[INFO] fetching crate py_lib_tsalign 0.3.1...
[INFO] checking py_lib_tsalign-0.3.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate py_lib_tsalign 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate py_lib_tsalign 0.3.1
[INFO] finished tweaking crates.io crate py_lib_tsalign 0.3.1
[INFO] tweaked toml for crates.io crate py_lib_tsalign 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate py_lib_tsalign 0.3.1 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 py_lib_tsalign 0.3.1 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 800acf2e74598b51160af0edcaad592e5260d120da8fe2081c3246bae69061db
[INFO] running `Command { std: "docker" "start" "-a" "800acf2e74598b51160af0edcaad592e5260d120da8fe2081c3246bae69061db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "800acf2e74598b51160af0edcaad592e5260d120da8fe2081c3246bae69061db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "800acf2e74598b51160af0edcaad592e5260d120da8fe2081c3246bae69061db", kill_on_drop: false }`
[INFO] [stdout] 800acf2e74598b51160af0edcaad592e5260d120da8fe2081c3246bae69061db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0ec2d1c166a7290206f7b53668dd916656b4848530dd50c20ae5153535842f57
[INFO] running `Command { std: "docker" "start" "-a" "0ec2d1c166a7290206f7b53668dd916656b4848530dd50c20ae5153535842f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling target-lexicon v0.13.2
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[INFO] [stderr]     Checking core_maths v0.1.1
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[INFO] [stderr]    Compiling pyo3-ffi v0.24.2
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[INFO] [stderr]    Compiling pyo3 v0.24.2
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[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling strong-type-derive v0.12.2
[INFO] [stderr]     Checking strong-type v0.12.2
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[INFO] [stderr]    Compiling pyo3-macros v0.24.2
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[INFO] [stderr]     Checking lib_tsalign v0.18.1
[INFO] [stderr]     Checking lib_tsshow v0.18.1
[INFO] [stderr]     Checking py_lib_tsalign v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/lib.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn cigar(&self) -> Option<String> {
[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 `py_lib_tsalign` (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<Option<String>, Infallible>
[INFO] [stdout]   --> src/lib.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn cigar(&self) -> Option<String> {
[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 `py_lib_tsalign` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0ec2d1c166a7290206f7b53668dd916656b4848530dd50c20ae5153535842f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec2d1c166a7290206f7b53668dd916656b4848530dd50c20ae5153535842f57", kill_on_drop: false }`
[INFO] [stdout] 0ec2d1c166a7290206f7b53668dd916656b4848530dd50c20ae5153535842f57
