[INFO] fetching crate peruse 0.3.0...
[INFO] checking peruse-0.3.0 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate peruse 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate peruse 0.3.0 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peruse 0.3.0
[INFO] finished tweaking crates.io crate peruse 0.3.0
[INFO] tweaked toml for crates.io crate peruse 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01ec6ba7c13c4a13675e6806440790ff2630026a3d3516d6d9d34006a24c1933
[INFO] running `Command { std: "docker" "start" "-a" "01ec6ba7c13c4a13675e6806440790ff2630026a3d3516d6d9d34006a24c1933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ec6ba7c13c4a13675e6806440790ff2630026a3d3516d6d9d34006a24c1933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ec6ba7c13c4a13675e6806440790ff2630026a3d3516d6d9d34006a24c1933", kill_on_drop: false }`
[INFO] [stdout] 01ec6ba7c13c4a13675e6806440790ff2630026a3d3516d6d9d34006a24c1933
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0a8c817379e1c90f333ecee6ceec5f6b912048f563bbd148f292a2c9c80687a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0a8c817379e1c90f333ecee6ceec5f6b912048f563bbd148f292a2c9c80687a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking peruse v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:62:46
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:75:34
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I, O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::O) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:222:66
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:237:89
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:239:79
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:330:18
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[I], O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> Option<U>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=str, O=T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parsers::*`
[INFO] [stdout]  --> src/peruse/slice_parser_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice_parsers::*`
[INFO] [stdout]  --> src/peruse/slice_parser_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use slice_parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parsers::*`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `string_parsers::*`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use string_parsers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/peruse/string_parser_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:62:46
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/parsers.rs:75:34
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I, O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::O) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:222:66
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:237:89
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:239:79
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/parsers.rs:330:18
[INFO] [stdout]     |
[INFO] [stdout] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[I], O=O>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> Option<U>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=str, O=T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/peruse/slice_parser_tests.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 |   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[i32], O=i32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/peruse/slice_parser_tests.rs:179:26
[INFO] [stdout]     |
[INFO] [stdout] 179 |   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[Token], O=Expression>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "c0a8c817379e1c90f333ecee6ceec5f6b912048f563bbd148f292a2c9c80687a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a8c817379e1c90f333ecee6ceec5f6b912048f563bbd148f292a2c9c80687a", kill_on_drop: false }`
[INFO] [stdout] c0a8c817379e1c90f333ecee6ceec5f6b912048f563bbd148f292a2c9c80687a