[INFO] fetching crate ckb-pow 0.37.0...
[INFO] checking ckb-pow-0.37.0 against beta for pr-78714
[INFO] extracting crate ckb-pow 0.37.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ckb-pow 0.37.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-pow 0.37.0
[INFO] finished tweaking crates.io crate ckb-pow 0.37.0
[INFO] tweaked toml for crates.io crate ckb-pow 0.37.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3231e34d2e4cd5332cf1764bf0203539c8297c48cd76d2e935d6139763946e5a
[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" "3231e34d2e4cd5332cf1764bf0203539c8297c48cd76d2e935d6139763946e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3231e34d2e4cd5332cf1764bf0203539c8297c48cd76d2e935d6139763946e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3231e34d2e4cd5332cf1764bf0203539c8297c48cd76d2e935d6139763946e5a", kill_on_drop: false }`
[INFO] [stdout] 3231e34d2e4cd5332cf1764bf0203539c8297c48cd76d2e935d6139763946e5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e98ba9eb22b012a81cf171d53c0031fc91eaa3444bf390189cebb7bc41b27878
[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" "e98ba9eb22b012a81cf171d53c0031fc91eaa3444bf390189cebb7bc41b27878", kill_on_drop: false }`
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking ckb-hash v0.37.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]     Checking ckb-occupied-capacity-core v0.37.0
[INFO] [stderr]     Checking ckb-fixed-hash-core v0.37.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking molecule v0.6.0
[INFO] [stderr]    Compiling ckb-occupied-capacity-macros v0.37.0
[INFO] [stderr]    Compiling ckb-fixed-hash-macros v0.37.0
[INFO] [stderr]     Checking ckb-occupied-capacity v0.37.0
[INFO] [stderr]     Checking ckb-error v0.37.0
[INFO] [stderr]     Checking ckb-fixed-hash v0.37.0
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.6
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.6
[INFO] [stderr]     Checking numext-fixed-uint v0.1.6
[INFO] [stderr]     Checking ckb-rational v0.37.0
[INFO] [stderr]     Checking ckb-types v0.37.0
[INFO] [stderr]     Checking ckb-pow v0.37.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "e98ba9eb22b012a81cf171d53c0031fc91eaa3444bf390189cebb7bc41b27878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e98ba9eb22b012a81cf171d53c0031fc91eaa3444bf390189cebb7bc41b27878", kill_on_drop: false }`
[INFO] [stdout] e98ba9eb22b012a81cf171d53c0031fc91eaa3444bf390189cebb7bc41b27878