[INFO] cloning repository https://github.com/jg-rp/rust-iregexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jg-rp/rust-iregexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjg-rp%2Frust-iregexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjg-rp%2Frust-iregexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 989376a98cf6ec2033ece40c8deba3bdc28748d9
[INFO] checking jg-rp/rust-iregexp 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%2Fjg-rp%2Frust-iregexp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jg-rp/rust-iregexp
[INFO] finished tweaking git repo https://github.com/jg-rp/rust-iregexp
[INFO] tweaked toml for git repo https://github.com/jg-rp/rust-iregexp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jg-rp/rust-iregexp 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/jg-rp/rust-iregexp 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 20f6dd15e66baaec4ce1dd885bf9d4f8f59141c659731083e9420d5b5d485e3b
[INFO] running `Command { std: "docker" "start" "-a" "20f6dd15e66baaec4ce1dd885bf9d4f8f59141c659731083e9420d5b5d485e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20f6dd15e66baaec4ce1dd885bf9d4f8f59141c659731083e9420d5b5d485e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f6dd15e66baaec4ce1dd885bf9d4f8f59141c659731083e9420d5b5d485e3b", kill_on_drop: false }`
[INFO] [stdout] 20f6dd15e66baaec4ce1dd885bf9d4f8f59141c659731083e9420d5b5d485e3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9a9c76c24e3b5545bb1ea7092fd5fb0b75a3970a2e90949fcd8444735f7371ff
[INFO] running `Command { std: "docker" "start" "-a" "9a9c76c24e3b5545bb1ea7092fd5fb0b75a3970a2e90949fcd8444735f7371ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pyo3-build-config v0.25.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.25.1
[INFO] [stderr]    Compiling pyo3-ffi v0.25.1
[INFO] [stderr]    Compiling pyo3 v0.25.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling pest v2.8.1
[INFO] [stderr]    Compiling pest_meta v2.8.1
[INFO] [stderr]    Compiling pyo3-macros v0.25.1
[INFO] [stderr]    Compiling pest_generator v2.8.1
[INFO] [stderr]    Compiling pest_derive v2.8.1
[INFO] [stderr]     Checking iregexp v0.1.2 (/opt/rustwide/workdir/crates/iregexp)
[INFO] [stderr]     Checking i_regexp v0.1.4 (/opt/rustwide/workdir/crates/python)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]  --> crates/python/src/lib.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn py_check(pattern: &str) -> bool {
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i_regexp` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]  --> crates/python/src/lib.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn py_check(pattern: &str) -> bool {
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i_regexp` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9a9c76c24e3b5545bb1ea7092fd5fb0b75a3970a2e90949fcd8444735f7371ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a9c76c24e3b5545bb1ea7092fd5fb0b75a3970a2e90949fcd8444735f7371ff", kill_on_drop: false }`
[INFO] [stdout] 9a9c76c24e3b5545bb1ea7092fd5fb0b75a3970a2e90949fcd8444735f7371ff