[INFO] cloning repository https://github.com/anuj-apdev/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anuj-apdev/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuj-apdev%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuj-apdev%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 730511f6f8d0dee817a16706fa3742d8cda7e7b1
[INFO] checking anuj-apdev/rust-learn against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuj-apdev%2Frust-learn" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anuj-apdev/rust-learn on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anuj-apdev/rust-learn
[INFO] finished tweaking git repo https://github.com/anuj-apdev/rust-learn
[INFO] tweaked toml for git repo https://github.com/anuj-apdev/rust-learn written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/anuj-apdev/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 2387887d5f2df7afe96e3da247cf89ce15a9281ba12e0970f4e39c5d1817355d
[INFO] running `Command { std: "docker" "start" "-a" "2387887d5f2df7afe96e3da247cf89ce15a9281ba12e0970f4e39c5d1817355d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2387887d5f2df7afe96e3da247cf89ce15a9281ba12e0970f4e39c5d1817355d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2387887d5f2df7afe96e3da247cf89ce15a9281ba12e0970f4e39c5d1817355d", kill_on_drop: false }`
[INFO] [stdout] 2387887d5f2df7afe96e3da247cf89ce15a9281ba12e0970f4e39c5d1817355d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] bf80f6d6d8f706183e1299370ccb48b7c86cde4ee95cab8447096d58d8526b72
[INFO] running `Command { std: "docker" "start" "-a" "bf80f6d6d8f706183e1299370ccb48b7c86cde4ee95cab8447096d58d8526b72", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking extreme v666.666.666666
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rio v0.9.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling zerocopy-derive v0.2.1
[INFO] [stderr]     Checking zerocopy v0.4.0
[INFO] [stderr]     Checking rust-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.62s
[INFO] running `Command { std: "docker" "inspect" "bf80f6d6d8f706183e1299370ccb48b7c86cde4ee95cab8447096d58d8526b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf80f6d6d8f706183e1299370ccb48b7c86cde4ee95cab8447096d58d8526b72", kill_on_drop: false }`
[INFO] [stdout] bf80f6d6d8f706183e1299370ccb48b7c86cde4ee95cab8447096d58d8526b72