[INFO] fetching crate varlink_derive 8.0.0...
[INFO] documenting varlink_derive-8.0.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate varlink_derive 8.0.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate varlink_derive 8.0.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate varlink_derive 8.0.0
[INFO] finished tweaking crates.io crate varlink_derive 8.0.0
[INFO] tweaked toml for crates.io crate varlink_derive 8.0.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49ac825e02d263cb5f9cfe87e37e6269e428c7c4ac0e49b4c0196984dc953f98
[INFO] running `Command { std: "docker" "start" "-a" "49ac825e02d263cb5f9cfe87e37e6269e428c7c4ac0e49b4c0196984dc953f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49ac825e02d263cb5f9cfe87e37e6269e428c7c4ac0e49b4c0196984dc953f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ac825e02d263cb5f9cfe87e37e6269e428c7c4ac0e49b4c0196984dc953f98", kill_on_drop: false }`
[INFO] [stdout] 49ac825e02d263cb5f9cfe87e37e6269e428c7c4ac0e49b4c0196984dc953f98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f22dfc4161853ec429450273940f5929c748ec45470d86022438dcdd79341f8c
[INFO] running `Command { std: "docker" "start" "-a" "f22dfc4161853ec429450273940f5929c748ec45470d86022438dcdd79341f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking chainerror v0.7.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking chainerror v0.4.3
[INFO] [stdout] error[E0119]: conflicting implementations of trait `std::error::Error` for type `&ChainError<_>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/chainerror-0.4.3/src/lib.rs:493:1
[INFO] [stdout]     |
[INFO] [stdout] 493 | impl<T: 'static + Display + Debug> Error for &ChainError<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: conflicting implementation in crate `std`:
[INFO] [stdout]             - impl<'a, T> std::error::Error for &'a T
[INFO] [stdout]               where T: std::error::Error, T: ?Sized;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chainerror` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f22dfc4161853ec429450273940f5929c748ec45470d86022438dcdd79341f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22dfc4161853ec429450273940f5929c748ec45470d86022438dcdd79341f8c", kill_on_drop: false }`
[INFO] [stdout] f22dfc4161853ec429450273940f5929c748ec45470d86022438dcdd79341f8c