[INFO] fetching crate optimization_tools 0.1.0...
[INFO] checking optimization_tools-0.1.0 against try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] extracting crate optimization_tools 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate optimization_tools 0.1.0
[INFO] finished tweaking crates.io crate optimization_tools 0.1.0
[INFO] tweaked toml for crates.io crate optimization_tools 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate optimization_tools 0.1.0 on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate optimization_tools 0.1.0 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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d6497116950d1d18e405036b0c4cb261fd7b3071276d937c1bd88e109ad8840
[INFO] running `Command { std: "docker" "start" "-a" "6d6497116950d1d18e405036b0c4cb261fd7b3071276d937c1bd88e109ad8840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d6497116950d1d18e405036b0c4cb261fd7b3071276d937c1bd88e109ad8840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6497116950d1d18e405036b0c4cb261fd7b3071276d937c1bd88e109ad8840", kill_on_drop: false }`
[INFO] [stdout] 6d6497116950d1d18e405036b0c4cb261fd7b3071276d937c1bd88e109ad8840
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab887f7d2e7642dbd1ba2384862a834ed58bb043886cd802329d42c9406a5a80
[INFO] running `Command { std: "docker" "start" "-a" "ab887f7d2e7642dbd1ba2384862a834ed58bb043886cd802329d42c9406a5a80", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
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[INFO] [stderr]     Checking parse-display v0.8.2
[INFO] [stderr]     Checking statrs v0.16.0
[INFO] [stderr]     Checking optimization_tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:261:30
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:261:30
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.59s
[INFO] running `Command { std: "docker" "inspect" "ab887f7d2e7642dbd1ba2384862a834ed58bb043886cd802329d42c9406a5a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab887f7d2e7642dbd1ba2384862a834ed58bb043886cd802329d42c9406a5a80", kill_on_drop: false }`
[INFO] [stdout] ab887f7d2e7642dbd1ba2384862a834ed58bb043886cd802329d42c9406a5a80
