[INFO] fetching crate tuple_utils 0.4.0...
[INFO] documenting tuple_utils-0.4.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate tuple_utils 0.4.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tuple_utils 0.4.0 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 tuple_utils 0.4.0
[INFO] finished tweaking crates.io crate tuple_utils 0.4.0
[INFO] tweaked toml for crates.io crate tuple_utils 0.4.0 written to /workspace/builds/worker-13/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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f9e5ca77087ffdfe7d199f8083d25ca36904ad2f5348a1c4d40dd1532595b5b0
[INFO] running `Command { std: "docker" "start" "-a" "f9e5ca77087ffdfe7d199f8083d25ca36904ad2f5348a1c4d40dd1532595b5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9e5ca77087ffdfe7d199f8083d25ca36904ad2f5348a1c4d40dd1532595b5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e5ca77087ffdfe7d199f8083d25ca36904ad2f5348a1c4d40dd1532595b5b0", kill_on_drop: false }`
[INFO] [stdout] f9e5ca77087ffdfe7d199f8083d25ca36904ad2f5348a1c4d40dd1532595b5b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] aebf9fe9e70276a54a336a90356f82855964d0e27176bb34745dd871295394bf
[INFO] running `Command { std: "docker" "start" "-a" "aebf9fe9e70276a54a336a90356f82855964d0e27176bb34745dd871295394bf", kill_on_drop: false }`
[INFO] [stderr]  Documenting tuple_utils v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:45:27
[INFO] [stdout]     |
[INFO] [stdout] 45  |               type Output = ( $( $from ,)*  T);
[INFO] [stdout]     |                             ^                ^
[INFO] [stdout] ...
[INFO] [stdout] 110 |   for_each_prefix! {
[INFO] [stdout]     |  _-
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |
[INFO] [stdout] 111 | |     tuple_impl,
[INFO] [stdout] 112 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 113 | | }
[INFO] [stdout]     | | -
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |_in this macro invocation
[INFO] [stdout]     |   in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `tuple_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 45  -             type Output = ( $( $from ,)*  T);
[INFO] [stdout] 45  +             type Output =  $( $from ,)*  T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:49:38
[INFO] [stdout]     |
[INFO] [stdout] 49  |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout]     |                                        ^                ^
[INFO] [stdout] ...
[INFO] [stdout] 110 |   for_each_prefix! {
[INFO] [stdout]     |  _-
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |
[INFO] [stdout] 111 | |     tuple_impl,
[INFO] [stdout] 112 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 113 | | }
[INFO] [stdout]     | | -
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |_in this macro invocation
[INFO] [stdout]     |   in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `tuple_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 49  -             fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout] 49  +             fn append(self, x: T) ->  $( $from ,)*  T {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "aebf9fe9e70276a54a336a90356f82855964d0e27176bb34745dd871295394bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aebf9fe9e70276a54a336a90356f82855964d0e27176bb34745dd871295394bf", kill_on_drop: false }`
[INFO] [stdout] aebf9fe9e70276a54a336a90356f82855964d0e27176bb34745dd871295394bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8d01928bcf3e6a4726b4dad6ed4927082cdb4cd0a4fcba47d2abb2c26e78957e
[INFO] running `Command { std: "docker" "start" "-a" "8d01928bcf3e6a4726b4dad6ed4927082cdb4cd0a4fcba47d2abb2c26e78957e", kill_on_drop: false }`
[INFO] [stderr]  Documenting tuple_utils v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:45:27
[INFO] [stdout]     |
[INFO] [stdout] 45  |               type Output = ( $( $from ,)*  T);
[INFO] [stdout]     |                             ^                ^
[INFO] [stdout] ...
[INFO] [stdout] 110 |   for_each_prefix! {
[INFO] [stdout]     |  _-
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |
[INFO] [stdout] 111 | |     tuple_impl,
[INFO] [stdout] 112 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 113 | | }
[INFO] [stdout]     | | -
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |_in this macro invocation
[INFO] [stdout]     |   in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `tuple_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 45  -             type Output = ( $( $from ,)*  T);
[INFO] [stdout] 45  +             type Output =  $( $from ,)*  T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:49:38
[INFO] [stdout]     |
[INFO] [stdout] 49  |               fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout]     |                                        ^                ^
[INFO] [stdout] ...
[INFO] [stdout] 110 |   for_each_prefix! {
[INFO] [stdout]     |  _-
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |
[INFO] [stdout] 111 | |     tuple_impl,
[INFO] [stdout] 112 | |     [(T0), (T1), (T2), (T3), (T4), (T5), (T6), (T7), (T8), (T9), (T10), (T11), (T12), (T13), (T14), (T15),]
[INFO] [stdout] 113 | | }
[INFO] [stdout]     | | -
[INFO] [stdout]     | |_|
[INFO] [stdout]     | |_in this macro invocation
[INFO] [stdout]     |   in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `tuple_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 49  -             fn append(self, x: T) -> ( $( $from ,)*  T) {
[INFO] [stdout] 49  +             fn append(self, x: T) ->  $( $from ,)*  T {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "8d01928bcf3e6a4726b4dad6ed4927082cdb4cd0a4fcba47d2abb2c26e78957e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d01928bcf3e6a4726b4dad6ed4927082cdb4cd0a4fcba47d2abb2c26e78957e", kill_on_drop: false }`
[INFO] [stdout] 8d01928bcf3e6a4726b4dad6ed4927082cdb4cd0a4fcba47d2abb2c26e78957e