[INFO] fetching crate white_rabbit 0.1.1...
[INFO] checking white_rabbit-0.1.1 against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] extracting crate white_rabbit 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate white_rabbit 0.1.1 on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate white_rabbit 0.1.1
[INFO] finished tweaking crates.io crate white_rabbit 0.1.1
[INFO] tweaked toml for crates.io crate white_rabbit 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb19e8b03672a7df232f4490eb15dbd39f1fdd145f6263ae3589aca4724ff4e3
[INFO] running `Command { std: "docker" "start" "-a" "fb19e8b03672a7df232f4490eb15dbd39f1fdd145f6263ae3589aca4724ff4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb19e8b03672a7df232f4490eb15dbd39f1fdd145f6263ae3589aca4724ff4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb19e8b03672a7df232f4490eb15dbd39f1fdd145f6263ae3589aca4724ff4e3", kill_on_drop: false }`
[INFO] [stdout] fb19e8b03672a7df232f4490eb15dbd39f1fdd145f6263ae3589aca4724ff4e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8968eeaa4efd9a86432463213c4ab1c25ea6ced3a4f61fddc40a373cfcd361d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e8968eeaa4efd9a86432463213c4ab1c25ea6ced3a4f61fddc40a373cfcd361d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]    Compiling error-chain v0.12.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]     Checking skeptic v0.13.4
[INFO] [stderr]    Compiling white_rabbit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "e8968eeaa4efd9a86432463213c4ab1c25ea6ced3a4f61fddc40a373cfcd361d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8968eeaa4efd9a86432463213c4ab1c25ea6ced3a4f61fddc40a373cfcd361d", kill_on_drop: false }`
[INFO] [stdout] e8968eeaa4efd9a86432463213c4ab1c25ea6ced3a4f61fddc40a373cfcd361d