[INFO] cloning repository https://github.com/scottbuckley/rustoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottbuckley/rustoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottbuckley%2Frustoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottbuckley%2Frustoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07178cd7f077d0eaecb73b7234a7ae0573c68563
[INFO] fixing scottbuckley/rustoku against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottbuckley%2Frustoku" "/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/scottbuckley/rustoku
[INFO] finished tweaking git repo https://github.com/scottbuckley/rustoku
[INFO] tweaked toml for git repo https://github.com/scottbuckley/rustoku written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scottbuckley/rustoku on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scottbuckley/rustoku 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75
[INFO] running `Command { std: "docker" "start" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking regex-syntax v0.8.9
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking rustoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/solve.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::globals::{self, *};
[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: `self`
[INFO] [stdout]  --> src/solve.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::globals::{self, *};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solve.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn next_delta(&mut self) -> Option<StratDelta> {
[INFO] [stdout]    |                                     ------------------ expected `Option<solve::StratDelta>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 60 | /         for delta in self.find_more_deltas() {
[INFO] [stdout] 61 | |           self.next_deltas.push_back(delta);
[INFO] [stdout] 62 | |         }
[INFO] [stdout]    | |_________^ expected `Option<StratDelta>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Option<solve::StratDelta>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout]    = note: `for` loops evaluate to unit type `()`
[INFO] [stdout] help: try adding an expression at the end of the block
[INFO] [stdout]    |
[INFO] [stdout] 62 ~         }
[INFO] [stdout] 63 +         None
[INFO] [stdout]    |
[INFO] [stdout] 62 ~         }
[INFO] [stdout] 63 +         Some(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solve.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 |   pub fn find_more_deltas(&mut self) -> Vec<StratDelta> {
[INFO] [stdout]    |          ----------------               ^^^^^^^^^^^^^^^ expected `Vec<StratDelta>`, found `()`
[INFO] [stdout]    |          |
[INFO] [stdout]    |          implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<solve::StratDelta>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solve.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn next_delta(&mut self) -> Option<StratDelta> {
[INFO] [stdout]    |                                     ------------------ expected `Option<solve::StratDelta>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 60 | /         for delta in self.find_more_deltas() {
[INFO] [stdout] 61 | |           self.next_deltas.push_back(delta);
[INFO] [stdout] 62 | |         }
[INFO] [stdout]    | |_________^ expected `Option<StratDelta>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Option<solve::StratDelta>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout]    = note: `for` loops evaluate to unit type `()`
[INFO] [stdout] help: try adding an expression at the end of the block
[INFO] [stdout]    |
[INFO] [stdout] 62 ~         }
[INFO] [stdout] 63 +         None
[INFO] [stdout]    |
[INFO] [stdout] 62 ~         }
[INFO] [stdout] 63 +         Some(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/solve.rs:68:41
[INFO] [stdout]    |
[INFO] [stdout] 68 |   pub fn find_more_deltas(&mut self) -> Vec<StratDelta> {
[INFO] [stdout]    |          ----------------               ^^^^^^^^^^^^^^^ expected `Vec<StratDelta>`, found `()`
[INFO] [stdout]    |          |
[INFO] [stdout]    |          implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<solve::StratDelta>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustoku` (bin "rustoku" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustoku` (bin "rustoku") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75", kill_on_drop: false }`
[INFO] [stdout] f7575c4b6bc057fb1bf801de5dfc362b1be2ebe5bb265c5e23545018be5ccb75
