[INFO] cloning repository https://github.com/pbzweihander/markdown-toc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pbzweihander/markdown-toc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbzweihander%2Fmarkdown-toc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbzweihander%2Fmarkdown-toc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3959ec49095c62d4697bfd8c8741c4a2587e8a7e
[INFO] checking pbzweihander/markdown-toc against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpbzweihander%2Fmarkdown-toc" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pbzweihander/markdown-toc
[INFO] finished tweaking git repo https://github.com/pbzweihander/markdown-toc
[INFO] tweaked toml for git repo https://github.com/pbzweihander/markdown-toc written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pbzweihander/markdown-toc on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pbzweihander/markdown-toc 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c02e02ae65ba477d0df5578122109f9934f560d62406ed2a64ca6f4522bff909
[INFO] running `Command { std: "docker" "start" "-a" "c02e02ae65ba477d0df5578122109f9934f560d62406ed2a64ca6f4522bff909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c02e02ae65ba477d0df5578122109f9934f560d62406ed2a64ca6f4522bff909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02e02ae65ba477d0df5578122109f9934f560d62406ed2a64ca6f4522bff909", kill_on_drop: false }`
[INFO] [stdout] c02e02ae65ba477d0df5578122109f9934f560d62406ed2a64ca6f4522bff909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0605ab7aea6e90f3c13d9f9830b629c11a9112a222d7405a868050a223fe70d4
[INFO] running `Command { std: "docker" "start" "-a" "0605ab7aea6e90f3c13d9f9830b629c11a9112a222d7405a868050a223fe70d4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking markdown-toc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/main.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |             if let Some(val) = opt_matches.opt_get($o).map_err(|_| ())? {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |         bullet: get_opt_or_default!("bullet", bullet),
[INFO] [stdout]    |                 ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `get_opt_or_default` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             opt_matches.opt_get($o).map_err(|_| ())?.or(default.$p)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |             get_opt_or_default_option!("header", header)
[INFO] [stdout]    |             -------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `get_opt_or_default_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `markdown-toc` (bin "md-toc" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/main.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |             if let Some(val) = opt_matches.opt_get($o).map_err(|_| ())? {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |         bullet: get_opt_or_default!("bullet", bullet),
[INFO] [stdout]    |                 ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `get_opt_or_default` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             opt_matches.opt_get($o).map_err(|_| ())?.or(default.$p)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |             get_opt_or_default_option!("header", header)
[INFO] [stdout]    |             -------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `get_opt_or_default_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `markdown-toc` (bin "md-toc") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0605ab7aea6e90f3c13d9f9830b629c11a9112a222d7405a868050a223fe70d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0605ab7aea6e90f3c13d9f9830b629c11a9112a222d7405a868050a223fe70d4", kill_on_drop: false }`
[INFO] [stdout] 0605ab7aea6e90f3c13d9f9830b629c11a9112a222d7405a868050a223fe70d4