[INFO] crate rst 0.2.0 is already in cache
[INFO] extracting crate rst 0.2.0 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rst/0.2.0
[INFO] extracting crate rst 0.2.0 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rst/0.2.0
[INFO] validating manifest of rst-0.2.0 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rst-0.2.0 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rst-0.2.0
[INFO] finished frobbing rst-0.2.0
[INFO] frobbed toml for rst-0.2.0 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rst/0.2.0/Cargo.toml
[INFO] started frobbing rst-0.2.0
[INFO] finished frobbing rst-0.2.0
[INFO] frobbed toml for rst-0.2.0 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rst/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking rst-0.2.0 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rst/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 65674b2e14e810450e27e764c98d5f7c8f50cfcf461c293a3abb5caaa7153984
[INFO] running `"docker" "start" "-a" "65674b2e14e810450e27e764c98d5f7c8f50cfcf461c293a3abb5caaa7153984"`
[INFO] [stderr]     Checking rst v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document_tree/element_categories.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut children = self.children_mut();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BulletListType`
[INFO] [stderr]   --> src/parser/token.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum BulletListType { Ast, Plus, Minus, Bullet, TriBullet, HyphenBullet }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `EnumListChar`
[INFO] [stderr]   --> src/parser/token.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum EnumListChar { Arabic, AlphaUpper, AlphaLower, RomanUpper, RomanLower, Auto }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `EnumListType`
[INFO] [stderr]   --> src/parser/token.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | enum EnumListType { Period, ParenEnclosed, Paren }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AdornmentChar`
[INFO] [stderr]   --> src/parser/token.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | enum AdornmentChar {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FootnoteType`
[INFO] [stderr]   --> src/parser/token.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | enum FootnoteType { Numbered(usize), AutoNumber, AutoSymbol, AutoNamed(String) }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenBlockLevel`
[INFO] [stderr]   --> src/parser/token.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | enum TokenBlockLevel {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document_tree/element_categories.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let mut children = self.children_mut();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BulletListType`
[INFO] [stderr]   --> src/parser/token.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum BulletListType { Ast, Plus, Minus, Bullet, TriBullet, HyphenBullet }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `EnumListChar`
[INFO] [stderr]   --> src/parser/token.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum EnumListChar { Arabic, AlphaUpper, AlphaLower, RomanUpper, RomanLower, Auto }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `EnumListType`
[INFO] [stderr]   --> src/parser/token.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | enum EnumListType { Period, ParenEnclosed, Paren }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AdornmentChar`
[INFO] [stderr]   --> src/parser/token.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | enum AdornmentChar {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FootnoteType`
[INFO] [stderr]   --> src/parser/token.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | enum FootnoteType { Numbered(usize), AutoNumber, AutoSymbol, AutoNamed(String) }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenBlockLevel`
[INFO] [stderr]   --> src/parser/token.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | enum TokenBlockLevel {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "65674b2e14e810450e27e764c98d5f7c8f50cfcf461c293a3abb5caaa7153984"`
[INFO] running `"docker" "rm" "-f" "65674b2e14e810450e27e764c98d5f7c8f50cfcf461c293a3abb5caaa7153984"`
[INFO] [stdout] 65674b2e14e810450e27e764c98d5f7c8f50cfcf461c293a3abb5caaa7153984