[INFO] fetching crate numopt 0.2.1...
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] crate numopt 0.2.1 is already in cache
[INFO] checking numopt-0.2.1 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate numopt 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate numopt 0.2.1 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 numopt 0.2.1
[INFO] finished tweaking crates.io crate numopt 0.2.1
[INFO] tweaked toml for crates.io crate numopt 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] [stderr]   Downloaded serial_test v0.4.0
[INFO] [stderr]   Downloaded serial_test_derive v0.4.0
[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] 8f40e29331bf597aa9f32e3cb1ee02ecfb4da4446d7a76e19ea9bad8627e5779
[INFO] running `Command { std: "docker" "start" "-a" "8f40e29331bf597aa9f32e3cb1ee02ecfb4da4446d7a76e19ea9bad8627e5779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f40e29331bf597aa9f32e3cb1ee02ecfb4da4446d7a76e19ea9bad8627e5779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f40e29331bf597aa9f32e3cb1ee02ecfb4da4446d7a76e19ea9bad8627e5779", kill_on_drop: false }`
[INFO] [stdout] 8f40e29331bf597aa9f32e3cb1ee02ecfb4da4446d7a76e19ea9bad8627e5779
[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] 52f5d94bb339ba4c9563d2eceadfa3f0e0782ada55160876abe86cb4d8692984
[INFO] running `Command { std: "docker" "start" "-a" "52f5d94bb339ba4c9563d2eceadfa3f0e0782ada55160876abe86cb4d8692984", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling serial_test_derive v0.4.0
[INFO] [stderr]     Checking serial_test v0.4.0
[INFO] [stderr]     Checking numopt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.32s
[INFO] running `Command { std: "docker" "inspect" "52f5d94bb339ba4c9563d2eceadfa3f0e0782ada55160876abe86cb4d8692984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f5d94bb339ba4c9563d2eceadfa3f0e0782ada55160876abe86cb4d8692984", kill_on_drop: false }`
[INFO] [stdout] 52f5d94bb339ba4c9563d2eceadfa3f0e0782ada55160876abe86cb4d8692984