[INFO] crate littlefs 0.2.0 is already in cache
[INFO] extracting crate littlefs 0.2.0 into work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/littlefs/0.2.0
[INFO] extracting crate littlefs 0.2.0 into work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/littlefs/0.2.0
[INFO] validating manifest of littlefs-0.2.0 on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of littlefs-0.2.0 on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing littlefs-0.2.0
[INFO] finished frobbing littlefs-0.2.0
[INFO] frobbed toml for littlefs-0.2.0 written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/littlefs/0.2.0/Cargo.toml
[INFO] started frobbing littlefs-0.2.0
[INFO] finished frobbing littlefs-0.2.0
[INFO] frobbed toml for littlefs-0.2.0 written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/littlefs/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking littlefs-0.2.0 against try#78b0bd8441ef961f6475e3d47fe3bca38cb83432 for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-1/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/littlefs/0.2.0:/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" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 13cbc1d84700b50d3b4b8f775bff5c04ad9d21ca1199975743ab95c47fde3247
[INFO] running `"docker" "start" "-a" "13cbc1d84700b50d3b4b8f775bff5c04ad9d21ca1199975743ab95c47fde3247"`
[INFO] [stderr]     Checking cty v0.1.5
[INFO] [stderr]    Compiling littlefs-sys v0.2.0
[INFO] [stderr]     Checking littlefs v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/lib.rs:219:1
[INFO] [stderr]     |
[INFO] [stderr] 219 | / /// Definition of file open flags which can be mixed and matched as appropriate. These definitions
[INFO] [stderr] 220 | | /// are reminiscent of the ones defined by POSIX.
[INFO] [stderr]     | |_________________________________________________^
[INFO] [stderr] 221 | / bitflags! {
[INFO] [stderr] 222 | |     pub struct FileOpenFlags: u32 {
[INFO] [stderr] 223 | |         /// Open file in read only mode.
[INFO] [stderr] 224 | |         const RDONLY = 0x1;
[INFO] [stderr] ...   |
[INFO] [stderr] 237 | |     }
[INFO] [stderr] 238 | | }
[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/lib.rs:219:1
[INFO] [stderr]     |
[INFO] [stderr] 219 | / /// Definition of file open flags which can be mixed and matched as appropriate. These definitions
[INFO] [stderr] 220 | | /// are reminiscent of the ones defined by POSIX.
[INFO] [stderr]     | |_________________________________________________^
[INFO] [stderr] 221 | / bitflags! {
[INFO] [stderr] 222 | |     pub struct FileOpenFlags: u32 {
[INFO] [stderr] 223 | |         /// Open file in read only mode.
[INFO] [stderr] 224 | |         const RDONLY = 0x1;
[INFO] [stderr] ...   |
[INFO] [stderr] 237 | |     }
[INFO] [stderr] 238 | | }
[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]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `"docker" "inspect" "13cbc1d84700b50d3b4b8f775bff5c04ad9d21ca1199975743ab95c47fde3247"`
[INFO] running `"docker" "rm" "-f" "13cbc1d84700b50d3b4b8f775bff5c04ad9d21ca1199975743ab95c47fde3247"`
[INFO] [stdout] 13cbc1d84700b50d3b4b8f775bff5c04ad9d21ca1199975743ab95c47fde3247