[INFO] cloning repository https://github.com/oliveira-caio/reconhecimento_letras
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oliveira-caio/reconhecimento_letras" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foliveira-caio%2Freconhecimento_letras", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foliveira-caio%2Freconhecimento_letras'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c115febb274a84f81f2a76022aa3dccee13b4e5
[INFO] checking oliveira-caio/reconhecimento_letras against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foliveira-caio%2Freconhecimento_letras" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oliveira-caio/reconhecimento_letras on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oliveira-caio/reconhecimento_letras
[INFO] finished tweaking git repo https://github.com/oliveira-caio/reconhecimento_letras
[INFO] tweaked toml for git repo https://github.com/oliveira-caio/reconhecimento_letras written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d190f74197ef88d3cca232ad5977ebba6c89b3ca95febfeee52a331be15cf278
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d190f74197ef88d3cca232ad5977ebba6c89b3ca95febfeee52a331be15cf278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d190f74197ef88d3cca232ad5977ebba6c89b3ca95febfeee52a331be15cf278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d190f74197ef88d3cca232ad5977ebba6c89b3ca95febfeee52a331be15cf278", kill_on_drop: false }`
[INFO] [stdout] d190f74197ef88d3cca232ad5977ebba6c89b3ca95febfeee52a331be15cf278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85cb544d951933e7aab1616daade309295e29cb3bc83809e8c1e0ae88154956c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85cb544d951933e7aab1616daade309295e29cb3bc83809e8c1e0ae88154956c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking ndarray v0.15.1
[INFO] [stderr]     Checking rand_distr v0.4.0
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking reconhecimento_letras v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.25s
[INFO] running `Command { std: "docker" "inspect" "85cb544d951933e7aab1616daade309295e29cb3bc83809e8c1e0ae88154956c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85cb544d951933e7aab1616daade309295e29cb3bc83809e8c1e0ae88154956c", kill_on_drop: false }`
[INFO] [stdout] 85cb544d951933e7aab1616daade309295e29cb3bc83809e8c1e0ae88154956c