[INFO] crate rusty-peg 0.3.0 is already in cache
[INFO] testing rusty-peg-0.3.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate rusty-peg 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rusty-peg 0.3.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1fe7a2499d94c8c8aed7f98dd77c654fd92e989892d9b4e5314fb18d8e1462bb
[INFO] running `"docker" "start" "-a" "1fe7a2499d94c8c8aed7f98dd77c654fd92e989892d9b4e5314fb18d8e1462bb"`
[INFO] [stderr]    Compiling rusty-peg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/util.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let mut err;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "1fe7a2499d94c8c8aed7f98dd77c654fd92e989892d9b4e5314fb18d8e1462bb"`
[INFO] running `"docker" "rm" "-f" "1fe7a2499d94c8c8aed7f98dd77c654fd92e989892d9b4e5314fb18d8e1462bb"`
[INFO] [stdout] 1fe7a2499d94c8c8aed7f98dd77c654fd92e989892d9b4e5314fb18d8e1462bb
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f230ecaba74d2a8228d7640455a4d0e536f418635f6a04e85c7d82941baa781
[INFO] running `"docker" "start" "-a" "5f230ecaba74d2a8228d7640455a4d0e536f418635f6a04e85c7d82941baa781"`
[INFO] [stderr]    Compiling rusty-peg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/util.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let mut err;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:408:29
[INFO] [stderr]     |
[INFO] [stderr] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:408:29
[INFO] [stderr]     |
[INFO] [stderr] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:14:46
[INFO] [stderr]    |
[INFO] [stderr] 14 |                  ("+" <rhs:MUL_DIV_EXPR>) => { lhs + rhs },
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:15:46
[INFO] [stderr]    |
[INFO] [stderr] 15 |                  ("-" <rhs:MUL_DIV_EXPR>) => { lhs - rhs });
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:19:43
[INFO] [stderr]    |
[INFO] [stderr] 19 |                  ("*" <rhs:ATOM_EXPR>) => { lhs * rhs },
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |                  ("/" <rhs:ATOM_EXPR>) => { lhs / rhs });
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/util.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let mut err;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `"docker" "inspect" "5f230ecaba74d2a8228d7640455a4d0e536f418635f6a04e85c7d82941baa781"`
[INFO] running `"docker" "rm" "-f" "5f230ecaba74d2a8228d7640455a4d0e536f418635f6a04e85c7d82941baa781"`
[INFO] [stdout] 5f230ecaba74d2a8228d7640455a4d0e536f418635f6a04e85c7d82941baa781
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3312044187c21ac0a716d78517a8f52efe3871c85df31f4b7d4b809dff4f7dfd
[INFO] running `"docker" "start" "-a" "3312044187c21ac0a716d78517a8f52efe3871c85df31f4b7d4b809dff4f7dfd"`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/util.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let mut err;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (mid, result) = try!(self.parse(grammar, start));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let (mid, first) = try!(self.first.parse(grammar, start));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let (sep, ()) = try!(self.sep.parse(grammar, mid));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/util.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let (end, second) = try!(self.second.parse(grammar, sep));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:408:29
[INFO] [stderr]     |
[INFO] [stderr] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:408:29
[INFO] [stderr]     |
[INFO] [stderr] 408 |   ...                   try!($crate::Symbol::parse(&lhs_parser,
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/calculator.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | / rusty_peg! {
[INFO] [stderr] 5   | |     parser Calculator<'input> {
[INFO] [stderr] 6   | |         EXPR: u32 =
[INFO] [stderr] 7   | |             ADD_SUB_EXPR;
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/classy.rs:35:1
[INFO] [stderr]     |
[INFO] [stderr] 35  | / rusty_peg! {
[INFO] [stderr] 36  | |     parser Classy<'input> {
[INFO] [stderr] 37  | |         ID: &'input str =
[INFO] [stderr] 38  | |             regex(r"^[a-zA-Z_][a-zA-Z_0-9]*") - ["class"];
[INFO] [stderr] ...   |
[INFO] [stderr] 64  | |     }
[INFO] [stderr] 65  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/combos.rs:8:1
[INFO] [stderr]     |
[INFO] [stderr] 8   | / rusty_peg! {
[INFO] [stderr] 9   | |     parser Parser<'input> {
[INFO] [stderr] 10  | |         StrHi: &'input str = "Hi";
[INFO] [stderr] 11  | |         StrHi1: &'input str = ("Hi");
[INFO] [stderr] ...   |
[INFO] [stderr] 30  | |     }
[INFO] [stderr] 31  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:315:29
[INFO] [stderr]     |
[INFO] [stderr] 315 |   ...                   try!($crate::Symbol::parse(&parser, g, start));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/test/silly_grammar.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / rusty_peg! {
[INFO] [stderr] 8   | |     parser Parser<'input>: Foo {
[INFO] [stderr] 9   | |         Hi: u32 = ("Hi") => 1;
[INFO] [stderr] 10  | |         Ho: u32 = "Ho" => 2;
[INFO] [stderr] ...   |
[INFO] [stderr] 20  | |     }
[INFO] [stderr] 21  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:14:46
[INFO] [stderr]    |
[INFO] [stderr] 14 |                  ("+" <rhs:MUL_DIV_EXPR>) => { lhs + rhs },
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:15:46
[INFO] [stderr]    |
[INFO] [stderr] 15 |                  ("-" <rhs:MUL_DIV_EXPR>) => { lhs - rhs });
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:19:43
[INFO] [stderr]    |
[INFO] [stderr] 19 |                  ("*" <rhs:ATOM_EXPR>) => { lhs * rhs },
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/test/calculator.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |                  ("/" <rhs:ATOM_EXPR>) => { lhs / rhs });
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/util.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let mut err;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_peg-0e2299d9a4b71623
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test::combos::test_position ... ok
[INFO] [stdout] test test::silly_grammar::parse_hi_from_hi ... ok
[INFO] [stdout] test test::silly_grammar::parse_hiho_from_ho ... ok
[INFO] [stdout] test test::calculator::parse_parens ... ok
[INFO] [stdout] test test::silly_grammar::parse_hiorho_from_hi ... ok
[INFO] [stdout] test test::calculator::parse_plus ... ok
[INFO] [stdout] test test::silly_grammar::parse_hiorho_from_ho ... ok
[INFO] [stdout] test test::calculator::parse_number ... ok
[INFO] [stdout] test test::silly_grammar::parse_sum_from_ho ... ok
[INFO] [stdout] test tree::test::iterate ... ok
[INFO] [stdout] test test::calculator::parse_mul ... ok
[INFO] [stdout] test test::classy::parse_a_class ... ok
[INFO] [stdout] test test::silly_grammar::parse_repeat ... ok
[INFO] [stdout] test test::calculator::parse_expr ... ok
[INFO] [stdout] test test::silly_grammar::parse_hi_from_ho ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty-peg
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3312044187c21ac0a716d78517a8f52efe3871c85df31f4b7d4b809dff4f7dfd"`
[INFO] running `"docker" "rm" "-f" "3312044187c21ac0a716d78517a8f52efe3871c85df31f4b7d4b809dff4f7dfd"`
[INFO] [stdout] 3312044187c21ac0a716d78517a8f52efe3871c85df31f4b7d4b809dff4f7dfd