[INFO] fetching crate findminhs 2.1.0...
[INFO] checking findminhs-2.1.0 against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] extracting crate findminhs 2.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate findminhs 2.1.0
[INFO] finished tweaking crates.io crate findminhs 2.1.0
[INFO] tweaked toml for crates.io crate findminhs 2.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate findminhs 2.1.0 on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate findminhs 2.1.0 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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35d8f189bf280cddccc1176127b5ab3704d52980db4700d52aac06db1ece9c36
[INFO] running `Command { std: "docker" "start" "-a" "35d8f189bf280cddccc1176127b5ab3704d52980db4700d52aac06db1ece9c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35d8f189bf280cddccc1176127b5ab3704d52980db4700d52aac06db1ece9c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d8f189bf280cddccc1176127b5ab3704d52980db4700d52aac06db1ece9c36", kill_on_drop: false }`
[INFO] [stdout] 35d8f189bf280cddccc1176127b5ab3704d52980db4700d52aac06db1ece9c36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Zstrict-projection-item-bounds" "-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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9de71f742623305f6554174f42724230ecc6859d71bd86823df253f3a7e224a
[INFO] running `Command { std: "docker" "start" "-a" "e9de71f742623305f6554174f42724230ecc6859d71bd86823df253f3a7e224a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.80
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking findminhs v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]    --> src/lower_bound.rs:267:10
[INFO] [stdout]     |
[INFO] [stdout] 267 |     ) -> Self {
[INFO] [stdout]     |          ^^^^ cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SetMinusIterator`
[INFO] [stdout]    --> src/lower_bound.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct SetMinusIterator<T, I1, I2>(Peekable<I1>, Peekable<I2>)
[INFO] [stdout]     |        ---------------- required by a bound in this struct
[INFO] [stdout] 255 | where
[INFO] [stdout] 256 |     I1: Iterator<Item = T>,
[INFO] [stdout]     |                  ^^^^^^^^ required by this bound in `SetMinusIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]    --> src/lower_bound.rs:267:10
[INFO] [stdout]     |
[INFO] [stdout] 267 |     ) -> Self {
[INFO] [stdout]     |          ^^^^ cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SetMinusIterator`
[INFO] [stdout]    --> src/lower_bound.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct SetMinusIterator<T, I1, I2>(Peekable<I1>, Peekable<I2>)
[INFO] [stdout]     |        ---------------- required by a bound in this struct
[INFO] [stdout] 255 | where
[INFO] [stdout] 256 |     I1: Iterator<Item = T>,
[INFO] [stdout]     |                  ^^^^^^^^ required by this bound in `SetMinusIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]    --> src/data_structures/subset_trie.rs:100:45
[INFO] [stdout]     |
[INFO] [stdout] 100 |             while let Some(edge_val) = iter.next() {
[INFO] [stdout]     |                                             ^^^^ cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]    --> src/data_structures/superset_trie.rs:100:27
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let result = self.contains_superset_with_stack(set.into_iter(), &mut stack);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SupersetTrie::<V, I>::contains_superset_with_stack`
[INFO] [stdout]    --> src/data_structures/superset_trie.rs:24:17
[INFO] [stdout]     |
[INFO] [stdout]  24 |     I: Iterator<Item = V> + Clone,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `SupersetTrie::<V, I>::contains_superset_with_stack`
[INFO] [stdout] ...
[INFO] [stdout]  47 |     fn contains_superset_with_stack<'a>(
[INFO] [stdout]     |        ---------------------------- required by a bound in this associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]    --> src/data_structures/subset_trie.rs:100:45
[INFO] [stdout]     |
[INFO] [stdout] 100 |             while let Some(edge_val) = iter.next() {
[INFO] [stdout]     |                                             ^^^^ cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]    --> src/data_structures/superset_trie.rs:100:27
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let result = self.contains_superset_with_stack(set.into_iter(), &mut stack);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<I as Iterator>::Item == V`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SupersetTrie::<V, I>::contains_superset_with_stack`
[INFO] [stdout]    --> src/data_structures/superset_trie.rs:24:17
[INFO] [stdout]     |
[INFO] [stdout]  24 |     I: Iterator<Item = V> + Clone,
[INFO] [stdout]     |                 ^^^^^^^^ required by this bound in `SupersetTrie::<V, I>::contains_superset_with_stack`
[INFO] [stdout] ...
[INFO] [stdout]  47 |     fn contains_superset_with_stack<'a>(
[INFO] [stdout]     |        ---------------------------- required by a bound in this associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]    --> src/lower_bound.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 | /         Self(
[INFO] [stdout] 269 | |             set.into_iter().peekable(),
[INFO] [stdout] 270 | |             removed_set.into_iter().peekable(),
[INFO] [stdout] 271 | |         )
[INFO] [stdout]     | |_________^ cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SetMinusIterator`
[INFO] [stdout]    --> src/lower_bound.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct SetMinusIterator<T, I1, I2>(Peekable<I1>, Peekable<I2>)
[INFO] [stdout]     |        ---------------- required by a bound in this tuple struct
[INFO] [stdout] 255 | where
[INFO] [stdout] 256 |     I1: Iterator<Item = T>,
[INFO] [stdout]     |                  ^^^^^^^^ required by this bound in `SetMinusIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]    --> src/lower_bound.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 | /         Self(
[INFO] [stdout] 269 | |             set.into_iter().peekable(),
[INFO] [stdout] 270 | |             removed_set.into_iter().peekable(),
[INFO] [stdout] 271 | |         )
[INFO] [stdout]     | |_________^ cannot satisfy `<I1 as Iterator>::Item == T`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `SetMinusIterator`
[INFO] [stdout]    --> src/lower_bound.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct SetMinusIterator<T, I1, I2>(Peekable<I1>, Peekable<I2>)
[INFO] [stdout]     |        ---------------- required by a bound in this tuple struct
[INFO] [stdout] 255 | where
[INFO] [stdout] 256 |     I1: Iterator<Item = T>,
[INFO] [stdout]     |                  ^^^^^^^^ required by this bound in `SetMinusIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `findminhs` (bin "findminhs" test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `findminhs` (bin "findminhs") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "e9de71f742623305f6554174f42724230ecc6859d71bd86823df253f3a7e224a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9de71f742623305f6554174f42724230ecc6859d71bd86823df253f3a7e224a", kill_on_drop: false }`
[INFO] [stdout] e9de71f742623305f6554174f42724230ecc6859d71bd86823df253f3a7e224a