[INFO] fetching crate rubble 0.0.4...
[INFO] checking rubble-0.0.4 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate rubble 0.0.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rubble 0.0.4 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rubble 0.0.4
[INFO] finished tweaking crates.io crate rubble 0.0.4
[INFO] tweaked toml for crates.io crate rubble 0.0.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f9b9d50035f6b3d93b9a38e170fc8028a7571bb230e1763dc0288b48377cca7
[INFO] running `Command { std: "docker" "start" "-a" "8f9b9d50035f6b3d93b9a38e170fc8028a7571bb230e1763dc0288b48377cca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f9b9d50035f6b3d93b9a38e170fc8028a7571bb230e1763dc0288b48377cca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f9b9d50035f6b3d93b9a38e170fc8028a7571bb230e1763dc0288b48377cca7", kill_on_drop: false }`
[INFO] [stdout] 8f9b9d50035f6b3d93b9a38e170fc8028a7571bb230e1763dc0288b48377cca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b97d43595698ed2582b28520ffda692de9cf6c99e06c9b142192b0597dc10180
[INFO] running `Command { std: "docker" "start" "-a" "b97d43595698ed2582b28520ffda692de9cf6c99e06c9b142192b0597dc10180", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking ff v0.10.0
[INFO] [stderr]     Checking group v0.10.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking crypto-bigint v0.2.2
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking elliptic-curve v0.10.5
[INFO] [stderr]     Checking p256 v0.9.0
[INFO] [stderr]     Checking rubble v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.13s
[INFO] running `Command { std: "docker" "inspect" "b97d43595698ed2582b28520ffda692de9cf6c99e06c9b142192b0597dc10180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97d43595698ed2582b28520ffda692de9cf6c99e06c9b142192b0597dc10180", kill_on_drop: false }`
[INFO] [stdout] b97d43595698ed2582b28520ffda692de9cf6c99e06c9b142192b0597dc10180