[INFO] fetching crate thinnable 0.3.3...
[INFO] documenting thinnable-0.3.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate thinnable 0.3.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate thinnable 0.3.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thinnable 0.3.3
[INFO] finished tweaking crates.io crate thinnable 0.3.3
[INFO] tweaked toml for crates.io crate thinnable 0.3.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ca375d1721452d78137f75f7036ab15e9cbadbc810c062d085ffa42a5ee038a
[INFO] running `Command { std: "docker" "start" "-a" "3ca375d1721452d78137f75f7036ab15e9cbadbc810c062d085ffa42a5ee038a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ca375d1721452d78137f75f7036ab15e9cbadbc810c062d085ffa42a5ee038a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca375d1721452d78137f75f7036ab15e9cbadbc810c062d085ffa42a5ee038a", kill_on_drop: false }`
[INFO] [stdout] 3ca375d1721452d78137f75f7036ab15e9cbadbc810c062d085ffa42a5ee038a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fe981be1d988c061c0ccb628a8c6942075ef95ceab1352422e4521e79e68881
[INFO] running `Command { std: "docker" "start" "-a" "0fe981be1d988c061c0ccb628a8c6942075ef95ceab1352422e4521e79e68881", kill_on_drop: false }`
[INFO] [stderr]  Documenting thinnable v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(any(feature = "fn-refs", doc), feature(fn_traits, unboxed_closures))]
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(doc_cfg, ptr_metadata, unsize)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> src/thin_refs/mod.rs:11:48
[INFO] [stdout]     |
[INFO] [stdout] 11  |           impl<$($($tlt,)*)? U, M $($(, $tg)*)?> $trait$(::$trait2)*$(<$($tlt,)* $($tg),*>)? for $ref<'_, U, M>
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/thin_refs/thin_mut.rs:47:1
[INFO] [stdout]     |
[INFO] [stdout] 47  | / delegate! {
[INFO] [stdout] 48  | |     for ThinMut {
[INFO] [stdout] 49  | |         #[cfg(any(feature = "fn-refs", doc))]
[INFO] [stdout] 50  | |         #[doc(cfg(feature = "fn-refs"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |     }
[INFO] [stdout] 111 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:163:1
[INFO] [stdout]     = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 14  |             M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> src/thin_refs/thin_mut.rs:127:18
[INFO] [stdout]     |
[INFO] [stdout] 127 | impl<Args, U, M> FnOnce<Args> for ThinMut<'_, U, M>
[INFO] [stdout]     |                  ^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:242:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]     |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> src/thin_refs/mod.rs:13:25
[INFO] [stdout]     |
[INFO] [stdout] 13  |               U: ?Sized + $trait$(::$trait2)*$(<$($tlt,)* $($tg),*>)?,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/thin_refs/thin_mut.rs:47:1
[INFO] [stdout]     |
[INFO] [stdout] 47  | / delegate! {
[INFO] [stdout] 48  | |     for ThinMut {
[INFO] [stdout] 49  | |         #[cfg(any(feature = "fn-refs", doc))]
[INFO] [stdout] 50  | |         #[doc(cfg(feature = "fn-refs"))]
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |     }
[INFO] [stdout] 111 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:163:1
[INFO] [stdout]     = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 14  |             M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]     |                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> src/thin_refs/thin_mut.rs:132:19
[INFO] [stdout]     |
[INFO] [stdout] 132 |     type Output = U::Output;
[INFO] [stdout]     |                   ^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:242:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]     |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> src/thin_refs/thin_mut.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |     U: ?Sized + FnMut<Args>,
[INFO] [stdout]     |                 ^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout]    --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:163:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 130 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]     |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/thin_ref.rs:38:18
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<Args, U, M> FnMut<Args> for ThinRef<'_, U, M>
[INFO] [stdout]    |                  ^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:163:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/thin_ref.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<Args, U, M> FnOnce<Args> for ThinRef<'_, U, M>
[INFO] [stdout]    |                  ^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:242:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/mod.rs:11:48
[INFO] [stdout]    |
[INFO] [stdout] 11 |           impl<$($($tlt,)*)? U, M $($(, $tg)*)?> $trait$(::$trait2)*$(<$($tlt,)* $($tg),*>)? for $ref<'_, U, M>
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/thin_refs/thin_ref.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | / delegate! {
[INFO] [stdout] 64 | |     for ThinRef {
[INFO] [stdout] 65 | |         #[cfg(any(feature = "fn-refs", doc))]
[INFO] [stdout] 66 | |         #[doc(cfg(feature = "fn-refs"))]
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |     }
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:76:1
[INFO] [stdout]    = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 14 |             M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/thin_ref.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     U: ?Sized + Fn<Args>,
[INFO] [stdout]    |                 ^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:76:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/thin_ref.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |     type Output = U::Output;
[INFO] [stdout]    |                   ^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:242:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/thin_ref.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     U: ?Sized + Fn<Args>,
[INFO] [stdout]    |                 ^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:76:1
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]   --> src/thin_refs/mod.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |               U: ?Sized + $trait$(::$trait2)*$(<$($tlt,)* $($tg),*>)?,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `Args`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/thin_refs/thin_ref.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | / delegate! {
[INFO] [stdout] 64 | |     for ThinRef {
[INFO] [stdout] 65 | |         #[cfg(any(feature = "fn-refs", doc))]
[INFO] [stdout] 66 | |         #[doc(cfg(feature = "fn-refs"))]
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |     }
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout]   --> /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:76:1
[INFO] [stdout]    = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]    |
[INFO] [stdout] 14 |             M: Copy + TryInto<Metadata<U>>, Args: std::marker::Tuple
[INFO] [stdout]    |                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0059, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0059`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `thinnable`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name thinnable src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2f4cd81036d14d0e -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.3.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0fe981be1d988c061c0ccb628a8c6942075ef95ceab1352422e4521e79e68881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe981be1d988c061c0ccb628a8c6942075ef95ceab1352422e4521e79e68881", kill_on_drop: false }`
[INFO] [stdout] 0fe981be1d988c061c0ccb628a8c6942075ef95ceab1352422e4521e79e68881
