[INFO] fetching crate ckb-traits 0.37.0-pre...
[INFO] checking ckb-traits-0.37.0-pre against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate ckb-traits 0.37.0-pre into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ckb-traits 0.37.0-pre on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-traits 0.37.0-pre
[INFO] finished tweaking crates.io crate ckb-traits 0.37.0-pre
[INFO] tweaked toml for crates.io crate ckb-traits 0.37.0-pre written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] aaf2c00a1cf6a991871ffa8c4d9265127f39a5e0e38bc516f064a6c07d06a891
[INFO] running `Command { std: "docker" "start" "-a" "aaf2c00a1cf6a991871ffa8c4d9265127f39a5e0e38bc516f064a6c07d06a891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaf2c00a1cf6a991871ffa8c4d9265127f39a5e0e38bc516f064a6c07d06a891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf2c00a1cf6a991871ffa8c4d9265127f39a5e0e38bc516f064a6c07d06a891", kill_on_drop: false }`
[INFO] [stdout] aaf2c00a1cf6a991871ffa8c4d9265127f39a5e0e38bc516f064a6c07d06a891
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d0556a29e862e13a1b4ad2eacf47dab63562b339cbf0204d5eacec8d5504768
[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" "1d0556a29e862e13a1b4ad2eacf47dab63562b339cbf0204d5eacec8d5504768", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking merkle-cbt v0.3.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking ckb-channel v0.37.0-pre
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]     Checking ckb-hash v0.37.0-pre
[INFO] [stderr]    Compiling enum-display-derive v0.1.0
[INFO] [stderr]    Compiling numext-constructor v0.1.4
[INFO] [stderr]     Checking ckb-occupied-capacity-core v0.37.0-pre
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking ckb-fixed-hash-core v0.37.0-pre
[INFO] [stderr]     Checking molecule v0.6.0
[INFO] [stderr]    Compiling ckb-occupied-capacity-macros v0.37.0-pre
[INFO] [stderr]    Compiling ckb-fixed-hash-macros v0.37.0-pre
[INFO] [stderr]     Checking ckb-occupied-capacity v0.37.0-pre
[INFO] [stderr]     Checking ckb-error v0.37.0-pre
[INFO] [stderr]     Checking ckb-fixed-hash v0.37.0-pre
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.4
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.4
[INFO] [stderr]     Checking numext-fixed-uint v0.1.4
[INFO] [stderr]     Checking ckb-rational v0.37.0-pre
[INFO] [stderr]     Checking ckb-types v0.37.0-pre
[INFO] [stderr]     Checking ckb-traits v0.37.0-pre (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `Command { std: "docker" "inspect" "1d0556a29e862e13a1b4ad2eacf47dab63562b339cbf0204d5eacec8d5504768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0556a29e862e13a1b4ad2eacf47dab63562b339cbf0204d5eacec8d5504768", kill_on_drop: false }`
[INFO] [stdout] 1d0556a29e862e13a1b4ad2eacf47dab63562b339cbf0204d5eacec8d5504768