[INFO] fetching crate metasolver 0.0.1...
[INFO] testing metasolver-0.0.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate metasolver 0.0.1 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate metasolver 0.0.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metasolver 0.0.1
[INFO] finished tweaking crates.io crate metasolver 0.0.1
[INFO] tweaked toml for crates.io crate metasolver 0.0.1 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15435cd5298d7bea866bb7a4d13f8a588d1807ee94acca6d01bd885c690b7b6b
[INFO] running `Command { std: "docker" "start" "-a" "15435cd5298d7bea866bb7a4d13f8a588d1807ee94acca6d01bd885c690b7b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15435cd5298d7bea866bb7a4d13f8a588d1807ee94acca6d01bd885c690b7b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15435cd5298d7bea866bb7a4d13f8a588d1807ee94acca6d01bd885c690b7b6b", kill_on_drop: false }`
[INFO] [stdout] 15435cd5298d7bea866bb7a4d13f8a588d1807ee94acca6d01bd885c690b7b6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d4178acbe3c88e04f77da58d35b395e20ab9fab0574be2368dca9490d9de72d
[INFO] running `Command { std: "docker" "start" "-a" "0d4178acbe3c88e04f77da58d35b395e20ab9fab0574be2368dca9490d9de72d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling metasolver v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn apply_neighbour(&mut self, Self::Neighbour);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn neighbour_fitness(&self, &Self::Neighbour) -> f32;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn update(self, &T) -> Self;
[INFO] [stdout]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "0d4178acbe3c88e04f77da58d35b395e20ab9fab0574be2368dca9490d9de72d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d4178acbe3c88e04f77da58d35b395e20ab9fab0574be2368dca9490d9de72d", kill_on_drop: false }`
[INFO] [stdout] 0d4178acbe3c88e04f77da58d35b395e20ab9fab0574be2368dca9490d9de72d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cbd38b4e6056dcaa162874503dd0c09f6062920283102b27c4fc5ede141f882
[INFO] running `Command { std: "docker" "start" "-a" "7cbd38b4e6056dcaa162874503dd0c09f6062920283102b27c4fc5ede141f882", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn apply_neighbour(&mut self, Self::Neighbour);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn neighbour_fitness(&self, &Self::Neighbour) -> f32;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn update(self, &T) -> Self;
[INFO] [stdout]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metasolver v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `solution_formula` should have an upper camel case name
[INFO] [stdout]   --> examples/simulated_annealing_formula.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct solution_formula {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `SolutionFormula`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn apply_neighbour(&mut self, Self::Neighbour);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn neighbour_fitness(&self, &Self::Neighbour) -> f32;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Neighbour`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn update(self, &T) -> Self;
[INFO] [stdout]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "7cbd38b4e6056dcaa162874503dd0c09f6062920283102b27c4fc5ede141f882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbd38b4e6056dcaa162874503dd0c09f6062920283102b27c4fc5ede141f882", kill_on_drop: false }`
[INFO] [stdout] 7cbd38b4e6056dcaa162874503dd0c09f6062920283102b27c4fc5ede141f882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c0df2dbe3175dae2165ce2cb1ca9777ba4d4473c0c7c91f113037af2fd3257f
[INFO] running `Command { std: "docker" "start" "-a" "0c0df2dbe3175dae2165ce2cb1ca9777ba4d4473c0c7c91f113037af2fd3257f", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn apply_neighbour(&mut self, Self::Neighbour);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Neighbour`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn neighbour_fitness(&self, &Self::Neighbour) -> f32;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Neighbour`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:49:21
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn update(self, &T) -> Self;
[INFO] [stderr]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn apply_neighbour(&mut self, Self::Neighbour);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Neighbour`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn neighbour_fitness(&self, &Self::Neighbour) -> f32;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Neighbour`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:49:21
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn update(self, &T) -> Self;
[INFO] [stderr]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: type `solution_formula` should have an upper camel case name
[INFO] [stderr]   --> examples/simulated_annealing_formula.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct solution_formula {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `SolutionFormula`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metasolver-8d9dbbf5674df6bd)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metasolver
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c0df2dbe3175dae2165ce2cb1ca9777ba4d4473c0c7c91f113037af2fd3257f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0df2dbe3175dae2165ce2cb1ca9777ba4d4473c0c7c91f113037af2fd3257f", kill_on_drop: false }`
[INFO] [stdout] 0c0df2dbe3175dae2165ce2cb1ca9777ba4d4473c0c7c91f113037af2fd3257f
