[INFO] fetching crate fallible 0.1.3...
[INFO] checking fallible-0.1.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fallible 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fallible 0.1.3
[INFO] finished tweaking crates.io crate fallible 0.1.3
[INFO] tweaked toml for crates.io crate fallible 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fallible 0.1.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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-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] 6bec6d026a0d8139c347ea09e215f16cad8c76abeed130a71dd25d17a4b7e038
[INFO] running `Command { std: "docker" "start" "-a" "6bec6d026a0d8139c347ea09e215f16cad8c76abeed130a71dd25d17a4b7e038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bec6d026a0d8139c347ea09e215f16cad8c76abeed130a71dd25d17a4b7e038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bec6d026a0d8139c347ea09e215f16cad8c76abeed130a71dd25d17a4b7e038", kill_on_drop: false }`
[INFO] [stdout] 6bec6d026a0d8139c347ea09e215f16cad8c76abeed130a71dd25d17a4b7e038
[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] 2438545a4066190e0a6827b177fa5bb010194fc890fa325100abe2986fb9c6f3
[INFO] running `Command { std: "docker" "start" "-a" "2438545a4066190e0a6827b177fa5bb010194fc890fa325100abe2986fb9c6f3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fallible v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<<I as Iterator>::Item>, Void>
[INFO] [stdout]   --> src/iter.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn try_next(&mut self) -> Result<Option<Self::Item>, Void> { Ok(self.next()) }
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<<I as Iterator>::Item>, Void>
[INFO] [stdout]   --> src/iter.rs:13:66
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn try_next(&mut self) -> Result<Option<Self::Item>, Void> { Ok(self.next()) }
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible` (lib) 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<<I as Iterator>::Item>, Void>
[INFO] [stdout]   --> src/iter.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn try_next(&mut self) -> Result<Option<Self::Item>, Void> { Ok(self.next()) }
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<<I as Iterator>::Item>, Void>
[INFO] [stdout]   --> src/iter.rs:13:66
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn try_next(&mut self) -> Result<Option<Self::Item>, Void> { Ok(self.next()) }
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2438545a4066190e0a6827b177fa5bb010194fc890fa325100abe2986fb9c6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2438545a4066190e0a6827b177fa5bb010194fc890fa325100abe2986fb9c6f3", kill_on_drop: false }`
[INFO] [stdout] 2438545a4066190e0a6827b177fa5bb010194fc890fa325100abe2986fb9c6f3