[INFO] fetching crate linregress 0.4.4...
[INFO] checking linregress-0.4.4 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate linregress 0.4.4 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate linregress 0.4.4 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linregress 0.4.4
[INFO] finished tweaking crates.io crate linregress 0.4.4
[INFO] tweaked toml for crates.io crate linregress 0.4.4 written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded statrs v0.15.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded rand_distr v0.4.2
[INFO] [stderr]   Downloaded rawpointer v0.2.1
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded approx v0.5.0
[INFO] [stderr]   Downloaded nalgebra v0.27.1
[INFO] [stderr]   Downloaded quickcheck v0.8.5
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] [stderr]   Downloaded simba v0.5.1
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded paste v1.0.6
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded stdtr v0.2.0
[INFO] [stderr]   Downloaded stdtr-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fed11ff797460e0b3db0fc37867d7068a0e41eea7d8452ba623f2426a74e5e6
[INFO] running `Command { std: "docker" "start" "-a" "6fed11ff797460e0b3db0fc37867d7068a0e41eea7d8452ba623f2426a74e5e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fed11ff797460e0b3db0fc37867d7068a0e41eea7d8452ba623f2426a74e5e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fed11ff797460e0b3db0fc37867d7068a0e41eea7d8452ba623f2426a74e5e6", kill_on_drop: false }`
[INFO] [stdout] 6fed11ff797460e0b3db0fc37867d7068a0e41eea7d8452ba623f2426a74e5e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2671dc3f8ef35371b42f4cbdbdaed8f38db961701e57df1b40d76ca0c5970c34
[INFO] running `Command { std: "docker" "start" "-a" "2671dc3f8ef35371b42f4cbdbdaed8f38db961701e57df1b40d76ca0c5970c34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling stdtr-sys v0.1.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking rand_distr v0.4.2
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.27.1
[INFO] [stderr]     Checking stdtr v0.2.0
[INFO] [stderr]     Checking statrs v0.15.0
[INFO] [stderr]     Checking linregress v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.01s
[INFO] running `Command { std: "docker" "inspect" "2671dc3f8ef35371b42f4cbdbdaed8f38db961701e57df1b40d76ca0c5970c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2671dc3f8ef35371b42f4cbdbdaed8f38db961701e57df1b40d76ca0c5970c34", kill_on_drop: false }`
[INFO] [stdout] 2671dc3f8ef35371b42f4cbdbdaed8f38db961701e57df1b40d76ca0c5970c34