[INFO] fetching crate witchcraft-log 0.3.0...
[INFO] checking witchcraft-log-0.3.0 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate witchcraft-log 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate witchcraft-log 0.3.0 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witchcraft-log 0.3.0
[INFO] finished tweaking crates.io crate witchcraft-log 0.3.0
[INFO] tweaked toml for crates.io crate witchcraft-log 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbb18be1d8f6a964bc42aee0ff70a4ad99ddc0825ba485a0658b39f5ee39ee72
[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" "bbb18be1d8f6a964bc42aee0ff70a4ad99ddc0825ba485a0658b39f5ee39ee72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbb18be1d8f6a964bc42aee0ff70a4ad99ddc0825ba485a0658b39f5ee39ee72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb18be1d8f6a964bc42aee0ff70a4ad99ddc0825ba485a0658b39f5ee39ee72", kill_on_drop: false }`
[INFO] [stdout] bbb18be1d8f6a964bc42aee0ff70a4ad99ddc0825ba485a0658b39f5ee39ee72
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90cf01e3b7ec8a007391aac535928fe06215fe7d5a57b24f2087978c1ff09416
[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" "90cf01e3b7ec8a007391aac535928fe06215fe7d5a57b24f2087978c1ff09416", kill_on_drop: false }`
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking miniz_oxide v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_test v1.0.116
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking conjure-object v0.7.2
[INFO] [stderr]     Checking conjure-error v0.7.2
[INFO] [stderr]     Checking witchcraft-log v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.62s
[INFO] running `Command { std: "docker" "inspect" "90cf01e3b7ec8a007391aac535928fe06215fe7d5a57b24f2087978c1ff09416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90cf01e3b7ec8a007391aac535928fe06215fe7d5a57b24f2087978c1ff09416", kill_on_drop: false }`
[INFO] [stdout] 90cf01e3b7ec8a007391aac535928fe06215fe7d5a57b24f2087978c1ff09416