[INFO] fetching crate unsegen 0.3.0...
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] crate unsegen 0.3.0 is already in cache
[INFO] checking unsegen-0.3.0 against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043
[INFO] extracting crate unsegen 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate unsegen 0.3.0 on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsegen 0.3.0
[INFO] finished tweaking crates.io crate unsegen 0.3.0
[INFO] tweaked toml for crates.io crate unsegen 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded raw_tty v0.1.0
[INFO] [stderr]   Downloaded smallvec v0.3.4
[INFO] [stderr]   Downloaded ndarray v0.8.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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] b730cf51b126a419d2e36eda82c75d485fdb9e1c6a4c57696327c8738f11eb5f
[INFO] running `Command { std: "docker" "start" "-a" "b730cf51b126a419d2e36eda82c75d485fdb9e1c6a4c57696327c8738f11eb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b730cf51b126a419d2e36eda82c75d485fdb9e1c6a4c57696327c8738f11eb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b730cf51b126a419d2e36eda82c75d485fdb9e1c6a4c57696327c8738f11eb5f", kill_on_drop: false }`
[INFO] [stdout] b730cf51b126a419d2e36eda82c75d485fdb9e1c6a4c57696327c8738f11eb5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] da62662041951216d9db6fd5be82eef478f62cc608c27a55768391b709d91a3e
[INFO] running `Command { std: "docker" "start" "-a" "da62662041951216d9db6fd5be82eef478f62cc608c27a55768391b709d91a3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling ndarray v0.8.4
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]     Checking raw_tty v0.1.0
[INFO] [stderr]     Checking unsegen v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.13s
[INFO] running `Command { std: "docker" "inspect" "da62662041951216d9db6fd5be82eef478f62cc608c27a55768391b709d91a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da62662041951216d9db6fd5be82eef478f62cc608c27a55768391b709d91a3e", kill_on_drop: false }`
[INFO] [stdout] da62662041951216d9db6fd5be82eef478f62cc608c27a55768391b709d91a3e