[INFO] crate perfcnt 0.5.0 is already in cache
[INFO] extracting crate perfcnt 0.5.0 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/perfcnt/0.5.0
[INFO] extracting crate perfcnt 0.5.0 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/perfcnt/0.5.0
[INFO] validating manifest of perfcnt-0.5.0 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of perfcnt-0.5.0 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing perfcnt-0.5.0
[INFO] finished frobbing perfcnt-0.5.0
[INFO] frobbed toml for perfcnt-0.5.0 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/perfcnt/0.5.0/Cargo.toml
[INFO] started frobbing perfcnt-0.5.0
[INFO] finished frobbing perfcnt-0.5.0
[INFO] frobbed toml for perfcnt-0.5.0 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/perfcnt/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking perfcnt-0.5.0 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/perfcnt/0.5.0:/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=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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5943a8ec4ddff87c7bd8caba11dc25516b4ba4d3bc2b378efa8d784c8189937b
[INFO] running `"docker" "start" "-a" "5943a8ec4ddff87c7bd8caba11dc25516b4ba4d3bc2b378efa8d784c8189937b"`
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling x86 v0.19.0
[INFO] [stderr]     Checking perfcnt v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/linux/parser.rs:366:1
[INFO] [stderr]     |
[INFO] [stderr] 366 |   /// Parse a perf file section.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 367 | / named!(pub parse_file_section<&[u8], PerfFileSection>,
[INFO] [stderr] 368 | |     do_parse!(
[INFO] [stderr] 369 | |         offset: le_u64 >>
[INFO] [stderr] 370 | |         size: le_u64 >>
[INFO] [stderr] 371 | |         (PerfFileSection { offset: offset, size: size })
[INFO] [stderr] 372 | |     )
[INFO] [stderr] 373 | | );
[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/linux/parser.rs:375:1
[INFO] [stderr]     |
[INFO] [stderr] 375 |   /// Parse a perf string.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 376 | / named!(pub parse_perf_string<&[u8], String>,
[INFO] [stderr] 377 | |     do_parse!(
[INFO] [stderr] 378 | |         length: le_u32 >>
[INFO] [stderr] 379 | |         bytes: take!(length as usize) >>
[INFO] [stderr] ...   |
[INFO] [stderr] 385 | |     )
[INFO] [stderr] 386 | | );
[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/linux/parser.rs:388:1
[INFO] [stderr]     |
[INFO] [stderr] 388 |   /// Parse a perf string list.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 389 | / named!(pub parse_perf_string_list<&[u8], Vec<String> >,
[INFO] [stderr] 390 | |     do_parse!(
[INFO] [stderr] 391 | |         nr: le_u32 >>
[INFO] [stderr] 392 | |         strings: count!(parse_perf_string, nr as usize) >>
[INFO] [stderr] 393 | |         (strings)
[INFO] [stderr] 394 | |     )
[INFO] [stderr] 395 | | );
[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/linux/parser.rs:502:1
[INFO] [stderr]     |
[INFO] [stderr] 502 |   /// Parse a perf header
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 503 | / named!(pub parse_header<&[u8], PerfFileHeader>,
[INFO] [stderr] 504 | |     do_parse!(
[INFO] [stderr] 505 | |         tag!("PERFILE2") >>
[INFO] [stderr] 506 | |         size: le_u64 >>
[INFO] [stderr] ...   |
[INFO] [stderr] 557 | |     )
[INFO] [stderr] 558 | | );
[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/linux/parser.rs:560:1
[INFO] [stderr]     |
[INFO] [stderr] 560 |   /// Parse a perf header
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 561 | / named!(pub parse_event_attr<&[u8], EventAttr>,
[INFO] [stderr] 562 | |     do_parse!(
[INFO] [stderr] 563 | |         attr_type: le_u32 >>
[INFO] [stderr] 564 | |         size: le_u32 >>
[INFO] [stderr] ...   |
[INFO] [stderr] 600 | |         })
[INFO] [stderr] 601 | | ));
[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/linux/parser.rs:366:1
[INFO] [stderr]     |
[INFO] [stderr] 366 |   /// Parse a perf file section.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 367 | / named!(pub parse_file_section<&[u8], PerfFileSection>,
[INFO] [stderr] 368 | |     do_parse!(
[INFO] [stderr] 369 | |         offset: le_u64 >>
[INFO] [stderr] 370 | |         size: le_u64 >>
[INFO] [stderr] 371 | |         (PerfFileSection { offset: offset, size: size })
[INFO] [stderr] 372 | |     )
[INFO] [stderr] 373 | | );
[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/linux/parser.rs:375:1
[INFO] [stderr]     |
[INFO] [stderr] 375 |   /// Parse a perf string.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 376 | / named!(pub parse_perf_string<&[u8], String>,
[INFO] [stderr] 377 | |     do_parse!(
[INFO] [stderr] 378 | |         length: le_u32 >>
[INFO] [stderr] 379 | |         bytes: take!(length as usize) >>
[INFO] [stderr] ...   |
[INFO] [stderr] 385 | |     )
[INFO] [stderr] 386 | | );
[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/linux/parser.rs:388:1
[INFO] [stderr]     |
[INFO] [stderr] 388 |   /// Parse a perf string list.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 389 | / named!(pub parse_perf_string_list<&[u8], Vec<String> >,
[INFO] [stderr] 390 | |     do_parse!(
[INFO] [stderr] 391 | |         nr: le_u32 >>
[INFO] [stderr] 392 | |         strings: count!(parse_perf_string, nr as usize) >>
[INFO] [stderr] 393 | |         (strings)
[INFO] [stderr] 394 | |     )
[INFO] [stderr] 395 | | );
[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/linux/parser.rs:502:1
[INFO] [stderr]     |
[INFO] [stderr] 502 |   /// Parse a perf header
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 503 | / named!(pub parse_header<&[u8], PerfFileHeader>,
[INFO] [stderr] 504 | |     do_parse!(
[INFO] [stderr] 505 | |         tag!("PERFILE2") >>
[INFO] [stderr] 506 | |         size: le_u64 >>
[INFO] [stderr] ...   |
[INFO] [stderr] 557 | |     )
[INFO] [stderr] 558 | | );
[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/linux/parser.rs:560:1
[INFO] [stderr]     |
[INFO] [stderr] 560 |   /// Parse a perf header
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 561 | / named!(pub parse_event_attr<&[u8], EventAttr>,
[INFO] [stderr] 562 | |     do_parse!(
[INFO] [stderr] 563 | |         attr_type: le_u32 >>
[INFO] [stderr] 564 | |         size: le_u32 >>
[INFO] [stderr] ...   |
[INFO] [stderr] 600 | |         })
[INFO] [stderr] 601 | | ));
[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: field is never used: `attributes`
[INFO] [stderr]    --> src/linux/mod.rs:719:5
[INFO] [stderr]     |
[INFO] [stderr] 719 |     attributes: perf_format::EventAttr,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pc`
[INFO] [stderr]    --> src/linux/mod.rs:767:5
[INFO] [stderr]     |
[INFO] [stderr] 767 |     pc: PerfCounter,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `attributes`
[INFO] [stderr]    --> src/linux/mod.rs:719:5
[INFO] [stderr]     |
[INFO] [stderr] 719 |     attributes: perf_format::EventAttr,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pc`
[INFO] [stderr]    --> src/linux/mod.rs:767:5
[INFO] [stderr]     |
[INFO] [stderr] 767 |     pc: PerfCounter,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.88s
[INFO] running `"docker" "inspect" "5943a8ec4ddff87c7bd8caba11dc25516b4ba4d3bc2b378efa8d784c8189937b"`
[INFO] running `"docker" "rm" "-f" "5943a8ec4ddff87c7bd8caba11dc25516b4ba4d3bc2b378efa8d784c8189937b"`
[INFO] [stdout] 5943a8ec4ddff87c7bd8caba11dc25516b4ba4d3bc2b378efa8d784c8189937b