[INFO] fetching crate wasm-msgpack 0.6.2...
[INFO] testing wasm-msgpack-0.6.2 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-3
[INFO] extracting crate wasm-msgpack 0.6.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate wasm-msgpack 0.6.2
[INFO] finished tweaking crates.io crate wasm-msgpack 0.6.2
[INFO] tweaked toml for crates.io crate wasm-msgpack 0.6.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-msgpack 0.6.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to highest compatible versions
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.3)
[INFO] [stderr]       Adding rstest v0.17.0 (available: v0.28.0)
[INFO] [stderr]       Adding zerocopy v0.6.6 (available: v0.8.63)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558
[INFO] running `Command { std: "docker" "start" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.27
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling spin v0.9.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling zerocopy v0.6.6
[INFO] [stderr]    Compiling wasm-msgpack v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `!: serde::Deserialize<'de>` is not satisfied
[INFO] [stdout]     --> src/ext/timestamp.rs:249:33
[INFO] [stdout]      |
[INFO] [stdout]  249 | ...                   map.next_value()?;
[INFO] [stdout]      |                           ^^^^^^^^^^ the trait `ext::_::_serde::Deserialize<'de>` is not implemented for `!`
[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 `ext::_::_serde::Deserialize<'de>`:
[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]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 124 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_value`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.229/src/de/mod.rs:1916:12
[INFO] [stdout]      |
[INFO] [stdout] 1837 | pub trait MapAccess<'de> {
[INFO] [stdout] ...
[INFO] [stdout] 1914 |     fn next_value<V>(&mut self) -> Result<V, Self::Error>
[INFO] [stdout] 1915 |     where
[INFO] [stdout] 1916 |         V: Deserialize<'de>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^ required by this bound in `MapAccess::next_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `!: serde::Deserialize<'de>` is not satisfied
[INFO] [stdout]     --> src/ext/mod.rs:289:33
[INFO] [stdout]      |
[INFO] [stdout]  289 | ...                   map.next_value()?;
[INFO] [stdout]      |                           ^^^^^^^^^^ the trait `ext::_::_serde::Deserialize<'de>` is not implemented for `!`
[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 `ext::_::_serde::Deserialize<'de>`:
[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]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 123 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_value`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.229/src/de/mod.rs:1916:12
[INFO] [stdout]      |
[INFO] [stdout] 1837 | pub trait MapAccess<'de> {
[INFO] [stdout] ...
[INFO] [stdout] 1914 |     fn next_value<V>(&mut self) -> Result<V, Self::Error>
[INFO] [stdout] 1915 |     where
[INFO] [stdout] 1916 |         V: Deserialize<'de>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^ required by this bound in `MapAccess::next_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-msgpack` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558", kill_on_drop: false }`
[INFO] [stdout] 474c37bc7d8cfc1a14fb5957d4cfa738af564ab4354d0fe711dcba1dcfb91558