[INFO] fetching crate stochastic 0.5.2...
[INFO] checking stochastic-0.5.2 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate stochastic 0.5.2 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate stochastic 0.5.2 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stochastic 0.5.2
[INFO] finished tweaking crates.io crate stochastic 0.5.2
[INFO] tweaked toml for crates.io crate stochastic 0.5.2 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded probability v0.15.12
[INFO] [stderr]   Downloaded dft v0.5.5
[INFO] [stderr]   Downloaded czt v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f533e2add19c2ae380229af62a8be7ff74c28c7ce5892c6a7aeba19d6937186e
[INFO] running `Command { std: "docker" "start" "-a" "f533e2add19c2ae380229af62a8be7ff74c28c7ce5892c6a7aeba19d6937186e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f533e2add19c2ae380229af62a8be7ff74c28c7ce5892c6a7aeba19d6937186e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f533e2add19c2ae380229af62a8be7ff74c28c7ce5892c6a7aeba19d6937186e", kill_on_drop: false }`
[INFO] [stdout] f533e2add19c2ae380229af62a8be7ff74c28c7ce5892c6a7aeba19d6937186e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c14d1ee59317fb26ef81623ee17b87a5ae825529137953be81debf3e87a5e1
[INFO] running `Command { std: "docker" "start" "-a" "91c14d1ee59317fb26ef81623ee17b87a5ae825529137953be81debf3e87a5e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking assert v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking dft v0.5.5
[INFO] [stderr]     Checking czt v0.3.7
[INFO] [stderr]     Checking stochastic v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cov(&self, Self::Index, Self::Index) -> f64;
[INFO] [stdout]    |                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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/lib.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cov(&self, Self::Index, Self::Index) -> f64;
[INFO] [stdout]    |                                ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Index`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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/lib.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cov(&self, Self::Distance) -> f64;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Distance`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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/lib.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cov(&self, Self::Index, Self::Index) -> f64;
[INFO] [stdout]    |                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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/lib.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cov(&self, Self::Index, Self::Index) -> f64;
[INFO] [stdout]    |                                ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Index`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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/lib.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cov(&self, Self::Distance) -> f64;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Distance`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.50s
[INFO] running `Command { std: "docker" "inspect" "91c14d1ee59317fb26ef81623ee17b87a5ae825529137953be81debf3e87a5e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c14d1ee59317fb26ef81623ee17b87a5ae825529137953be81debf3e87a5e1", kill_on_drop: false }`
[INFO] [stdout] 91c14d1ee59317fb26ef81623ee17b87a5ae825529137953be81debf3e87a5e1