[INFO] fetching crate ckb-pow 0.43.0...
[INFO] checking ckb-pow-0.43.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate ckb-pow 0.43.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ckb-pow 0.43.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-pow 0.43.0
[INFO] finished tweaking crates.io crate ckb-pow 0.43.0
[INFO] tweaked toml for crates.io crate ckb-pow 0.43.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5be179f869d091aaad90916cf3df050f1a348041be67faad6b65a62a356d13c2
[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" "5be179f869d091aaad90916cf3df050f1a348041be67faad6b65a62a356d13c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5be179f869d091aaad90916cf3df050f1a348041be67faad6b65a62a356d13c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be179f869d091aaad90916cf3df050f1a348041be67faad6b65a62a356d13c2", kill_on_drop: false }`
[INFO] [stdout] 5be179f869d091aaad90916cf3df050f1a348041be67faad6b65a62a356d13c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 109d2db5ed187bbece0b8db8f3f6e9d085a85e150f4574a697441f15c99aad82
[INFO] running `Command { std: "docker" "start" "-a" "109d2db5ed187bbece0b8db8f3f6e9d085a85e150f4574a697441f15c99aad82", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]     Checking ckb-hash v0.43.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling ckb-occupied-capacity-core v0.43.0
[INFO] [stderr]    Compiling ckb-fixed-hash-core v0.43.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.6
[INFO] [stderr]    Compiling ckb-occupied-capacity-macros v0.43.0
[INFO] [stderr]    Compiling ckb-fixed-hash-macros v0.43.0
[INFO] [stderr]     Checking molecule v0.7.1
[INFO] [stderr]     Checking ckb-occupied-capacity v0.43.0
[INFO] [stderr]     Checking ckb-error v0.43.0
[INFO] [stderr]     Checking ckb-fixed-hash v0.43.0
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.6
[INFO] [stderr]     Checking numext-fixed-uint v0.1.6
[INFO] [stderr]     Checking ckb-rational v0.43.0
[INFO] [stderr]     Checking ckb-types v0.43.0
[INFO] [stderr]     Checking ckb-pow v0.43.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.09s
[INFO] running `Command { std: "docker" "inspect" "109d2db5ed187bbece0b8db8f3f6e9d085a85e150f4574a697441f15c99aad82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109d2db5ed187bbece0b8db8f3f6e9d085a85e150f4574a697441f15c99aad82", kill_on_drop: false }`
[INFO] [stdout] 109d2db5ed187bbece0b8db8f3f6e9d085a85e150f4574a697441f15c99aad82