[INFO] fetching crate rusty-peg 0.3.0...
[INFO] building rusty-peg-0.3.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rusty-peg 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rusty-peg 0.3.0
[INFO] finished tweaking crates.io crate rusty-peg 0.3.0
[INFO] tweaked toml for crates.io crate rusty-peg 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-peg 0.3.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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 regex v0.1.80 (available: v1.11.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 655f54d3ab1911a151d09f1c8790a1e0a4942d011fee5dbaac2f70f218cf924a
[INFO] running `Command { std: "docker" "start" "-a" "655f54d3ab1911a151d09f1c8790a1e0a4942d011fee5dbaac2f70f218cf924a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655f54d3ab1911a151d09f1c8790a1e0a4942d011fee5dbaac2f70f218cf924a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655f54d3ab1911a151d09f1c8790a1e0a4942d011fee5dbaac2f70f218cf924a", kill_on_drop: false }`
[INFO] [stdout] 655f54d3ab1911a151d09f1c8790a1e0a4942d011fee5dbaac2f70f218cf924a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cc7438002f19fc2c764bb217c7b52a7177fef8535ecba5d88853e470d897f9c
[INFO] running `Command { std: "docker" "start" "-a" "0cc7438002f19fc2c764bb217c7b52a7177fef8535ecba5d88853e470d897f9c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rusty-peg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/util.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let mut err;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tree.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn children(&self) -> ChildIterator<K> {
[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] 52 |     pub fn children(&self) -> ChildIterator<'_, K> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "0cc7438002f19fc2c764bb217c7b52a7177fef8535ecba5d88853e470d897f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc7438002f19fc2c764bb217c7b52a7177fef8535ecba5d88853e470d897f9c", kill_on_drop: false }`
[INFO] [stdout] 0cc7438002f19fc2c764bb217c7b52a7177fef8535ecba5d88853e470d897f9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f2af6dce419e27eb8c1fca5a90421678d688fed1a15e5ece7ff84ab87bc255c
[INFO] running `Command { std: "docker" "start" "-a" "0f2af6dce419e27eb8c1fca5a90421678d688fed1a15e5ece7ff84ab87bc255c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/util.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let mut err;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tree.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn children(&self) -> ChildIterator<K> {
[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] 52 |     pub fn children(&self) -> ChildIterator<'_, K> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty-peg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/util.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/calculator.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | / rusty_peg! {
[INFO] [stdout]   5 | |     parser Calculator<'input> {
[INFO] [stdout]   6 | |         EXPR: u32 =
[INFO] [stdout]   7 | |             ADD_SUB_EXPR;
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/calculator.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | / rusty_peg! {
[INFO] [stdout]   5 | |     parser Calculator<'input> {
[INFO] [stdout]   6 | |         EXPR: u32 =
[INFO] [stdout]   7 | |             ADD_SUB_EXPR;
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:408:29
[INFO] [stdout]     |
[INFO] [stdout] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/calculator.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | / rusty_peg! {
[INFO] [stdout]   5 | |     parser Calculator<'input> {
[INFO] [stdout]   6 | |         EXPR: u32 =
[INFO] [stdout]   7 | |             ADD_SUB_EXPR;
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_fold_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/test/calculator.rs:14:46
[INFO] [stdout]    |
[INFO] [stdout] 14 |                  ("+" <rhs:MUL_DIV_EXPR>) => { lhs + rhs },
[INFO] [stdout]    |                                              ^^         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 14 -                  ("+" <rhs:MUL_DIV_EXPR>) => { lhs + rhs },
[INFO] [stdout] 14 +                  ("+" <rhs:MUL_DIV_EXPR>) => lhs + rhs,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/test/calculator.rs:15:46
[INFO] [stdout]    |
[INFO] [stdout] 15 |                  ("-" <rhs:MUL_DIV_EXPR>) => { lhs - rhs });
[INFO] [stdout]    |                                              ^^         ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 15 -                  ("-" <rhs:MUL_DIV_EXPR>) => { lhs - rhs });
[INFO] [stdout] 15 +                  ("-" <rhs:MUL_DIV_EXPR>) => lhs - rhs);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:408:29
[INFO] [stdout]     |
[INFO] [stdout] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/calculator.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | / rusty_peg! {
[INFO] [stdout]   5 | |     parser Calculator<'input> {
[INFO] [stdout]   6 | |         EXPR: u32 =
[INFO] [stdout]   7 | |             ADD_SUB_EXPR;
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_fold_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/test/calculator.rs:19:43
[INFO] [stdout]    |
[INFO] [stdout] 19 |                  ("*" <rhs:ATOM_EXPR>) => { lhs * rhs },
[INFO] [stdout]    |                                           ^^         ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 19 -                  ("*" <rhs:ATOM_EXPR>) => { lhs * rhs },
[INFO] [stdout] 19 +                  ("*" <rhs:ATOM_EXPR>) => lhs * rhs,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/test/calculator.rs:20:43
[INFO] [stdout]    |
[INFO] [stdout] 20 |                  ("/" <rhs:ATOM_EXPR>) => { lhs / rhs });
[INFO] [stdout]    |                                           ^^         ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 20 -                  ("/" <rhs:ATOM_EXPR>) => { lhs / rhs });
[INFO] [stdout] 20 +                  ("/" <rhs:ATOM_EXPR>) => lhs / rhs);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/classy.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | / rusty_peg! {
[INFO] [stdout]  36 | |     parser Classy<'input> {
[INFO] [stdout]  37 | |         ID: &'input str =
[INFO] [stdout]  38 | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stdout] ...   |
[INFO] [stdout]  65 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/classy.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | / rusty_peg! {
[INFO] [stdout]  36 | |     parser Classy<'input> {
[INFO] [stdout]  37 | |         ID: &'input str =
[INFO] [stdout]  38 | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stdout] ...   |
[INFO] [stdout]  65 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/classy.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | / rusty_peg! {
[INFO] [stdout]  36 | |     parser Classy<'input> {
[INFO] [stdout]  37 | |         ID: &'input str =
[INFO] [stdout]  38 | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stdout] ...   |
[INFO] [stdout]  65 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/classy.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | / rusty_peg! {
[INFO] [stdout]  36 | |     parser Classy<'input> {
[INFO] [stdout]  37 | |         ID: &'input str =
[INFO] [stdout]  38 | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stdout] ...   |
[INFO] [stdout]  65 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/combos.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout]   8 | / rusty_peg! {
[INFO] [stdout]   9 | |     parser Parser<'input> {
[INFO] [stdout]  10 | |         StrHi: &'input str = "Hi";
[INFO] [stdout]  11 | |         StrHi1: &'input str = ("Hi");
[INFO] [stdout] ...   |
[INFO] [stdout]  31 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | / rusty_peg! {
[INFO] [stdout]   8 | |     parser Parser<'input>: Foo {
[INFO] [stdout]   9 | |         Hi: u32 = ("Hi") => 1;
[INFO] [stdout]  10 | |         Ho: u32 = "Ho" => 2;
[INFO] [stdout] ...   |
[INFO] [stdout]  21 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | / rusty_peg! {
[INFO] [stdout]   8 | |     parser Parser<'input>: Foo {
[INFO] [stdout]   9 | |         Hi: u32 = ("Hi") => 1;
[INFO] [stdout]  10 | |         Ho: u32 = "Ho" => 2;
[INFO] [stdout] ...   |
[INFO] [stdout]  21 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | / rusty_peg! {
[INFO] [stdout]   8 | |     parser Parser<'input>: Foo {
[INFO] [stdout]   9 | |         Hi: u32 = ("Hi") => 1;
[INFO] [stdout]  10 | |         Ho: u32 = "Ho" => 2;
[INFO] [stdout] ...   |
[INFO] [stdout]  21 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/macros.rs:315:29
[INFO] [stdout]     |
[INFO] [stdout] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | / rusty_peg! {
[INFO] [stdout]   8 | |     parser Parser<'input>: Foo {
[INFO] [stdout]   9 | |         Hi: u32 = ("Hi") => 1;
[INFO] [stdout]  10 | |         Ho: u32 = "Ho" => 2;
[INFO] [stdout] ...   |
[INFO] [stdout]  21 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `rusty_peg_declare_map_nonterminal` which comes from the expansion of the macro `rusty_peg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/util.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let mut err;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tree.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn children(&self) -> ChildIterator<K> {
[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] 52 |     pub fn children(&self) -> ChildIterator<'_, K> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "0f2af6dce419e27eb8c1fca5a90421678d688fed1a15e5ece7ff84ab87bc255c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2af6dce419e27eb8c1fca5a90421678d688fed1a15e5ece7ff84ab87bc255c", kill_on_drop: false }`
[INFO] [stdout] 0f2af6dce419e27eb8c1fca5a90421678d688fed1a15e5ece7ff84ab87bc255c
