[INFO] fetching crate ckb-multisig 0.37.0...
[INFO] checking ckb-multisig-0.37.0 against beta for pr-78714
[INFO] extracting crate ckb-multisig 0.37.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ckb-multisig 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-multisig 0.37.0
[INFO] finished tweaking crates.io crate ckb-multisig 0.37.0
[INFO] tweaked toml for crates.io crate ckb-multisig 0.37.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 95c00f13ee3dc9d3d60c889c4df30acd63029c9e3cd692509c85a454159c1eb2
[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" "95c00f13ee3dc9d3d60c889c4df30acd63029c9e3cd692509c85a454159c1eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95c00f13ee3dc9d3d60c889c4df30acd63029c9e3cd692509c85a454159c1eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c00f13ee3dc9d3d60c889c4df30acd63029c9e3cd692509c85a454159c1eb2", kill_on_drop: false }`
[INFO] [stdout] 95c00f13ee3dc9d3d60c889c4df30acd63029c9e3cd692509c85a454159c1eb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b249a2167a16f0b7b70ff922bccf607c03e35fbf081da28d1d6d8e7178c5eb31
[INFO] running `Command { std: "docker" "start" "-a" "b249a2167a16f0b7b70ff922bccf607c03e35fbf081da28d1d6d8e7178c5eb31", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking ckb-logger v0.37.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking ckb-fixed-hash-core v0.37.0
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]    Compiling ckb-fixed-hash-macros v0.37.0
[INFO] [stderr]     Checking ckb-fixed-hash v0.37.0
[INFO] [stderr]     Checking ckb-crypto v0.37.0
[INFO] [stderr]     Checking ckb-multisig v0.37.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]   --> src/secp256k1.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     use rand::{thread_rng, Rng};
[INFO] [stdout]    |         ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-multisig`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b249a2167a16f0b7b70ff922bccf607c03e35fbf081da28d1d6d8e7178c5eb31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b249a2167a16f0b7b70ff922bccf607c03e35fbf081da28d1d6d8e7178c5eb31", kill_on_drop: false }`
[INFO] [stdout] b249a2167a16f0b7b70ff922bccf607c03e35fbf081da28d1d6d8e7178c5eb31