[INFO] cloning repository https://github.com/ben01189998819991197253/fretta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ben01189998819991197253/fretta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben01189998819991197253%2Ffretta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben01189998819991197253%2Ffretta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61002c1be8bb0d683279cc4e7e01b2bfbfa1debc
[INFO] checking ben01189998819991197253/fretta against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben01189998819991197253%2Ffretta" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ben01189998819991197253/fretta on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ben01189998819991197253/fretta
[INFO] finished tweaking git repo https://github.com/ben01189998819991197253/fretta
[INFO] tweaked toml for git repo https://github.com/ben01189998819991197253/fretta written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ben01189998819991197253/fretta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 676f35cd0380037950606335c062f304c854bf43b48b1ba7d4564f66b34da471
[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" "676f35cd0380037950606335c062f304c854bf43b48b1ba7d4564f66b34da471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "676f35cd0380037950606335c062f304c854bf43b48b1ba7d4564f66b34da471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "676f35cd0380037950606335c062f304c854bf43b48b1ba7d4564f66b34da471", kill_on_drop: false }`
[INFO] [stdout] 676f35cd0380037950606335c062f304c854bf43b48b1ba7d4564f66b34da471
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a72d2a152025f66c65a1d607d726782b6c0a27c734f10f1ef0e02a506915e342
[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" "a72d2a152025f66c65a1d607d726782b6c0a27c734f10f1ef0e02a506915e342", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking fretta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.35s
[INFO] running `Command { std: "docker" "inspect" "a72d2a152025f66c65a1d607d726782b6c0a27c734f10f1ef0e02a506915e342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72d2a152025f66c65a1d607d726782b6c0a27c734f10f1ef0e02a506915e342", kill_on_drop: false }`
[INFO] [stdout] a72d2a152025f66c65a1d607d726782b6c0a27c734f10f1ef0e02a506915e342