[INFO] fetching crate car-utils 0.3.2...
[INFO] documenting car-utils-0.3.2 against 1.100.0-beta.1 for beta-rustdoc-1.100
[INFO] extracting crate car-utils 0.3.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate car-utils 0.3.2
[INFO] finished tweaking crates.io crate car-utils 0.3.2
[INFO] tweaked toml for crates.io crate car-utils 0.3.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate car-utils 0.3.2 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] crate crates.io crate car-utils 0.3.2 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca
[INFO] running `Command { std: "docker" "start" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca", 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" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca" "/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" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca", 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" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking blockless-car v0.3.2
[INFO] [stdout] error[E0277]: the trait bound `!: Decode<DagCborCodec>` is not satisfied
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/blockless-car-0.3.2/src/header/header_v1.rs:3:48
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, Clone, PartialEq, Eq, Default, ipld::DagCbor)]
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^ the trait `Decode<DagCborCodec>` is not implemented for `!`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the following other types implement trait `Decode<C>`:
[INFO] [stdout]             ()
[INFO] [stdout]             (A,)
[INFO] [stdout]             (A, B)
[INFO] [stdout]             (A, B, C)
[INFO] [stdout]             (A, B, C, D)
[INFO] [stdout]             Arc<T>
[INFO] [stdout]             BTreeMap<K, T>
[INFO] [stdout]             Box<[u8]>
[INFO] [stdout]           and 19 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: this error originates in the derive macro `ipld::DagCbor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blockless-car` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca", kill_on_drop: false }`
[INFO] [stdout] c2c80d53adb839f00ce8966a810599804bc4e06185cc20a31c4793eac0f8a4ca
