[INFO] cloning repository https://github.com/sucy1/feat-night-rust-mdbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sucy1/feat-night-rust-mdbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsucy1%2Ffeat-night-rust-mdbook", kill_on_drop: false }`
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[INFO] [stdout] fcb4f7091dde23efa7eacae4524f27ac1bcf4217
[INFO] fixing sucy1/feat-night-rust-mdbook against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsucy1%2Ffeat-night-rust-mdbook" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `SearchIndexItem` and `SearchIndex`
[INFO] [stdout]  --> src/search/mod.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use indexer::{SearchIndex, SearchIndexItem, generate_search_index};
[INFO] [stdout]   |                   ^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SearchIndexItem` and `SearchIndex`
[INFO] [stdout]  --> src/search/mod.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use indexer::{SearchIndex, SearchIndexItem, generate_search_index};
[INFO] [stdout]   |                   ^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/search/indexer.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout]     |                                                                          ---- ^^^^ expected `char`, found `&char`
[INFO] [stdout]     |                                                                          |
[INFO] [stdout]     |                                                                          arguments to this enum variant are incorrect
[INFO] [stdout]     |
[INFO] [stdout] help: the type constructed contains `&char` due to the type of the argument passed
[INFO] [stdout]    --> src/search/indexer.rs:226:74
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout]     |                                                                          ^^^^^----^
[INFO] [stdout]     |                                                                               |
[INFO] [stdout]     |                                                                               this argument influences the type of `Some`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/core/src/option.rs:605:4
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 226 -                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout] 226 +                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some('`') {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/search/indexer.rs:226:79
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout]     |                                                                          ---- ^^^^ expected `char`, found `&char`
[INFO] [stdout]     |                                                                          |
[INFO] [stdout]     |                                                                          arguments to this enum variant are incorrect
[INFO] [stdout]     |
[INFO] [stdout] help: the type constructed contains `&char` due to the type of the argument passed
[INFO] [stdout]    --> src/search/indexer.rs:226:74
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout]     |                                                                          ^^^^^----^
[INFO] [stdout]     |                                                                               |
[INFO] [stdout]     |                                                                               this argument influences the type of `Some`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/core/src/option.rs:605:4
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 226 -                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some(&'`') {
[INFO] [stdout] 226 +                 if chars.peek() == Some(&'`') && chars.clone().nth(1) == Some('`') {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `title` found for mutable reference `&mut BookBuilder` in the current scope
[INFO] [stdout]   --> tests/testsuite/search_json.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         builder
[INFO] [stdout] 55 | |             .title("Test Book")
[INFO] [stdout]    | |             -^^^^^ method not found in `&mut BookBuilder`
[INFO] [stdout]    | |_____________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdbook` (bin "mdbook" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdbook` (bin "mdbook") due to 1 previous error; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdbook` (test "testsuite") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e24aa9885481d732386d273eccba6653edd981853fd796e73b711513fee0df8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24aa9885481d732386d273eccba6653edd981853fd796e73b711513fee0df8e", kill_on_drop: false }`
[INFO] [stdout] e24aa9885481d732386d273eccba6653edd981853fd796e73b711513fee0df8e
