[INFO] cloning repository https://github.com/merleck/Rust-Practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/merleck/Rust-Practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerleck%2FRust-Practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerleck%2FRust-Practise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d99aaf19ddafcae764a7f309160ba782ebc247e
[INFO] checking merleck/Rust-Practise against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerleck%2FRust-Practise" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merleck/Rust-Practise 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/merleck/Rust-Practise
[INFO] finished tweaking git repo https://github.com/merleck/Rust-Practise
[INFO] tweaked toml for git repo https://github.com/merleck/Rust-Practise written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/merleck/Rust-Practise 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a075cb3b629412e7fda91e0a8c865a9b252177170eee5c5f4a786e9eeb0e7a9
[INFO] running `Command { std: "docker" "start" "-a" "7a075cb3b629412e7fda91e0a8c865a9b252177170eee5c5f4a786e9eeb0e7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a075cb3b629412e7fda91e0a8c865a9b252177170eee5c5f4a786e9eeb0e7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a075cb3b629412e7fda91e0a8c865a9b252177170eee5c5f4a786e9eeb0e7a9", kill_on_drop: false }`
[INFO] [stdout] 7a075cb3b629412e7fda91e0a8c865a9b252177170eee5c5f4a786e9eeb0e7a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] aebf061899912cdc5f3f71d3dc0c7f058979743edefe56555ec40d200c66f9f4
[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" "aebf061899912cdc5f3f71d3dc0c7f058979743edefe56555ec40d200c66f9f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ferris-says v0.1.1
[INFO] [stderr]     Checking hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `Command { std: "docker" "inspect" "aebf061899912cdc5f3f71d3dc0c7f058979743edefe56555ec40d200c66f9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aebf061899912cdc5f3f71d3dc0c7f058979743edefe56555ec40d200c66f9f4", kill_on_drop: false }`
[INFO] [stdout] aebf061899912cdc5f3f71d3dc0c7f058979743edefe56555ec40d200c66f9f4