[INFO] fetching crate akd 0.2.0...
[INFO] testing akd-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate akd 0.2.0 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate akd 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate akd 0.2.0
[INFO] finished tweaking crates.io crate akd 0.2.0
[INFO] tweaked toml for crates.io crate akd 0.2.0 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate akd 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9e5f5c4f69b77fc60e4f4fd9363402e8f22ea86bf667f1fafdf0d5981fcccbc
[INFO] running `Command { std: "docker" "start" "-a" "d9e5f5c4f69b77fc60e4f4fd9363402e8f22ea86bf667f1fafdf0d5981fcccbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9e5f5c4f69b77fc60e4f4fd9363402e8f22ea86bf667f1fafdf0d5981fcccbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e5f5c4f69b77fc60e4f4fd9363402e8f22ea86bf667f1fafdf0d5981fcccbc", kill_on_drop: false }`
[INFO] [stdout] d9e5f5c4f69b77fc60e4f4fd9363402e8f22ea86bf667f1fafdf0d5981fcccbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13002b39048cb73cf899888808898db05dbf042390002509470f408fc277e9c1
[INFO] running `Command { std: "docker" "start" "-a" "13002b39048cb73cf899888808898db05dbf042390002509470f408fc277e9c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling frunk_core v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling funty v1.2.0
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling winter-utils v0.1.0
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling saturating v0.1.0
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling hashbag v0.1.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling libloading v0.7.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling pem v0.8.3
[INFO] [stderr]    Compiling tinyvec v1.5.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr] error: could not compile `num-bigint`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.3/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=ad3b6ca17431963d -C extra-filename=-ad3b6ca17431963d --out-dir /opt/rustwide/target/debug/build/num-bigint-ad3b6ca17431963d -L dependency=/opt/rustwide/target/debug/deps --extern autocfg=/opt/rustwide/target/debug/deps/libautocfg-cea8f49e72b83951.rlib --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "13002b39048cb73cf899888808898db05dbf042390002509470f408fc277e9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13002b39048cb73cf899888808898db05dbf042390002509470f408fc277e9c1", kill_on_drop: false }`
[INFO] [stdout] 13002b39048cb73cf899888808898db05dbf042390002509470f408fc277e9c1