[INFO] cloning repository https://github.com/dankotov/linfa-stack-overflow-error-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dankotov/linfa-stack-overflow-error-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdankotov%2Flinfa-stack-overflow-error-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdankotov%2Flinfa-stack-overflow-error-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36dc18a0e52ce4b3cc8f6ede6e7c45a48cd622fe
[INFO] checking dankotov/linfa-stack-overflow-error-example against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdankotov%2Flinfa-stack-overflow-error-example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dankotov/linfa-stack-overflow-error-example on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dankotov/linfa-stack-overflow-error-example
[INFO] finished tweaking git repo https://github.com/dankotov/linfa-stack-overflow-error-example
[INFO] tweaked toml for git repo https://github.com/dankotov/linfa-stack-overflow-error-example written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dankotov/linfa-stack-overflow-error-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] [stderr]   Downloaded space v0.12.1
[INFO] [stderr]   Downloaded ndarray-stats v0.5.1
[INFO] [stderr]   Downloaded linfa-linalg v0.1.0
[INFO] [stderr]   Downloaded kdtree v0.6.0
[INFO] [stderr]   Downloaded sprs v0.11.1
[INFO] [stderr]   Downloaded linfa v0.7.0
[INFO] [stderr]   Downloaded rayon v1.9.0
[INFO] [stderr]   Downloaded order-stat v0.1.3
[INFO] [stderr]   Downloaded linfa-nn v0.7.0
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded rand_xoshiro v0.6.0
[INFO] [stderr]   Downloaded linfa-clustering v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86019e060017e38d67bfcb1cb13e8be36acd52a0344f2304a97b789be7c2a468
[INFO] running `Command { std: "docker" "start" "-a" "86019e060017e38d67bfcb1cb13e8be36acd52a0344f2304a97b789be7c2a468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86019e060017e38d67bfcb1cb13e8be36acd52a0344f2304a97b789be7c2a468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86019e060017e38d67bfcb1cb13e8be36acd52a0344f2304a97b789be7c2a468", kill_on_drop: false }`
[INFO] [stdout] 86019e060017e38d67bfcb1cb13e8be36acd52a0344f2304a97b789be7c2a468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b078321fa8bc8a7203da834005a46112881b594663670a0d51f7a801c8ba8d52
[INFO] running `Command { std: "docker" "start" "-a" "b078321fa8bc8a7203da834005a46112881b594663670a0d51f7a801c8ba8d52", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling linfa v0.7.0
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking space v0.12.1
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking kdtree v0.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking sprs v0.11.1
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]     Checking linfa-linalg v0.1.0
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking linfa-nn v0.7.0
[INFO] [stderr]     Checking linfa-clustering v0.7.0
[INFO] [stderr]     Checking linfa-stack-overflow-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.30s
[INFO] running `Command { std: "docker" "inspect" "b078321fa8bc8a7203da834005a46112881b594663670a0d51f7a801c8ba8d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b078321fa8bc8a7203da834005a46112881b594663670a0d51f7a801c8ba8d52", kill_on_drop: false }`
[INFO] [stdout] b078321fa8bc8a7203da834005a46112881b594663670a0d51f7a801c8ba8d52
[INFO] checking dankotov/linfa-stack-overflow-error-example against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdankotov%2Flinfa-stack-overflow-error-example" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dankotov/linfa-stack-overflow-error-example on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dankotov/linfa-stack-overflow-error-example
[INFO] finished tweaking git repo https://github.com/dankotov/linfa-stack-overflow-error-example
[INFO] tweaked toml for git repo https://github.com/dankotov/linfa-stack-overflow-error-example written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dankotov/linfa-stack-overflow-error-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 858ab46e3556b39744dc22c7e2cb703e0f2c9801f1969dad2ee17faf7e1d2db5
[INFO] running `Command { std: "docker" "start" "-a" "858ab46e3556b39744dc22c7e2cb703e0f2c9801f1969dad2ee17faf7e1d2db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "858ab46e3556b39744dc22c7e2cb703e0f2c9801f1969dad2ee17faf7e1d2db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858ab46e3556b39744dc22c7e2cb703e0f2c9801f1969dad2ee17faf7e1d2db5", kill_on_drop: false }`
[INFO] [stdout] 858ab46e3556b39744dc22c7e2cb703e0f2c9801f1969dad2ee17faf7e1d2db5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0ca4681218ce65e64b3d33aaf9fb9778a54666e6ec7a147eaaef978a3f2bfdd
[INFO] running `Command { std: "docker" "start" "-a" "f0ca4681218ce65e64b3d33aaf9fb9778a54666e6ec7a147eaaef978a3f2bfdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling linfa v0.7.0
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking space v0.12.1
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking kdtree v0.6.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking sprs v0.11.1
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking linfa-linalg v0.1.0
[INFO] [stderr]     Checking linfa-nn v0.7.0
[INFO] [stderr]     Checking linfa-clustering v0.7.0
[INFO] [stderr]     Checking linfa-stack-overflow-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.90s
[INFO] running `Command { std: "docker" "inspect" "f0ca4681218ce65e64b3d33aaf9fb9778a54666e6ec7a147eaaef978a3f2bfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ca4681218ce65e64b3d33aaf9fb9778a54666e6ec7a147eaaef978a3f2bfdd", kill_on_drop: false }`
[INFO] [stdout] f0ca4681218ce65e64b3d33aaf9fb9778a54666e6ec7a147eaaef978a3f2bfdd