[INFO] cloning repository https://github.com/taku-y/learn-candle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taku-y/learn-candle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-candle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-candle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c165c3f768bb7515face39ba70252371e575f67
[INFO] checking taku-y/learn-candle against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-candle" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taku-y/learn-candle 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/taku-y/learn-candle
[INFO] finished tweaking git repo https://github.com/taku-y/learn-candle
[INFO] tweaked toml for git repo https://github.com/taku-y/learn-candle written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/taku-y/learn-candle 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn-stack v0.9.0
[INFO] [stderr]   Downloaded reborrow v0.5.4
[INFO] [stderr]   Downloaded candle-core v0.2.2
[INFO] [stderr]   Downloaded candle-nn v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5f900272bb745453fd9c5b65f05fcb543c822cfd3fd9558a44b58e0114565c71
[INFO] running `Command { std: "docker" "start" "-a" "5f900272bb745453fd9c5b65f05fcb543c822cfd3fd9558a44b58e0114565c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f900272bb745453fd9c5b65f05fcb543c822cfd3fd9558a44b58e0114565c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f900272bb745453fd9c5b65f05fcb543c822cfd3fd9558a44b58e0114565c71", kill_on_drop: false }`
[INFO] [stdout] 5f900272bb745453fd9c5b65f05fcb543c822cfd3fd9558a44b58e0114565c71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 14dac3a59ae2327e7b07bfb668da7a470616f52efba447a1ce3fba78aff5064b
[INFO] running `Command { std: "docker" "start" "-a" "14dac3a59ae2327e7b07bfb668da7a470616f52efba447a1ce3fba78aff5064b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking reborrow v0.5.4
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking dyn-stack v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking half v2.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]     Checking candle-gemm-common v0.16.0
[INFO] [stderr]     Checking candle-gemm-f32 v0.16.0
[INFO] [stderr]     Checking candle-gemm-f64 v0.16.0
[INFO] [stderr]     Checking candle-gemm-c32 v0.16.0
[INFO] [stderr]     Checking candle-gemm-c64 v0.16.0
[INFO] [stderr]     Checking candle-gemm-f16 v0.16.0
[INFO] [stderr]     Checking candle-gemm v0.16.0
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking safetensors v0.3.3
[INFO] [stderr]     Checking candle-core v0.2.2
[INFO] [stderr]     Checking candle-nn v0.2.2
[INFO] [stderr]     Checking learn-candle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.22s
[INFO] running `Command { std: "docker" "inspect" "14dac3a59ae2327e7b07bfb668da7a470616f52efba447a1ce3fba78aff5064b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14dac3a59ae2327e7b07bfb668da7a470616f52efba447a1ce3fba78aff5064b", kill_on_drop: false }`
[INFO] [stdout] 14dac3a59ae2327e7b07bfb668da7a470616f52efba447a1ce3fba78aff5064b
[INFO] checking taku-y/learn-candle against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-candle" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taku-y/learn-candle on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taku-y/learn-candle
[INFO] finished tweaking git repo https://github.com/taku-y/learn-candle
[INFO] tweaked toml for git repo https://github.com/taku-y/learn-candle written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/taku-y/learn-candle 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41d620fcd57cd05e305e24552a501d748c528bf875d9b1dec1aac0cacbf13d3a
[INFO] running `Command { std: "docker" "start" "-a" "41d620fcd57cd05e305e24552a501d748c528bf875d9b1dec1aac0cacbf13d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41d620fcd57cd05e305e24552a501d748c528bf875d9b1dec1aac0cacbf13d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d620fcd57cd05e305e24552a501d748c528bf875d9b1dec1aac0cacbf13d3a", kill_on_drop: false }`
[INFO] [stdout] 41d620fcd57cd05e305e24552a501d748c528bf875d9b1dec1aac0cacbf13d3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d753fc0e1286b9dff1dbaeec6f659be8c72c15efe9778f615cbdac03316f21d8
[INFO] running `Command { std: "docker" "start" "-a" "d753fc0e1286b9dff1dbaeec6f659be8c72c15efe9778f615cbdac03316f21d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking reborrow v0.5.4
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking dyn-stack v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking half v2.3.1
[INFO] [stderr]     Checking candle-gemm-common v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]     Checking candle-gemm-f32 v0.16.0
[INFO] [stderr]     Checking candle-gemm-f64 v0.16.0
[INFO] [stderr]     Checking candle-gemm-c32 v0.16.0
[INFO] [stderr]     Checking candle-gemm-c64 v0.16.0
[INFO] [stderr]     Checking candle-gemm-f16 v0.16.0
[INFO] [stderr]     Checking candle-gemm v0.16.0
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking safetensors v0.3.3
[INFO] [stderr]     Checking candle-core v0.2.2
[INFO] [stderr]     Checking candle-nn v0.2.2
[INFO] [stderr]     Checking learn-candle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.60s
[INFO] running `Command { std: "docker" "inspect" "d753fc0e1286b9dff1dbaeec6f659be8c72c15efe9778f615cbdac03316f21d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d753fc0e1286b9dff1dbaeec6f659be8c72c15efe9778f615cbdac03316f21d8", kill_on_drop: false }`
[INFO] [stdout] d753fc0e1286b9dff1dbaeec6f659be8c72c15efe9778f615cbdac03316f21d8