[INFO] fetching crate velvet-core 0.4.2...
[INFO] testing velvet-core-0.4.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate velvet-core 0.4.2 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate velvet-core 0.4.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate velvet-core 0.4.2
[INFO] finished tweaking crates.io crate velvet-core 0.4.2
[INFO] tweaked toml for crates.io crate velvet-core 0.4.2 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii v1.0.0
[INFO] [stderr]   Downloaded ndarray v0.14.0
[INFO] [stderr]   Downloaded hdf5-derive v0.7.1
[INFO] [stderr]   Downloaded hdf5 v0.7.1
[INFO] [stderr]   Downloaded hdf5-types v0.7.1
[INFO] [stderr]   Downloaded hdf5-sys v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae2312caa2f7d7c86484854f79ac34110172cd41295367e3c6579c32b1389bb5
[INFO] running `Command { std: "docker" "start" "-a" "ae2312caa2f7d7c86484854f79ac34110172cd41295367e3c6579c32b1389bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae2312caa2f7d7c86484854f79ac34110172cd41295367e3c6579c32b1389bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae2312caa2f7d7c86484854f79ac34110172cd41295367e3c6579c32b1389bb5", kill_on_drop: false }`
[INFO] [stdout] ae2312caa2f7d7c86484854f79ac34110172cd41295367e3c6579c32b1389bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c13726f41ddc5e8683236ec586660289418f30611bf4659f345ab141f6556e8
[INFO] running `Command { std: "docker" "start" "-a" "4c13726f41ddc5e8683236ec586660289418f30611bf4659f345ab141f6556e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling simba v0.3.1
[INFO] [stderr]    Compiling typetag v0.1.7
[INFO] [stderr]    Compiling nalgebra v0.23.2
[INFO] [stderr]    Compiling velvet-core v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.43s
[INFO] running `Command { std: "docker" "inspect" "4c13726f41ddc5e8683236ec586660289418f30611bf4659f345ab141f6556e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c13726f41ddc5e8683236ec586660289418f30611bf4659f345ab141f6556e8", kill_on_drop: false }`
[INFO] [stdout] 4c13726f41ddc5e8683236ec586660289418f30611bf4659f345ab141f6556e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 834035c1065cb59b0e70af1661068d350604a64284751537b94aa0bb711c36c3
[INFO] running `Command { std: "docker" "start" "-a" "834035c1065cb59b0e70af1661068d350604a64284751537b94aa0bb711c36c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling velvet-core v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.41s
[INFO] running `Command { std: "docker" "inspect" "834035c1065cb59b0e70af1661068d350604a64284751537b94aa0bb711c36c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834035c1065cb59b0e70af1661068d350604a64284751537b94aa0bb711c36c3", kill_on_drop: false }`
[INFO] [stdout] 834035c1065cb59b0e70af1661068d350604a64284751537b94aa0bb711c36c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7343fa4e943f5f98a59ac3573decf8d6c30d02da59801ccaf867698e39572cfe
[INFO] running `Command { std: "docker" "start" "-a" "7343fa4e943f5f98a59ac3573decf8d6c30d02da59801ccaf867698e39572cfe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/velvet_core-a63ddddb9f64e446)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test potentials::pair::tests::harmonic ... ok
[INFO] [stdout] test potentials::pair::tests::lennard_jones ... ok
[INFO] [stdout] test potentials::pair::tests::mie ... ok
[INFO] [stdout] test potentials::pair::tests::morse ... ok
[INFO] [stdout] test system::cell::tests::distance ... ok
[INFO] [stdout] test system::cell::tests::fractional_cartesian ... ok
[INFO] [stdout] test system::cell::tests::vector_image ... ok
[INFO] [stdout] test system::elements::tests::from_str ... ok
[INFO] [stdout] test system::cell::tests::angle ... ok
[INFO] [stdout] test system::cell::tests::new ... ok
[INFO] [stdout] test system::cell::tests::dihedral ... ok
[INFO] [stdout] test system::cell::tests::wrap_vector ... ok
[INFO] [stdout] test system::cell::tests::direction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests velvet-core
[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" "7343fa4e943f5f98a59ac3573decf8d6c30d02da59801ccaf867698e39572cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7343fa4e943f5f98a59ac3573decf8d6c30d02da59801ccaf867698e39572cfe", kill_on_drop: false }`
[INFO] [stdout] 7343fa4e943f5f98a59ac3573decf8d6c30d02da59801ccaf867698e39572cfe