[INFO] crate rst 0.2.0 is already in cache
[INFO] extracting crate rst 0.2.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/rst/0.2.0
[INFO] extracting crate rst 0.2.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/rst/0.2.0
[INFO] validating manifest of rst-0.2.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rst-0.2.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/rst/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rst-0.2.0 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] fc0a5c30d39c4055fb1a1868c6615dcb94538ea10bcffd43bbb0746bbab0e919
[INFO] running `"docker" "start" "-a" "fc0a5c30d39c4055fb1a1868c6615dcb94538ea10bcffd43bbb0746bbab0e919"`
[INFO] [stderr]    Compiling 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: 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 3.10s
[INFO] running `"docker" "inspect" "fc0a5c30d39c4055fb1a1868c6615dcb94538ea10bcffd43bbb0746bbab0e919"`
[INFO] running `"docker" "rm" "-f" "fc0a5c30d39c4055fb1a1868c6615dcb94538ea10bcffd43bbb0746bbab0e919"`
[INFO] [stdout] fc0a5c30d39c4055fb1a1868c6615dcb94538ea10bcffd43bbb0746bbab0e919
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] a7f78db4bc3b7a8f5bc6efc22196027fdd4365e1ee0aa18914d64550baf233f3
[INFO] running `"docker" "start" "-a" "a7f78db4bc3b7a8f5bc6efc22196027fdd4365e1ee0aa18914d64550baf233f3"`
[INFO] [stderr]    Compiling 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: 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 3.05s
[INFO] running `"docker" "inspect" "a7f78db4bc3b7a8f5bc6efc22196027fdd4365e1ee0aa18914d64550baf233f3"`
[INFO] running `"docker" "rm" "-f" "a7f78db4bc3b7a8f5bc6efc22196027fdd4365e1ee0aa18914d64550baf233f3"`
[INFO] [stdout] a7f78db4bc3b7a8f5bc6efc22196027fdd4365e1ee0aa18914d64550baf233f3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 1316b67617363d3f1323f8268bedfa54031e6a6d475a3048f28500c4ad64302d
[INFO] running `"docker" "start" "-a" "1316b67617363d3f1323f8268bedfa54031e6a6d475a3048f28500c4ad64302d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rst-572acc473b30f1d3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test document_tree::test_imperative ... ok
[INFO] [stdout] test document_tree::test_descriptive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rst
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1316b67617363d3f1323f8268bedfa54031e6a6d475a3048f28500c4ad64302d"`
[INFO] running `"docker" "rm" "-f" "1316b67617363d3f1323f8268bedfa54031e6a6d475a3048f28500c4ad64302d"`
[INFO] [stdout] 1316b67617363d3f1323f8268bedfa54031e6a6d475a3048f28500c4ad64302d