[INFO] fetching crate amcl_wrapper_ml 0.5.1...
[INFO] checking amcl_wrapper_ml-0.5.1 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate amcl_wrapper_ml 0.5.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate amcl_wrapper_ml 0.5.1 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amcl_wrapper_ml 0.5.1
[INFO] finished tweaking crates.io crate amcl_wrapper_ml 0.5.1
[INFO] tweaked toml for crates.io crate amcl_wrapper_ml 0.5.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db39d3d8b58e453f0860d9c9a3f8e8be376dd2231d682b69fd49698b33b313b3
[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" "db39d3d8b58e453f0860d9c9a3f8e8be376dd2231d682b69fd49698b33b313b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db39d3d8b58e453f0860d9c9a3f8e8be376dd2231d682b69fd49698b33b313b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db39d3d8b58e453f0860d9c9a3f8e8be376dd2231d682b69fd49698b33b313b3", kill_on_drop: false }`
[INFO] [stdout] db39d3d8b58e453f0860d9c9a3f8e8be376dd2231d682b69fd49698b33b313b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5ed7a6c6e9c803a3fea58b9be0ea7cc1c50a8fbd8b27792c2fde24e07f9fabc
[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" "f5ed7a6c6e9c803a3fea58b9be0ea7cc1c50a8fbd8b27792c2fde24e07f9fabc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking amcl-milagro v3.2.6
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking crossbeam-utils v0.8.2
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking rayon-core v1.9.0
[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]     Checking rayon v1.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking hash2curve v0.0.6
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking amcl_wrapper_ml v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.30s
[INFO] running `Command { std: "docker" "inspect" "f5ed7a6c6e9c803a3fea58b9be0ea7cc1c50a8fbd8b27792c2fde24e07f9fabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5ed7a6c6e9c803a3fea58b9be0ea7cc1c50a8fbd8b27792c2fde24e07f9fabc", kill_on_drop: false }`
[INFO] [stdout] f5ed7a6c6e9c803a3fea58b9be0ea7cc1c50a8fbd8b27792c2fde24e07f9fabc