[INFO] fetching crate ckb-multisig 0.43.0...
[INFO] checking ckb-multisig-0.43.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate ckb-multisig 0.43.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ckb-multisig 0.43.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-multisig 0.43.0
[INFO] finished tweaking crates.io crate ckb-multisig 0.43.0
[INFO] tweaked toml for crates.io crate ckb-multisig 0.43.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95c10e3fa87ea830d9e4518d445d840ca792c8082555d70439f809dabb890f45
[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" "95c10e3fa87ea830d9e4518d445d840ca792c8082555d70439f809dabb890f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95c10e3fa87ea830d9e4518d445d840ca792c8082555d70439f809dabb890f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c10e3fa87ea830d9e4518d445d840ca792c8082555d70439f809dabb890f45", kill_on_drop: false }`
[INFO] [stdout] 95c10e3fa87ea830d9e4518d445d840ca792c8082555d70439f809dabb890f45
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dab992a60bbf5460573507cd5518aca67f32525823bb411960772a392afc5f6e
[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" "dab992a60bbf5460573507cd5518aca67f32525823bb411960772a392afc5f6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]     Checking ckb-fixed-hash-core v0.43.0
[INFO] [stderr]     Checking ckb-occupied-capacity-core v0.43.0
[INFO] [stderr]    Compiling ckb-occupied-capacity-macros v0.43.0
[INFO] [stderr]    Compiling ckb-fixed-hash-macros v0.43.0
[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]     Checking ckb-crypto v0.43.0
[INFO] [stderr]     Checking ckb-multisig v0.43.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]   --> src/secp256k1.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dab992a60bbf5460573507cd5518aca67f32525823bb411960772a392afc5f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab992a60bbf5460573507cd5518aca67f32525823bb411960772a392afc5f6e", kill_on_drop: false }`
[INFO] [stdout] dab992a60bbf5460573507cd5518aca67f32525823bb411960772a392afc5f6e