[INFO] fetching crate mmap-rs 0.7.0...
[INFO] checking mmap-rs-0.7.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mmap-rs 0.7.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mmap-rs 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mmap-rs 0.7.0
[INFO] tweaked toml for crates.io crate mmap-rs 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mmap-rs 0.7.0 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 crates.io crate mmap-rs 0.7.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 20cba234121c16090c5a90cc2c28389e42971575b2b81f23941a300f0b4f4923
[INFO] running `Command { std: "docker" "start" "-a" "20cba234121c16090c5a90cc2c28389e42971575b2b81f23941a300f0b4f4923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20cba234121c16090c5a90cc2c28389e42971575b2b81f23941a300f0b4f4923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20cba234121c16090c5a90cc2c28389e42971575b2b81f23941a300f0b4f4923", kill_on_drop: false }`
[INFO] [stdout] 20cba234121c16090c5a90cc2c28389e42971575b2b81f23941a300f0b4f4923
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 93f3a0af997292a600677b91c7ef1d70b3bf9e3aac38ae54b9c7508308e1c145
[INFO] running `Command { std: "docker" "start" "-a" "93f3a0af997292a600677b91c7ef1d70b3bf9e3aac38ae54b9c7508308e1c145", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]     Checking bitflags v2.9.4
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking combine v4.6.7
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling enum-as-inner v0.6.1
[INFO] [stderr]     Checking sysctl v0.6.0
[INFO] [stderr]     Checking mmap-rs v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<mmap::Mmap, Infallible>
[INFO] [stdout]   --> src/lib.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mapping: Mmap = mapping.try_into().unwrap();
[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 `mmap-rs` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "93f3a0af997292a600677b91c7ef1d70b3bf9e3aac38ae54b9c7508308e1c145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f3a0af997292a600677b91c7ef1d70b3bf9e3aac38ae54b9c7508308e1c145", kill_on_drop: false }`
[INFO] [stdout] 93f3a0af997292a600677b91c7ef1d70b3bf9e3aac38ae54b9c7508308e1c145