[INFO] crate recital 0.3.0 is already in cache
[INFO] extracting crate recital 0.3.0 into work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/recital/0.3.0
[INFO] extracting crate recital 0.3.0 into work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/recital/0.3.0
[INFO] validating manifest of recital-0.3.0 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of recital-0.3.0 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing recital-0.3.0
[INFO] finished frobbing recital-0.3.0
[INFO] frobbed toml for recital-0.3.0 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/recital/0.3.0/Cargo.toml
[INFO] started frobbing recital-0.3.0
[INFO] finished frobbing recital-0.3.0
[INFO] frobbed toml for recital-0.3.0 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/recital/0.3.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking recital-0.3.0 against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/recital/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ea688c4a44e3aa594baa74a9165500dd0eaad101e97888ec33db9130175dd608
[INFO] running `"docker" "start" "-a" "ea688c4a44e3aa594baa74a9165500dd0eaad101e97888ec33db9130175dd608"`
[INFO] [stderr]     Checking recital v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 |   /// Parse a string as an `Identifier`.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 39 |   #[allow(dead_code)]
[INFO] [stderr] 40 | / named!(
[INFO] [stderr] 41 | |     identifiers<&[u8], Vec<Identifier> >,
[INFO] [stderr] 42 | |     map!(
[INFO] [stderr] 43 | |         separated_list!(
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |     )
[INFO] [stderr] 52 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 |   /// Parses a string of pre-release identifiers into a vector of `Identifier`s.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 55 |   #[allow(dead_code)]
[INFO] [stderr] 56 | / named!(
[INFO] [stderr] 57 | |     build<&[u8], Option<Vec<Identifier>> >,
[INFO] [stderr] 58 | |     opt!(complete!(preceded!(tag!("+"), identifiers)))
[INFO] [stderr] 59 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 |   /// Parses a string of build identifiers into a vector of `Identifier`s.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 62 |   #[allow(dead_code)]
[INFO] [stderr] 63 | / named!(
[INFO] [stderr] 64 | |     prerelease<&[u8], Option<Vec<Identifier>> >,
[INFO] [stderr] 65 | |     opt!(complete!(preceded!(tag!("-"), identifiers)))
[INFO] [stderr] 66 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 |   /// Optionally parse pre-release and build identifiers.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 69 |   #[allow(dead_code)]
[INFO] [stderr] 70 | / named!(
[INFO] [stderr] 71 | |     extensions<&[u8], (Option<Vec<Identifier>>, Option<Vec<Identifier>>)>,
[INFO] [stderr] 72 | |     pair!(prerelease, build)
[INFO] [stderr] 73 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 |   /// Parses a numeric string as a `u64`.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 76 |   #[allow(dead_code)]
[INFO] [stderr] 77 | / named!(
[INFO] [stderr] 78 | |     number<&[u8], u64>,
[INFO] [stderr] 79 | |     map_res!(
[INFO] [stderr] 80 | |         map_res!(digit, str::from_utf8),
[INFO] [stderr] 81 | |         |c| str::FromStr::from_str(c)
[INFO] [stderr] 82 | |     )
[INFO] [stderr] 83 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 |   /// Parses a numeric string preceded by a dot (.) as u64.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 86 |   #[allow(dead_code)]
[INFO] [stderr] 87 | / named!(
[INFO] [stderr] 88 | |     next_number<&[u8], u64>,
[INFO] [stderr] 89 | |     preceded!(char!('.'), number)
[INFO] [stderr] 90 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/parser.rs:92:1
[INFO] [stderr]     |
[INFO] [stderr] 92  |   /// Parse a string as a `Version`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 93  |   #[allow(dead_code)]
[INFO] [stderr] 94  | / named!(
[INFO] [stderr] 95  | |     version<&[u8], Version>,
[INFO] [stderr] 96  | |     chain!(
[INFO] [stderr] 97  | |         major: number ~
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |     )
[INFO] [stderr] 111 | | );
[INFO] [stderr]     | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 |   /// Parse a string as an `Identifier`.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 39 |   #[allow(dead_code)]
[INFO] [stderr] 40 | / named!(
[INFO] [stderr] 41 | |     identifiers<&[u8], Vec<Identifier> >,
[INFO] [stderr] 42 | |     map!(
[INFO] [stderr] 43 | |         separated_list!(
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |     )
[INFO] [stderr] 52 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 |   /// Parses a string of pre-release identifiers into a vector of `Identifier`s.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 55 |   #[allow(dead_code)]
[INFO] [stderr] 56 | / named!(
[INFO] [stderr] 57 | |     build<&[u8], Option<Vec<Identifier>> >,
[INFO] [stderr] 58 | |     opt!(complete!(preceded!(tag!("+"), identifiers)))
[INFO] [stderr] 59 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 |   /// Parses a string of build identifiers into a vector of `Identifier`s.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 62 |   #[allow(dead_code)]
[INFO] [stderr] 63 | / named!(
[INFO] [stderr] 64 | |     prerelease<&[u8], Option<Vec<Identifier>> >,
[INFO] [stderr] 65 | |     opt!(complete!(preceded!(tag!("-"), identifiers)))
[INFO] [stderr] 66 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 |   /// Optionally parse pre-release and build identifiers.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 69 |   #[allow(dead_code)]
[INFO] [stderr] 70 | / named!(
[INFO] [stderr] 71 | |     extensions<&[u8], (Option<Vec<Identifier>>, Option<Vec<Identifier>>)>,
[INFO] [stderr] 72 | |     pair!(prerelease, build)
[INFO] [stderr] 73 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 |   /// Parses a numeric string as a `u64`.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 76 |   #[allow(dead_code)]
[INFO] [stderr] 77 | / named!(
[INFO] [stderr] 78 | |     number<&[u8], u64>,
[INFO] [stderr] 79 | |     map_res!(
[INFO] [stderr] 80 | |         map_res!(digit, str::from_utf8),
[INFO] [stderr] 81 | |         |c| str::FromStr::from_str(c)
[INFO] [stderr] 82 | |     )
[INFO] [stderr] 83 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 |   /// Parses a numeric string preceded by a dot (.) as u64.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 86 |   #[allow(dead_code)]
[INFO] [stderr] 87 | / named!(
[INFO] [stderr] 88 | |     next_number<&[u8], u64>,
[INFO] [stderr] 89 | |     preceded!(char!('.'), number)
[INFO] [stderr] 90 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/parser.rs:92:1
[INFO] [stderr]     |
[INFO] [stderr] 92  |   /// Parse a string as a `Version`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 93  |   #[allow(dead_code)]
[INFO] [stderr] 94  | / named!(
[INFO] [stderr] 95  | |     version<&[u8], Version>,
[INFO] [stderr] 96  | |     chain!(
[INFO] [stderr] 97  | |         major: number ~
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |     )
[INFO] [stderr] 111 | | );
[INFO] [stderr]     | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Alpha`, `Number`
[INFO] [stderr]   --> src/version.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 | use self::Identifier::{Alpha, Number};
[INFO] [stderr]    |                        ^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Alpha`, `Number`
[INFO] [stderr]   --> src/version.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 | use self::Identifier::{Alpha, Number};
[INFO] [stderr]    |                        ^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "ea688c4a44e3aa594baa74a9165500dd0eaad101e97888ec33db9130175dd608"`
[INFO] running `"docker" "rm" "-f" "ea688c4a44e3aa594baa74a9165500dd0eaad101e97888ec33db9130175dd608"`
[INFO] [stdout] ea688c4a44e3aa594baa74a9165500dd0eaad101e97888ec33db9130175dd608