[INFO] cloning repository https://github.com/kyp44/extension-trait-gat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyp44/extension-trait-gat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyp44%2Fextension-trait-gat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyp44%2Fextension-trait-gat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 050ba8051890c5140858de982e064d7bf6d71e7c [INFO] testing kyp44/extension-trait-gat against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyp44%2Fextension-trait-gat" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kyp44/extension-trait-gat [INFO] finished tweaking git repo https://github.com/kyp44/extension-trait-gat [INFO] tweaked toml for git repo https://github.com/kyp44/extension-trait-gat written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kyp44/extension-trait-gat on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kyp44/extension-trait-gat 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded gat-lending-iterator v0.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fef654863ed355bc14ff4e63c18cfb19dbd8b31ff79970d7737806ded0e941ae [INFO] running `Command { std: "docker" "start" "-a" "fef654863ed355bc14ff4e63c18cfb19dbd8b31ff79970d7737806ded0e941ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fef654863ed355bc14ff4e63c18cfb19dbd8b31ff79970d7737806ded0e941ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fef654863ed355bc14ff4e63c18cfb19dbd8b31ff79970d7737806ded0e941ae", kill_on_drop: false }` [INFO] [stdout] fef654863ed355bc14ff4e63c18cfb19dbd8b31ff79970d7737806ded0e941ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] cf78f69d04cd8f1be3f7e45cca8302cee2e7f11046e6037bd02b3515e87d0cb2 [INFO] running `Command { std: "docker" "start" "-a" "cf78f69d04cd8f1be3f7e45cca8302cee2e7f11046e6037bd02b3515e87d0cb2", kill_on_drop: false }` [INFO] [stderr] Compiling gat-lending-iterator v0.1.5 [INFO] [stderr] Compiling extension-trait-gat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: expected a `FnMut(&::Item<'a>)` closure, found `P` [INFO] [stdout] --> src/main.rs:26:21 [INFO] [stdout] | [INFO] [stdout] 26 | self.filter(f).count(); [INFO] [stdout] | ------ ^ the trait `for<'b, 'a> FnMut(&'b ::Item<'a>)` is not implemented for `P` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = note: the trait bound `for<'b, 'a> P: FnMut(&'b ::Item<'a>)` is not satisfied [INFO] [stdout] note: required by a bound in `gat_lending_iterator::LendingIterator::filter` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gat-lending-iterator-0.1.5/src/traits/lending_iterator.rs:160:12 [INFO] [stdout] | [INFO] [stdout] 157 | fn filter

(self, predicate: P) -> Filter [INFO] [stdout] | ------ required by a bound in this associated function [INFO] [stdout] ... [INFO] [stdout] 160 | P: for<'a> FnMut(&Self::Item<'a>) -> bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `LendingIterator::filter` [INFO] [stdout] help: consider mutably borrowing here [INFO] [stdout] | [INFO] [stdout] 26 | self.filter(&mut f).count(); [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `count` exists for struct `gat_lending_iterator::Filter`, but its trait bounds were not satisfied [INFO] [stdout] --> src/main.rs:26:24 [INFO] [stdout] | [INFO] [stdout] 26 | self.filter(f).count(); [INFO] [stdout] | ^^^^^ method cannot be called on `gat_lending_iterator::Filter` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gat-lending-iterator-0.1.5/src/adapters/filter.rs:11:1 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Filter { [INFO] [stdout] | ----------------------- doesn't satisfy `_: LendingIterator` or `gat_lending_iterator::Filter: Iterator` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] `

::Item<'a>,)>>::Output = bool` [INFO] [stdout] which is required by `gat_lending_iterator::Filter: LendingIterator` [INFO] [stdout] `P: FnMut<(&::Item<'a>,)>` [INFO] [stdout] which is required by `gat_lending_iterator::Filter: LendingIterator` [INFO] [stdout] `gat_lending_iterator::Filter: Iterator` [INFO] [stdout] which is required by `&mut gat_lending_iterator::Filter: Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:22:39 [INFO] [stdout] | [INFO] [stdout] 22 | fn filter_count

(self, f: P) -> usize [INFO] [stdout] | ------------ ^^^^^ expected `usize`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `extension-trait-gat` (bin "extension-trait-gat") due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "cf78f69d04cd8f1be3f7e45cca8302cee2e7f11046e6037bd02b3515e87d0cb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf78f69d04cd8f1be3f7e45cca8302cee2e7f11046e6037bd02b3515e87d0cb2", kill_on_drop: false }` [INFO] [stdout] cf78f69d04cd8f1be3f7e45cca8302cee2e7f11046e6037bd02b3515e87d0cb2