[INFO] cloning repository https://github.com/pomokhtari/rust-book-fa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pomokhtari/rust-book-fa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpomokhtari%2Frust-book-fa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpomokhtari%2Frust-book-fa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df9ff52c9dea9cafd50899b1b7c3204fbb057284
[INFO] checking pomokhtari/rust-book-fa against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpomokhtari%2Frust-book-fa" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  91% (4096/4482)   
Checking out files:  92% (4124/4482)   
Checking out files:  93% (4169/4482)   
Checking out files:  94% (4214/4482)   
Checking out files:  95% (4258/4482)   
Checking out files:  96% (4303/4482)   
Checking out files:  97% (4348/4482)   
Checking out files:  98% (4393/4482)   
Checking out files:  99% (4438/4482)   
Checking out files: 100% (4482/4482)   
Checking out files: 100% (4482/4482), done.
[INFO] validating manifest of git repo https://github.com/pomokhtari/rust-book-fa on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/pomokhtari/rust-book-fa
[INFO] finished tweaking git repo https://github.com/pomokhtari/rust-book-fa
[INFO] tweaked toml for git repo https://github.com/pomokhtari/rust-book-fa written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/pomokhtari/rust-book-fa already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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 regex-syntax v0.6.13
[INFO] [stderr]   Downloaded memchr v2.3.0
[INFO] [stderr]   Downloaded regex v1.3.3
[INFO] [stderr]   Downloaded filetime v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2afbd99d2c7be64df23d81d3015405f7840d0385648bd3ac21005006929c5257
[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" "2afbd99d2c7be64df23d81d3015405f7840d0385648bd3ac21005006929c5257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2afbd99d2c7be64df23d81d3015405f7840d0385648bd3ac21005006929c5257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2afbd99d2c7be64df23d81d3015405f7840d0385648bd3ac21005006929c5257", kill_on_drop: false }`
[INFO] [stdout] 2afbd99d2c7be64df23d81d3015405f7840d0385648bd3ac21005006929c5257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52c96b8606fd2a8981c27f591d802641c9132dd0037adbe4a2c02ba84868b5af
[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" "52c96b8606fd2a8981c27f591d802641c9132dd0037adbe4a2c02ba84868b5af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking rust-book v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.38s
[INFO] running `Command { std: "docker" "inspect" "52c96b8606fd2a8981c27f591d802641c9132dd0037adbe4a2c02ba84868b5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c96b8606fd2a8981c27f591d802641c9132dd0037adbe4a2c02ba84868b5af", kill_on_drop: false }`
[INFO] [stdout] 52c96b8606fd2a8981c27f591d802641c9132dd0037adbe4a2c02ba84868b5af