[INFO] fetching crate magicsquare 0.2.0...
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] crate magicsquare 0.2.0 is already in cache
[INFO] checking magicsquare-0.2.0 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate magicsquare 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate magicsquare 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 magicsquare 0.2.0
[INFO] finished tweaking crates.io crate magicsquare 0.2.0
[INFO] tweaked toml for crates.io crate magicsquare 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate magicsquare 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-csv v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 2e341f625c7061e17336d3dd732c9343881169495b5e6b5863baf19832a514a9
[INFO] running `Command { std: "docker" "start" "-a" "2e341f625c7061e17336d3dd732c9343881169495b5e6b5863baf19832a514a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e341f625c7061e17336d3dd732c9343881169495b5e6b5863baf19832a514a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e341f625c7061e17336d3dd732c9343881169495b5e6b5863baf19832a514a9", kill_on_drop: false }`
[INFO] [stdout] 2e341f625c7061e17336d3dd732c9343881169495b5e6b5863baf19832a514a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e8e296cfb3155bb8fa936bc922cc274de31b20e2b4f89dc8766b983ce08c7d2f
[INFO] running `Command { std: "docker" "start" "-a" "e8e296cfb3155bb8fa936bc922cc274de31b20e2b4f89dc8766b983ce08c7d2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking ndarray-csv v0.5.1
[INFO] [stderr]     Checking magicsquare v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.64s
[INFO] running `Command { std: "docker" "inspect" "e8e296cfb3155bb8fa936bc922cc274de31b20e2b4f89dc8766b983ce08c7d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e296cfb3155bb8fa936bc922cc274de31b20e2b4f89dc8766b983ce08c7d2f", kill_on_drop: false }`
[INFO] [stdout] e8e296cfb3155bb8fa936bc922cc274de31b20e2b4f89dc8766b983ce08c7d2f