[INFO] cloning repository https://github.com/rowanclarke/rs-collapse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rowanclarke/rs-collapse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4594364a041d271ab77afa2e20e8d1179c8e6c20
[INFO] checking rowanclarke/rs-collapse against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rowanclarke/rs-collapse on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rowanclarke/rs-collapse
[INFO] finished tweaking git repo https://github.com/rowanclarke/rs-collapse
[INFO] tweaked toml for git repo https://github.com/rowanclarke/rs-collapse written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rowanclarke/rs-collapse 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 985ed6b3fe65b9bafb246ec6ea9c94486c84e040c848afbb27adcd340aef0b26
[INFO] running `Command { std: "docker" "start" "-a" "985ed6b3fe65b9bafb246ec6ea9c94486c84e040c848afbb27adcd340aef0b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "985ed6b3fe65b9bafb246ec6ea9c94486c84e040c848afbb27adcd340aef0b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "985ed6b3fe65b9bafb246ec6ea9c94486c84e040c848afbb27adcd340aef0b26", kill_on_drop: false }`
[INFO] [stdout] 985ed6b3fe65b9bafb246ec6ea9c94486c84e040c848afbb27adcd340aef0b26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f36bdee8180e9e42b3401a13857d08e871a9a0ee2ed4ad003535d1266cf76577
[INFO] running `Command { std: "docker" "start" "-a" "f36bdee8180e9e42b3401a13857d08e871a9a0ee2ed4ad003535d1266cf76577", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rs-collapse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new` and `add` are never used
[INFO] [stdout]   --> src/iter/filter.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<I: Iterator> AccumulateFilter<I> {
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(iter: I) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn add(&mut self, filter: Rc<dyn Fn(<I as Iterator>::Item) -> bool>) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime may not live long enough
[INFO] [stdout]   --> src/tests/puzzle.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         &self,
[INFO] [stdout]    |         - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout] 88 |         update.into_iter()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: to declare that `impl Iterator<Item = (Box<(dyn Iterator<Item = <puzzle::Solver as Collapse>::Coordinate> + 'static)>, Rc<(dyn Fn(<puzzle::Solver as Collapse>::Item) -> bool + 'static)>)>` captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 78 |     > + '_ {
[INFO] [stdout]    |       ++++
[INFO] [stdout] help: to declare that the trait object captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 75 |             Box<dyn Iterator<Item = Self::Coordinate> + '_>,
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] help: to declare that the trait object captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Rc<dyn Fn(Self::Item) -> bool + '_>,
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime may not live long enough
[INFO] [stdout]   --> src/tests/sudoku.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |           &self,
[INFO] [stdout]    |           - let's call the lifetime of this reference `'1`
[INFO] [stdout] ...
[INFO] [stdout] 88 | /         [
[INFO] [stdout] 89 | |             (row, Rc::clone(&remove)),
[INFO] [stdout] 90 | |             (column, Rc::clone(&remove)),
[INFO] [stdout] 91 | |             (block, Rc::clone(&remove)),
[INFO] [stdout] 92 | |         ]
[INFO] [stdout] 93 | |         .into_iter()
[INFO] [stdout]    | |____________________^ returning this value requires that `'1` must outlive `'static`
[INFO] [stdout]    |
[INFO] [stdout] help: to declare that `impl Iterator<Item = (Box<(dyn Iterator<Item = <sudoku::Solver as Collapse>::Coordinate> + 'static)>, Rc<(dyn Fn(<sudoku::Solver as Collapse>::Item) -> bool + 'static)>)>` captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 83 |     > + '_ {
[INFO] [stdout]    |       ++++
[INFO] [stdout] help: to declare that the trait object captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Box<dyn Iterator<Item = Self::Coordinate> + '_>,
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] help: to declare that the trait object captures data from argument `self`, you can add an explicit `'_` lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 81 |             Rc<dyn Fn(Self::Item) -> bool + '_>,
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-collapse` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f36bdee8180e9e42b3401a13857d08e871a9a0ee2ed4ad003535d1266cf76577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f36bdee8180e9e42b3401a13857d08e871a9a0ee2ed4ad003535d1266cf76577", kill_on_drop: false }`
[INFO] [stdout] f36bdee8180e9e42b3401a13857d08e871a9a0ee2ed4ad003535d1266cf76577