[INFO] crate peruse 0.3.0 is already in cache
[INFO] extracting crate peruse 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/peruse/0.3.0
[INFO] extracting crate peruse 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/peruse/0.3.0
[INFO] validating manifest of peruse-0.3.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of peruse-0.3.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing peruse-0.3.0
[INFO] finished frobbing peruse-0.3.0
[INFO] frobbed toml for peruse-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/peruse/0.3.0/Cargo.toml
[INFO] started frobbing peruse-0.3.0
[INFO] finished frobbing peruse-0.3.0
[INFO] frobbed toml for peruse-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/peruse/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing peruse-0.3.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/peruse/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d82e1a96d09b0b4832652b657f5b429b445c6b66d80b17ad41a7ae6171d1d957
[INFO] running `"docker" "start" "-a" "d82e1a96d09b0b4832652b657f5b429b445c6b66d80b17ad41a7ae6171d1d957"`
[INFO] [stderr]    Compiling peruse v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:62:46
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I, O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::O) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:222:66
[INFO] [stderr]     |
[INFO] [stderr] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:226:79
[INFO] [stderr]     |
[INFO] [stderr] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:237:89
[INFO] [stderr]     |
[INFO] [stderr] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stderr]     |                                                                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:239:79
[INFO] [stderr]     |
[INFO] [stderr] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:330:18
[INFO] [stderr]     |
[INFO] [stderr] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[I], O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stderr]    |
[INFO] [stderr] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> Option<U>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=str, O=T>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parsers::*`
[INFO] [stderr]  --> src/peruse/slice_parser_tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `slice_parsers::*`
[INFO] [stderr]  --> src/peruse/slice_parser_tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use slice_parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parsers::*`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string_parsers::*`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use string_parsers::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/peruse/string_parser_tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "d82e1a96d09b0b4832652b657f5b429b445c6b66d80b17ad41a7ae6171d1d957"`
[INFO] running `"docker" "rm" "-f" "d82e1a96d09b0b4832652b657f5b429b445c6b66d80b17ad41a7ae6171d1d957"`
[INFO] [stdout] d82e1a96d09b0b4832652b657f5b429b445c6b66d80b17ad41a7ae6171d1d957
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/peruse/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fa9be16417494e82c3d4e90b3f5b085c55f26d06d86b5eeb9364caab2bba24f6
[INFO] running `"docker" "start" "-a" "fa9be16417494e82c3d4e90b3f5b085c55f26d06d86b5eeb9364caab2bba24f6"`
[INFO] [stderr]    Compiling peruse v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:62:46
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn recursive<I:?Sized,O, F:  Fn() -> Box<Parser<I=I,O=O>>>(f: F) -> RecursiveParser<I,O,F> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/parsers.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn boxed<I: ?Sized,O>(b: Box<Parser<I=I, O=O>>) -> BoxedParser<I,O> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I, O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |   mapper: Rc<Box<Fn(P::O) -> T>>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::O) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:222:66
[INFO] [stderr]     |
[INFO] [stderr] 222 | pub struct RecursiveParser<I: ?Sized, O, F> where F: Fn() -> Box<Parser<I=I,O=O>>{
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:226:79
[INFO] [stderr]     |
[INFO] [stderr] 226 | impl<I:?Sized, O, F> Parser for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:237:89
[INFO] [stderr]     |
[INFO] [stderr] 237 | impl<I:?Sized, O, F> ParserCombinator for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {}
[INFO] [stderr]     |                                                                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:239:79
[INFO] [stderr]     |
[INFO] [stderr] 239 | impl<I: ?Sized, O, F> Clone for RecursiveParser<I, O, F> where F: Fn() -> Box<Parser<I=I,O=O>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/parsers.rs:330:18
[INFO] [stderr]     |
[INFO] [stderr] 330 |   parser: Rc<Box<Parser<I=I,O=O>>>
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=I,O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/slice_parsers.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type SliceParser<I,O> = Parser<I=[I], O=O>;
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[I], O=O>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/slice_parsers.rs:49:19
[INFO] [stderr]    |
[INFO] [stderr] 49 |   matcher: Rc<Box<Fn(T) -> Option<U>>>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> Option<U>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/peruse/string_parsers.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type StringParser<T> = Parser<I=str, O=T>;
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=str, O=T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/peruse/slice_parser_tests.rs:57:23
[INFO] [stderr]    |
[INFO] [stderr] 57 |   fn recurse() -> Box<Parser<I=[i32], O=i32>> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[i32], O=i32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/peruse/slice_parser_tests.rs:179:26
[INFO] [stderr]     |
[INFO] [stderr] 179 |   fn expression() -> Box<Parser<I=[Token], O=Expression>> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<I=[Token], O=Expression>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `"docker" "inspect" "fa9be16417494e82c3d4e90b3f5b085c55f26d06d86b5eeb9364caab2bba24f6"`
[INFO] running `"docker" "rm" "-f" "fa9be16417494e82c3d4e90b3f5b085c55f26d06d86b5eeb9364caab2bba24f6"`
[INFO] [stdout] fa9be16417494e82c3d4e90b3f5b085c55f26d06d86b5eeb9364caab2bba24f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/peruse/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b58f2cb3f01afe650eedc109cee201dfde010328d439b8266284c19ee14d2181
[INFO] running `"docker" "start" "-a" "b58f2cb3f01afe650eedc109cee201dfde010328d439b8266284c19ee14d2181"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/peruse-3ae2b359e470240b
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test slice_parser_tests::test_match ... ok
[INFO] [stdout] test slice_parser_tests::basic_example ... ok
[INFO] [stdout] test slice_parser_tests::test_oneof ... ok
[INFO] [stdout] test slice_parser_tests::test_map ... ok
[INFO] [stdout] test slice_parser_tests::test_opt ... ok
[INFO] [stdout] test slice_parser_tests::test_or ... ok
[INFO] [stdout] test slice_parser_tests::test_literal ... ok
[INFO] [stdout] test slice_parser_tests::test_repeat ... ok
[INFO] [stdout] test slice_parser_tests::test_recursive ... ok
[INFO] [stdout] test slice_parser_tests::test_readme_code ... ok
[INFO] [stdout] test slice_parser_tests::test_then_l ... ok
[INFO] [stdout] test slice_parser_tests::test_then_r ... ok
[INFO] [stdout] test string_parser_tests::test_captures ... ok
[INFO] [stdout] test slice_parser_tests::test_then ... ok
[INFO] [stdout] test string_parser_tests::test_literal ... 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 peruse
[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" "b58f2cb3f01afe650eedc109cee201dfde010328d439b8266284c19ee14d2181"`
[INFO] running `"docker" "rm" "-f" "b58f2cb3f01afe650eedc109cee201dfde010328d439b8266284c19ee14d2181"`
[INFO] [stdout] b58f2cb3f01afe650eedc109cee201dfde010328d439b8266284c19ee14d2181