[INFO] fetching crate bls-signatures-rs 0.1.0...
[INFO] checking bls-signatures-rs-0.1.0 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate bls-signatures-rs 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bls-signatures-rs 0.1.0 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bls-signatures-rs 0.1.0
[INFO] finished tweaking crates.io crate bls-signatures-rs 0.1.0
[INFO] tweaked toml for crates.io crate bls-signatures-rs 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bls-signatures-rs 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded witnet-bn v0.4.5
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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] 4f3e6f37ff2db81b484083d10dcb7522ae03fe9163a2070baa50180687fc2681
[INFO] running `Command { std: "docker" "start" "-a" "4f3e6f37ff2db81b484083d10dcb7522ae03fe9163a2070baa50180687fc2681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f3e6f37ff2db81b484083d10dcb7522ae03fe9163a2070baa50180687fc2681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3e6f37ff2db81b484083d10dcb7522ae03fe9163a2070baa50180687fc2681", kill_on_drop: false }`
[INFO] [stdout] 4f3e6f37ff2db81b484083d10dcb7522ae03fe9163a2070baa50180687fc2681
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7cfd48a594b3af24ea0ee411a9c894b76c6cab6c12400e6e44880a65d9b5a27
[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" "e7cfd48a594b3af24ea0ee411a9c894b76c6cab6c12400e6e44880a65d9b5a27", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking witnet-bn v0.4.5
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bls-signatures-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.51s
[INFO] running `Command { std: "docker" "inspect" "e7cfd48a594b3af24ea0ee411a9c894b76c6cab6c12400e6e44880a65d9b5a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7cfd48a594b3af24ea0ee411a9c894b76c6cab6c12400e6e44880a65d9b5a27", kill_on_drop: false }`
[INFO] [stdout] e7cfd48a594b3af24ea0ee411a9c894b76c6cab6c12400e6e44880a65d9b5a27