {
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/parser/parsing.rs:31:53
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&str, Specification, VerboseError<&str>> {
[INFO] [stderr]    |                                  --                 ^^^^                              ^^^^ the same lifetime is elided here
[INFO] [stderr]    |                                  |                  |
[INFO] [stderr]    |                                  |                  the same lifetime is elided here
[INFO] [stderr]    |                                  the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn specification<'a>(input: &'a str) -> IResult<&'a str, Specification, VerboseError<&'a str>> {
[INFO] [stderr]    |                                                      ++                                   ++
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/parser/parsing.rs:171:51
[INFO] [stderr]     |
[INFO] [stderr] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&str, StructRule, VerboseError<&str>> {
[INFO] [stderr]     |                                --                 ^^^^                           ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                                |                  |
[INFO] [stderr]     |                                |                  the same lifetime is elided here
[INFO] [stderr]     |                                the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 171 | pub fn struct_rule<'a>(input: &'a str) -> IResult<&'a str, StructRule, VerboseError<&'a str>> {
[INFO] [stderr]     |                                                    ++                                ++
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/parser/parsing.rs:249:44
[INFO] [stderr]     |
[INFO] [stderr] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&str, RuleKind, VerboseError<&str>> {
[INFO] [stderr]     |                         --                 ^^^^                         ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                         |                  |
[INFO] [stderr]     |                         |                  the same lifetime is elided here
[INFO] [stderr]     |                         the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 249 | pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RuleKind, VerboseError<&'a str>> {
[INFO] [stderr]     |                                             ++                              ++
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/parser/parsing.rs:314:48
[INFO] [stderr]     |
[INFO] [stderr] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&str, RegRule, VerboseError<&str>> {
[INFO] [stderr]     |                             --                 ^^^^                        ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                             |                  |
[INFO] [stderr]     |                             |                  the same lifetime is elided here
[INFO] [stderr]     |                             the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 314 |     pub fn rule<'a>(input: &'a str) -> IResult<&'a str, RegRule, VerboseError<&'a str>> {
[INFO] [stderr]     |                                                 ++                             ++
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/parser/parsing.rs:429:84
[INFO] [stderr]     |
[INFO] [stderr] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&str>> {
[INFO] [stderr]     |                                 --                  --                             ^^^^ the same lifetime is elided here
[INFO] [stderr]     |                                 |                   |
[INFO] [stderr]     |                                 |                   the same lifetime is named here
[INFO] [stderr]     |                                 the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 429 |     pub fn terminal<'a>(input: &'a str) -> IResult<&'a str, Terminal, VerboseError<&'a str>> {
[INFO] [stderr]     |                                                                                     ++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::super::parsing::terminal::terminal`
[INFO] [stderr]    --> src/parser/parsing.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |     use super::super::parsing::terminal::terminal;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::metacharacters::metacharacter`
[INFO] [stderr]    --> src/parser/parsing.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |     use super::metacharacters::metacharacter;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/parser/parsing.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]    --> src/parser/parsing.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |     let output = metacharacter(r#"[A-Za-z1-9]"#).unwrap().1;
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-builder-macro` (lib) generated 8 warnings (run `cargo fix --lib -p tree-builder-macro` to apply 7 suggestions)
[INFO] [stderr] warning: `tree-builder-macro` (lib test) generated 12 warnings (8 duplicates) (run `cargo fix --lib -p tree-builder-macro --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_builder_macro-06c5d8e97f52e1cc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parser::parsing::test_metacharacters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_builder_macro
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/parser/parser_ast.rs - parser::parser_ast::Alternation (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/parser/parser_ast.rs - parser::parser_ast::Alternation (line 14) stdout ----
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Alternation` in this scope
[INFO] [stdout]   --> src/parser/parser_ast.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | Alternation{
[INFO] [stdout]    | ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Concatenation1` in this scope
[INFO] [stdout]   --> src/parser/parser_ast.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 |     concatenation: Concatenation1,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Alternation1` in this scope
[INFO] [stdout]   --> src/parser/parser_ast.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     identifier: Some(Alternation1)
[INFO] [stdout]    |                      ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/parser/parser_ast.rs - parser::parser_ast::Alternation (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "ec1c326982344b739c78dd51c64aaff6677ad05bf34281f0ffbd541396c90302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1c326982344b739c78dd51c64aaff6677ad05bf34281f0ffbd541396c90302", kill_on_drop: false }`
[INFO] [stdout] ec1c326982344b739c78dd51c64aaff6677ad05bf34281f0ffbd541396c90302
