[INFO] fetching crate hexbytes 0.1.0...
[INFO] testing hexbytes-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate hexbytes 0.1.0 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate hexbytes 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hexbytes 0.1.0
[INFO] finished tweaking crates.io crate hexbytes 0.1.0
[INFO] tweaked toml for crates.io crate hexbytes 0.1.0 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88375af3769dc6dd6b6ba8db79b075aed2e60dca9aff8c9415012dd913a222db
[INFO] running `Command { std: "docker" "start" "-a" "88375af3769dc6dd6b6ba8db79b075aed2e60dca9aff8c9415012dd913a222db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88375af3769dc6dd6b6ba8db79b075aed2e60dca9aff8c9415012dd913a222db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88375af3769dc6dd6b6ba8db79b075aed2e60dca9aff8c9415012dd913a222db", kill_on_drop: false }`
[INFO] [stdout] 88375af3769dc6dd6b6ba8db79b075aed2e60dca9aff8c9415012dd913a222db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 922f30faf18f41f9f28ea766701f19f3cfa47734201c3cd112552e2e12f0cef7
[INFO] running `Command { std: "docker" "start" "-a" "922f30faf18f41f9f28ea766701f19f3cfa47734201c3cd112552e2e12f0cef7", kill_on_drop: false }`
[INFO] [stderr]    Compiling hexbytes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `proc_macro::TokenNode`
[INFO] [stdout]   --> src/lib.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 | use proc_macro::{TokenStream, TokenNode};
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               no `TokenNode` in the root
[INFO] [stdout]    |                               help: a similar name exists in the module: `TokenTree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     enum State { First, Second };
[INFO] [stdout]    |                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `kind` on type `proc_macro::TokenTree`
[INFO] [stdout]   --> src/lib.rs:42:37
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let literal = match first_token.kind {
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hexbytes` due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "922f30faf18f41f9f28ea766701f19f3cfa47734201c3cd112552e2e12f0cef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "922f30faf18f41f9f28ea766701f19f3cfa47734201c3cd112552e2e12f0cef7", kill_on_drop: false }`
[INFO] [stdout] 922f30faf18f41f9f28ea766701f19f3cfa47734201c3cd112552e2e12f0cef7