[INFO] fetching crate vex-llm 1.7.0...
[INFO] checking vex-llm-1.7.0 against try#1c4199da70f816f2239f41c55168ff75a3663718 for pr-155499
[INFO] extracting crate vex-llm 1.7.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate vex-llm 1.7.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate vex-llm 1.7.0
[INFO] tweaked toml for crates.io crate vex-llm 1.7.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vex-llm 1.7.0 on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vex-llm 1.7.0 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" "+1c4199da70f816f2239f41c55168ff75a3663718" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c96f3dbd506f70fa5ac9e2f57f9f2628b6698b78364c84c99f6d55a299fbfbec
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[INFO] running `Command { std: "docker" "rm" "-f" "c96f3dbd506f70fa5ac9e2f57f9f2628b6698b78364c84c99f6d55a299fbfbec", kill_on_drop: false }`
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[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 648109d058432c433fcb0ec7878b775c1a6351214885e072344998585f7fe264
[INFO] running `Command { std: "docker" "start" "-a" "648109d058432c433fcb0ec7878b775c1a6351214885e072344998585f7fe264", kill_on_drop: false }`
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[INFO] [stdout] error[E0277]: the trait bound `!: serde::Deserialize<'de>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/picky-asn1-x509-0.12.0/src/macros.rs:14:14
[INFO] [stdout]      |
[INFO] [stdout]   14 |         $seq.next_element()?.ok_or_else(|| {
[INFO] [stdout]      |              ^^^^^^^^^^^^ the trait `Deserialize<'de>` is not implemented for `!`
[INFO] [stdout]      |
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/picky-asn1-x509-0.12.0/src/algorithm_identifier.rs:349:25
[INFO] [stdout]      |
[INFO] [stdout]  349 |                         seq_next_element!(seq, AlgorithmIdentifier, "sha algorithm identifier");
[INFO] [stdout]      |                         ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `!` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `Deserialize<'de>`:
[INFO] [stdout]                &'a Path
[INFO] [stdout]                &'a [u8]
[INFO] [stdout]                &'a str
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]              and 235 others
[INFO] [stdout]      = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]      = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `next_element`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.228/src/de/mod.rs:1771:12
[INFO] [stdout]      |
[INFO] [stdout] 1769 |     fn next_element<T>(&mut self) -> Result<Option<T>, Self::Error>
[INFO] [stdout]      |        ------------ required by a bound in this associated function
[INFO] [stdout] 1770 |     where
[INFO] [stdout] 1771 |         T: Deserialize<'de>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^ required by this bound in `SeqAccess::next_element`
[INFO] [stdout]      = note: this error originates in the macro `seq_next_element` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
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[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `picky-asn1-x509` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "648109d058432c433fcb0ec7878b775c1a6351214885e072344998585f7fe264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648109d058432c433fcb0ec7878b775c1a6351214885e072344998585f7fe264", kill_on_drop: false }`
[INFO] [stdout] 648109d058432c433fcb0ec7878b775c1a6351214885e072344998585f7fe264
