[INFO] cloning repository https://github.com/noduh/Markdown-to-HTML
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noduh/Markdown-to-HTML" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoduh%2FMarkdown-to-HTML", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoduh%2FMarkdown-to-HTML'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 575f6309178808e108ed3912737b01eb7bd0b22e
[INFO] checking noduh/Markdown-to-HTML against master#df1ae0f7dd168513de2d89beb2cb7a95d4fdc118 for pr-159343
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoduh%2FMarkdown-to-HTML" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/noduh/Markdown-to-HTML
[INFO] finished tweaking git repo https://github.com/noduh/Markdown-to-HTML
[INFO] tweaked toml for git repo https://github.com/noduh/Markdown-to-HTML written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/noduh/Markdown-to-HTML on toolchain df1ae0f7dd168513de2d89beb2cb7a95d4fdc118
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/noduh/Markdown-to-HTML already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4
[INFO] running `Command { std: "docker" "start" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking md_to_html v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::btree_set::Iter`
[INFO] [stdout]  --> src/formatted_text.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::btree_set::Iter;
[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 import: `formatted_text::FormattedText`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use formatted_text::FormattedText;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::btree_set::Iter`
[INFO] [stdout]  --> src/formatted_text.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::btree_set::Iter;
[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 import: `formatted_text::FormattedText`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use formatted_text::FormattedText;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> src/formatted_text.rs:113:14
[INFO] [stdout]     |
[INFO] [stdout]  89 |       fn get_end(&mut self) -> Option<&mut FormattedText> {
[INFO] [stdout]     |                  - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout]  96 |           if let Some(Content::ChildNode(child)) = self
[INFO] [stdout]     |  __________________________________________________-
[INFO] [stdout]  97 | |             .content
[INFO] [stdout]     | |____________________- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 107 |                       return child_end;
[INFO] [stdout]     |                              --------- returning this value requires that `self.content` is borrowed for `'1`
[INFO] [stdout] ...
[INFO] [stdout] 113 |           Some(self)
[INFO] [stdout]     |                ^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `md_to_html` (bin "md_to_html" test) due to 1 previous error; 2 warnings emitted
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> src/formatted_text.rs:113:14
[INFO] [stdout]     |
[INFO] [stdout]  89 |       fn get_end(&mut self) -> Option<&mut FormattedText> {
[INFO] [stdout]     |                  - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout]  96 |           if let Some(Content::ChildNode(child)) = self
[INFO] [stdout]     |  __________________________________________________-
[INFO] [stdout]  97 | |             .content
[INFO] [stdout]     | |____________________- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 107 |                       return child_end;
[INFO] [stdout]     |                              --------- returning this value requires that `self.content` is borrowed for `'1`
[INFO] [stdout] ...
[INFO] [stdout] 113 |           Some(self)
[INFO] [stdout]     |                ^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `md_to_html` (bin "md_to_html") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4", kill_on_drop: false }`
[INFO] [stdout] 002c838aece1b87d7fcd223f8446afa9f6be92525edbac47701ab41f9e0747c4
