[INFO] fetching crate amplify_derive_helpers 0.0.4...
[INFO] checking amplify_derive_helpers-0.0.4 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate amplify_derive_helpers 0.0.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate amplify_derive_helpers 0.0.4 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amplify_derive_helpers 0.0.4
[INFO] finished tweaking crates.io crate amplify_derive_helpers 0.0.4
[INFO] tweaked toml for crates.io crate amplify_derive_helpers 0.0.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccefda6d0c02cca1c1d1265e9ad4ed08afbe75fe024d0a044dea1fe905ded569
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ccefda6d0c02cca1c1d1265e9ad4ed08afbe75fe024d0a044dea1fe905ded569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccefda6d0c02cca1c1d1265e9ad4ed08afbe75fe024d0a044dea1fe905ded569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccefda6d0c02cca1c1d1265e9ad4ed08afbe75fe024d0a044dea1fe905ded569", kill_on_drop: false }`
[INFO] [stdout] ccefda6d0c02cca1c1d1265e9ad4ed08afbe75fe024d0a044dea1fe905ded569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 19d6454d666ab04ea9cf67a68054d9a83e16a9495141b9515c32133fb8d3939b
[INFO] running `Command { std: "docker" "start" "-a" "19d6454d666ab04ea9cf67a68054d9a83e16a9495141b9515c32133fb8d3939b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking amplify_derive_helpers v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:492:7
[INFO] [stdout]     |
[INFO] [stdout] 492 | #[doc(hide)]
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:35:5
[INFO] [stdout]     |
[INFO] [stdout] 35  |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(invalid_doc_attributes)]` implied by `#[deny(warnings)]`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:494:11
[INFO] [stdout]     |
[INFO] [stdout] 494 |     #[doc(hide)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:501:11
[INFO] [stdout]     |
[INFO] [stdout] 501 |     #[doc(hide)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:492:7
[INFO] [stdout]     |
[INFO] [stdout] 492 | #[doc(hide)]
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:35:5
[INFO] [stdout]     |
[INFO] [stdout] 35  |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(invalid_doc_attributes)]` implied by `#[deny(warnings)]`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:494:11
[INFO] [stdout]     |
[INFO] [stdout] 494 |     #[doc(hide)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `hide`
[INFO] [stdout]    --> src/attr.rs:501:11
[INFO] [stdout]     |
[INFO] [stdout] 501 |     #[doc(hide)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amplify_derive_helpers`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "19d6454d666ab04ea9cf67a68054d9a83e16a9495141b9515c32133fb8d3939b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d6454d666ab04ea9cf67a68054d9a83e16a9495141b9515c32133fb8d3939b", kill_on_drop: false }`
[INFO] [stdout] 19d6454d666ab04ea9cf67a68054d9a83e16a9495141b9515c32133fb8d3939b