[INFO] cloning repository https://github.com/joernnilsson/perceptron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joernnilsson/perceptron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoernnilsson%2Fperceptron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoernnilsson%2Fperceptron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 555ca1b53c7d44fce156b9884c00fc13db2d38fd
[INFO] checking joernnilsson/perceptron against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoernnilsson%2Fperceptron" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joernnilsson/perceptron 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/joernnilsson/perceptron
[INFO] finished tweaking git repo https://github.com/joernnilsson/perceptron
[INFO] tweaked toml for git repo https://github.com/joernnilsson/perceptron written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/joernnilsson/perceptron 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 508ca354290ff124014e9b13dfddc0540e6e1d2722a684c81946675f16ae1aa3
[INFO] running `Command { std: "docker" "start" "-a" "508ca354290ff124014e9b13dfddc0540e6e1d2722a684c81946675f16ae1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "508ca354290ff124014e9b13dfddc0540e6e1d2722a684c81946675f16ae1aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508ca354290ff124014e9b13dfddc0540e6e1d2722a684c81946675f16ae1aa3", kill_on_drop: false }`
[INFO] [stdout] 508ca354290ff124014e9b13dfddc0540e6e1d2722a684c81946675f16ae1aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 00f4461d2c519c0362478bc4972e185c6607c9de6d8522afe92c6e1005f68e6f
[INFO] running `Command { std: "docker" "start" "-a" "00f4461d2c519c0362478bc4972e185c6607c9de6d8522afe92c6e1005f68e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking fdeflate v0.3.3
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking wide v0.7.13
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling nalgebra-macros v0.2.1
[INFO] [stderr]     Checking tiff v0.9.0
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking nalgebra v0.32.3
[INFO] [stderr]     Checking imageproc v0.23.0
[INFO] [stderr]     Checking perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.41s
[INFO] running `Command { std: "docker" "inspect" "00f4461d2c519c0362478bc4972e185c6607c9de6d8522afe92c6e1005f68e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f4461d2c519c0362478bc4972e185c6607c9de6d8522afe92c6e1005f68e6f", kill_on_drop: false }`
[INFO] [stdout] 00f4461d2c519c0362478bc4972e185c6607c9de6d8522afe92c6e1005f68e6f