[INFO] crate subparse 0.3.0 is already in cache
[INFO] extracting crate subparse 0.3.0 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/subparse/0.3.0
[INFO] extracting crate subparse 0.3.0 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/subparse/0.3.0
[INFO] validating manifest of subparse-0.3.0 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of subparse-0.3.0 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing subparse-0.3.0
[INFO] finished frobbing subparse-0.3.0
[INFO] frobbed toml for subparse-0.3.0 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/subparse/0.3.0/Cargo.toml
[INFO] started frobbing subparse-0.3.0
[INFO] finished frobbing subparse-0.3.0
[INFO] frobbed toml for subparse-0.3.0 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/subparse/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking subparse-0.3.0 against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-6/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/subparse/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=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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb083b2f2b31f3f137a6d685db9f1e7745c7c2bcc29d23a29690e0af5b51e905
[INFO] running `"docker" "start" "-a" "fb083b2f2b31f3f137a6d685db9f1e7745c7c2bcc29d23a29690e0af5b51e905"`
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking vobsub v0.2.3
[INFO] [stderr]     Checking subparse v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/formats/srt.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         /// Matches a `SubRip` timestamp like "00:24:45,670"
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/formats/microdvd.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         /// Matches the regex "\{[^}]*\}"; parses something like "{some_info}".
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/formats/srt.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         /// Matches a `SubRip` timestamp like "00:24:45,670"
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/formats/microdvd.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         /// Matches the regex "\{[^}]*\}"; parses something like "{some_info}".
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/formats/idx.rs:178:15
[INFO] [stderr]     |
[INFO] [stderr] 178 |         if !s.trim_left().starts_with("timestamp:") {
[INFO] [stderr]     |               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/formats/idx.rs:178:15
[INFO] [stderr]     |
[INFO] [stderr] 178 |         if !s.trim_left().starts_with("timestamp:") {
[INFO] [stderr]     |               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/formats/vobsub.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             VobSubError(vobsub::Error)
[INFO] [stderr] 22 | |             /// Error from the `vobsub` crate
[INFO] [stderr] 23 | |             ;
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / error_chain! {
[INFO] [stderr] 17 | |     foreign_links {
[INFO] [stderr] 18 | |         FromUtf8Error(::std::string::FromUtf8Error)
[INFO] [stderr] 19 | |         /// Converting byte-stream to string failed.
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/formats/vobsub.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             VobSubError(vobsub::Error)
[INFO] [stderr] 22 | |             /// Error from the `vobsub` crate
[INFO] [stderr] 23 | |             ;
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / error_chain! {
[INFO] [stderr] 17 | |     foreign_links {
[INFO] [stderr] 18 | |         FromUtf8Error(::std::string::FromUtf8Error)
[INFO] [stderr] 19 | |         /// Converting byte-stream to string failed.
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |     }
[INFO] [stderr] 68 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `"docker" "inspect" "fb083b2f2b31f3f137a6d685db9f1e7745c7c2bcc29d23a29690e0af5b51e905"`
[INFO] running `"docker" "rm" "-f" "fb083b2f2b31f3f137a6d685db9f1e7745c7c2bcc29d23a29690e0af5b51e905"`
[INFO] [stdout] fb083b2f2b31f3f137a6d685db9f1e7745c7c2bcc29d23a29690e0af5b51e905