[INFO] fetching crate matfile-ndarray 0.2.0...
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] crate matfile-ndarray 0.2.0 is already in cache
[INFO] checking matfile-ndarray-0.2.0 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate matfile-ndarray 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate matfile-ndarray 0.2.0 on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matfile-ndarray 0.2.0
[INFO] finished tweaking crates.io crate matfile-ndarray 0.2.0
[INFO] tweaked toml for crates.io crate matfile-ndarray 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate matfile-ndarray 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "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 ndarray v0.13.0
[INFO] [stderr]   Downloaded matfile v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6076d0438a259c931b50b5a15590b541c9416f33e17116132b8ab47e91c62e87
[INFO] running `Command { std: "docker" "start" "-a" "6076d0438a259c931b50b5a15590b541c9416f33e17116132b8ab47e91c62e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6076d0438a259c931b50b5a15590b541c9416f33e17116132b8ab47e91c62e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6076d0438a259c931b50b5a15590b541c9416f33e17116132b8ab47e91c62e87", kill_on_drop: false }`
[INFO] [stdout] 6076d0438a259c931b50b5a15590b541c9416f33e17116132b8ab47e91c62e87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab17ef92cf9a66ec407beaeb129598e704793a53d72d9d783a1ea5c940dba53d
[INFO] running `Command { std: "docker" "start" "-a" "ab17ef92cf9a66ec407beaeb129598e704793a53d72d9d783a1ea5c940dba53d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]     Checking matfile v0.2.0
[INFO] [stderr]     Checking matfile-ndarray v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "ab17ef92cf9a66ec407beaeb129598e704793a53d72d9d783a1ea5c940dba53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab17ef92cf9a66ec407beaeb129598e704793a53d72d9d783a1ea5c940dba53d", kill_on_drop: false }`
[INFO] [stdout] ab17ef92cf9a66ec407beaeb129598e704793a53d72d9d783a1ea5c940dba53d