[INFO] fetching crate next-gen 0.1.1...
[INFO] checking next-gen-0.1.1 against try#48c9d93cf65d550d124c40108859fd993778c157 for pr-153692-1
[INFO] extracting crate next-gen 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate next-gen 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate next-gen 0.1.1
[INFO] tweaked toml for crates.io crate next-gen 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate next-gen 0.1.1 on toolchain 48c9d93cf65d550d124c40108859fd993778c157
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate next-gen 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba6f5e1a4071af3f5f17479ff8ba4d14e347fc8855ca80a607262d66f61f52ab
[INFO] running `Command { std: "docker" "start" "-a" "ba6f5e1a4071af3f5f17479ff8ba4d14e347fc8855ca80a607262d66f61f52ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba6f5e1a4071af3f5f17479ff8ba4d14e347fc8855ca80a607262d66f61f52ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6f5e1a4071af3f5f17479ff8ba4d14e347fc8855ca80a607262d66f61f52ab", kill_on_drop: false }`
[INFO] [stdout] ba6f5e1a4071af3f5f17479ff8ba4d14e347fc8855ca80a607262d66f61f52ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+48c9d93cf65d550d124c40108859fd993778c157" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cde7bbb583885e5e7b305c4210064f44e4276847f40fedef95d95bddbd134f67
[INFO] running `Command { std: "docker" "start" "-a" "cde7bbb583885e5e7b305c4210064f44e4276847f40fedef95d95bddbd134f67", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking unwind_safe v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling next-gen-proc_macros v0.1.1
[INFO] [stderr]     Checking next-gen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `{
[INFO] [stdout]              // ::{
[INFO] [stdout]              //     next_gen_proc_macros::generator,
[INFO] [stdout]              // },
[INFO] [stdout]              // self::{
[INFO] [stdout]              //     // coroutine::*,
[INFO] [stdout]              //     // generator::*,
[INFO] [stdout]              //     // ops::{Generator, GeneratorState},
[INFO] [stdout]              // },
[INFO] [stdout]          }`
[INFO] [stdout]   --> src/lib.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |   pub use {
[INFO] [stdout]    |  _________^
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `{
[INFO] [stdout]              // ::{
[INFO] [stdout]              //     next_gen_proc_macros::generator,
[INFO] [stdout]              // },
[INFO] [stdout]              // self::{
[INFO] [stdout]              //     // coroutine::*,
[INFO] [stdout]              //     // generator::*,
[INFO] [stdout]              //     // ops::{Generator, GeneratorState},
[INFO] [stdout]              // },
[INFO] [stdout]          }`
[INFO] [stdout]   --> src/lib.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |   pub use {
[INFO] [stdout]    |  _________^
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/generator_fn.rs:108:15
[INFO] [stdout]     |
[INFO] [stdout] 108 |         self: &'_ YieldSlot<'yield_slot, YieldedItem, ResumeArg>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[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 #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout]     = note: `#[deny(self_lifetime_elision_not_applicable)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/generator_fn.rs:108:15
[INFO] [stdout]     |
[INFO] [stdout] 108 |         self: &'_ YieldSlot<'yield_slot, YieldedItem, ResumeArg>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[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 #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout]     = note: `#[deny(self_lifetime_elision_not_applicable)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/generator_fn.rs:315:23
[INFO] [stdout]     |
[INFO] [stdout] 315 |     fn project (self: Pin<&'_ mut GeneratorFn<YieldedItem, F, ResumeArg>>)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[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 #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/generator_fn.rs:315:23
[INFO] [stdout]     |
[INFO] [stdout] 315 |     fn project (self: Pin<&'_ mut GeneratorFn<YieldedItem, F, ResumeArg>>)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[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 #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/public_macros.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | /             /// # Safety
[INFO] [stdout] 31 | |             ///
[INFO] [stdout] 32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout] 33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout] 34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout] 35 |               extern {}
[INFO] [stdout]    |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |       mk_gen!(let generator = generator());
[INFO] [stdout]    |       ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/public_macros.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             extern {}
[INFO] [stdout]    |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     mk_gen!(let generator = generator());
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/public_macros.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | /             /// # Safety
[INFO] [stdout] 31 | |             ///
[INFO] [stdout] 32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout] 33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout] 34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout] 35 |               extern {}
[INFO] [stdout]    |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |       mk_gen!(let mut generator = generator());
[INFO] [stdout]    |       ---------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/public_macros.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             extern {}
[INFO] [stdout]    |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     mk_gen!(let mut generator = generator());
[INFO] [stdout]    |     ---------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/public_macros.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | /             /// # Safety
[INFO] [stdout] 31 | |             ///
[INFO] [stdout] 32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout] 33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout] 34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout] 35 |               extern {}
[INFO] [stdout]    |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |       mk_gen!(let generator = range(2, 8));
[INFO] [stdout]    |       ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/public_macros.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             extern {}
[INFO] [stdout]    |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/tests.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     mk_gen!(let generator = range(2, 8));
[INFO] [stdout]    |     ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |           mk_gen!(let mut generator = generator());
[INFO] [stdout]     |           ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         mk_gen!(let mut generator = generator());
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |           mk_gen!(let generator = range(2, 8));
[INFO] [stdout]     |           ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         mk_gen!(let generator = range(2, 8));
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:169:19
[INFO] [stdout]     |
[INFO] [stdout] 169 |           let ret = gen_iter!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 170 | |             for question in answer() {
[INFO] [stdout] 171 | |                 assert_eq!(
[INFO] [stdout] 172 | |                     question,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `gen_iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:169:19
[INFO] [stdout]     |
[INFO] [stdout] 169 |           let ret = gen_iter!(
[INFO] [stdout]     |  ___________________-
[INFO] [stdout] 170 | |             for question in answer() {
[INFO] [stdout] 171 | |                 assert_eq!(
[INFO] [stdout] 172 | |                     question,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `gen_iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |               mk_gen!(let iterator = range(2, 7));
[INFO] [stdout]     |               ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |             mk_gen!(let iterator = range(2, 7));
[INFO] [stdout]     |             ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |               mk_gen!(let iterator = filter(|x| x % 2 == 0, iterator));
[INFO] [stdout]     |               -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |             mk_gen!(let iterator = filter(|x| x % 2 == 0, iterator));
[INFO] [stdout]     |             -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |               mk_gen!(let iterator = range(2, 7));
[INFO] [stdout]     |               ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |             mk_gen!(let iterator = range(2, 7));
[INFO] [stdout]     |             ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |               mk_gen!(let iterator = filter(|x| x % 2 == 0, iterator));
[INFO] [stdout]     |               -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |             mk_gen!(let iterator = filter(|x| x % 2 == 0, iterator));
[INFO] [stdout]     |             -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/public_macros.rs:30:13
[INFO] [stdout]     |
[INFO] [stdout]  30 | /             /// # Safety
[INFO] [stdout]  31 | |             ///
[INFO] [stdout]  32 | |             ///   - This is pin_utils' `pin_mut!` macro: the shadowing ensures
[INFO] [stdout]  33 | |             ///     there is no longer access to the original stack variable,
[INFO] [stdout]  34 | |             ///     which is thus impossible to move or forget.
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]  35 |               extern {}
[INFO] [stdout]     |               --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |               mk_gen!(let iterator = map(|x| x * x, iterator));
[INFO] [stdout]     |               ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/public_macros.rs:35:13
[INFO] [stdout]     |
[INFO] [stdout]  35 |             extern {}
[INFO] [stdout]     |             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |             mk_gen!(let iterator = map(|x| x * x, iterator));
[INFO] [stdout]     |             ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::stack_pinned` which comes from the expansion of the macro `mk_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter type does not contain `Self`
[INFO] [stdout]    --> src/tests.rs:262:33
[INFO] [stdout]     |
[INFO] [stdout] 262 |             fn countdown (self: &'_ CountdownFrom)
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `&self`, `&mut self`, or `self: &Self` for correct lifetime elision
[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 #140611 <https://github.com/rust-lang/rust/issues/140611>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `next-gen` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `next-gen` (lib test) due to 3 previous errors; 23 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cde7bbb583885e5e7b305c4210064f44e4276847f40fedef95d95bddbd134f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cde7bbb583885e5e7b305c4210064f44e4276847f40fedef95d95bddbd134f67", kill_on_drop: false }`
[INFO] [stdout] cde7bbb583885e5e7b305c4210064f44e4276847f40fedef95d95bddbd134f67
