[INFO] fetching crate differential-evolution 0.2.2...
[INFO] testing differential-evolution-0.2.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate differential-evolution 0.2.2 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate differential-evolution 0.2.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate differential-evolution 0.2.2
[INFO] finished tweaking crates.io crate differential-evolution 0.2.2
[INFO] tweaked toml for crates.io crate differential-evolution 0.2.2 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ba612dec4d2dc22976ee8f7be264508971f9f7e275bda90c87974e09507bb37
[INFO] running `Command { std: "docker" "start" "-a" "5ba612dec4d2dc22976ee8f7be264508971f9f7e275bda90c87974e09507bb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ba612dec4d2dc22976ee8f7be264508971f9f7e275bda90c87974e09507bb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba612dec4d2dc22976ee8f7be264508971f9f7e275bda90c87974e09507bb37", kill_on_drop: false }`
[INFO] [stdout] 5ba612dec4d2dc22976ee8f7be264508971f9f7e275bda90c87974e09507bb37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9a5afdbe5d2c007f9d0c6ef1111aeef6b09dd8635243cd0a42e037dc2adb77d
[INFO] running `Command { std: "docker" "start" "-a" "d9a5afdbe5d2c007f9d0c6ef1111aeef6b09dd8635243cd0a42e037dc2adb77d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling differential-evolution v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "d9a5afdbe5d2c007f9d0c6ef1111aeef6b09dd8635243cd0a42e037dc2adb77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9a5afdbe5d2c007f9d0c6ef1111aeef6b09dd8635243cd0a42e037dc2adb77d", kill_on_drop: false }`
[INFO] [stdout] d9a5afdbe5d2c007f9d0c6ef1111aeef6b09dd8635243cd0a42e037dc2adb77d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dddcfaf7e56212f3cb76764b0164010e033d79a1b37653b6dd017cb69e10044d
[INFO] running `Command { std: "docker" "start" "-a" "dddcfaf7e56212f3cb76764b0164010e033d79a1b37653b6dd017cb69e10044d", kill_on_drop: false }`
[INFO] [stderr]    Compiling differential-evolution v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "dddcfaf7e56212f3cb76764b0164010e033d79a1b37653b6dd017cb69e10044d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddcfaf7e56212f3cb76764b0164010e033d79a1b37653b6dd017cb69e10044d", kill_on_drop: false }`
[INFO] [stdout] dddcfaf7e56212f3cb76764b0164010e033d79a1b37653b6dd017cb69e10044d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc6f2bccb02041fc16c77b66a1076e7a19ebabe0dc2257ec125c292f2dc14afd
[INFO] running `Command { std: "docker" "start" "-a" "bc6f2bccb02041fc16c77b66a1076e7a19ebabe0dc2257ec125c292f2dc14afd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/differential_evolution-615c9561d3640627)
[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] [stderr]    Doc-tests differential-evolution
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 75) ... ok
[INFO] [stdout] test src/lib.rs - (line 87) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 128) ... ok
[INFO] [stdout] test src/lib.rs - (line 105) ... ok
[INFO] [stdout] test src/lib.rs - (line 116) ... ok
[INFO] [stdout] test src/lib.rs - (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc6f2bccb02041fc16c77b66a1076e7a19ebabe0dc2257ec125c292f2dc14afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6f2bccb02041fc16c77b66a1076e7a19ebabe0dc2257ec125c292f2dc14afd", kill_on_drop: false }`
[INFO] [stdout] bc6f2bccb02041fc16c77b66a1076e7a19ebabe0dc2257ec125c292f2dc14afd