[INFO] cloning repository https://github.com/olix0r/tokio-task-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olix0r/tokio-task-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folix0r%2Ftokio-task-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folix0r%2Ftokio-task-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65d1cce1415e0a17468d0ac4d01174c67802443b
[INFO] checking olix0r/tokio-task-example against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folix0r%2Ftokio-task-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/olix0r/tokio-task-example on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/olix0r/tokio-task-example
[INFO] finished tweaking git repo https://github.com/olix0r/tokio-task-example
[INFO] tweaked toml for git repo https://github.com/olix0r/tokio-task-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/olix0r/tokio-task-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2739c0dda8c21c3bceda34235f10a71496ab57cfa63ef8c4157b4b2feb561a76
[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" "2739c0dda8c21c3bceda34235f10a71496ab57cfa63ef8c4157b4b2feb561a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2739c0dda8c21c3bceda34235f10a71496ab57cfa63ef8c4157b4b2feb561a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2739c0dda8c21c3bceda34235f10a71496ab57cfa63ef8c4157b4b2feb561a76", kill_on_drop: false }`
[INFO] [stdout] 2739c0dda8c21c3bceda34235f10a71496ab57cfa63ef8c4157b4b2feb561a76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95fdcf65db6714785605a0c6f3e1ee299dc4fa24c413944402c70cf962f85e7f
[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" "95fdcf65db6714785605a0c6f3e1ee299dc4fa24c413944402c70cf962f85e7f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking tokio-timer v0.1.1
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking pretty_env_logger v0.1.0
[INFO] [stderr]     Checking tokio-task-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.39s
[INFO] running `Command { std: "docker" "inspect" "95fdcf65db6714785605a0c6f3e1ee299dc4fa24c413944402c70cf962f85e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fdcf65db6714785605a0c6f3e1ee299dc4fa24c413944402c70cf962f85e7f", kill_on_drop: false }`
[INFO] [stdout] 95fdcf65db6714785605a0c6f3e1ee299dc4fa24c413944402c70cf962f85e7f