[INFO] fetching crate canonical_derive 0.7.0...
[INFO] documenting canonical_derive-0.7.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate canonical_derive 0.7.0 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate canonical_derive 0.7.0 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 canonical_derive 0.7.0
[INFO] finished tweaking crates.io crate canonical_derive 0.7.0
[INFO] tweaked toml for crates.io crate canonical_derive 0.7.0 written to /workspace/builds/worker-45/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 538ae71f496126527511f5650b259b37043b9c72915784d4d6ba545e77c1d9bd
[INFO] running `Command { std: "docker" "start" "-a" "538ae71f496126527511f5650b259b37043b9c72915784d4d6ba545e77c1d9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "538ae71f496126527511f5650b259b37043b9c72915784d4d6ba545e77c1d9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "538ae71f496126527511f5650b259b37043b9c72915784d4d6ba545e77c1d9bd", kill_on_drop: false }`
[INFO] [stdout] 538ae71f496126527511f5650b259b37043b9c72915784d4d6ba545e77c1d9bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 01de7b6825f3d58e88e14a48466c89af66b66a077dae104dc382e52e1f075ac4
[INFO] running `Command { std: "docker" "start" "-a" "01de7b6825f3d58e88e14a48466c89af66b66a077dae104dc382e52e1f075ac4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking dusk-varint v0.1.0
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking blake2b_simd v0.3.1
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling derive_arbitrary v1.1.0
[INFO] [stderr]     Checking arbitrary v1.1.0
[INFO] [stderr]     Checking canonical v0.7.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/canonical-0.7.1/src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `canonical` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01de7b6825f3d58e88e14a48466c89af66b66a077dae104dc382e52e1f075ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01de7b6825f3d58e88e14a48466c89af66b66a077dae104dc382e52e1f075ac4", kill_on_drop: false }`
[INFO] [stdout] 01de7b6825f3d58e88e14a48466c89af66b66a077dae104dc382e52e1f075ac4