[INFO] cloning repository https://github.com/AnyTimeTraveler/tbcli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnyTimeTraveler/tbcli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2Ftbcli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2Ftbcli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f51c92b36c2d082986317aff6a8432a07f7f65c
[INFO] checking AnyTimeTraveler/tbcli against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2Ftbcli" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnyTimeTraveler/tbcli on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnyTimeTraveler/tbcli
[INFO] finished tweaking git repo https://github.com/AnyTimeTraveler/tbcli
[INFO] tweaked toml for git repo https://github.com/AnyTimeTraveler/tbcli written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/AnyTimeTraveler/tbcli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-futures v0.2.3
[INFO] [stderr]   Downloaded tracing-attributes v0.1.7
[INFO] [stderr]   Downloaded telegram-bot-raw v0.7.0
[INFO] [stderr]   Downloaded tracing v0.1.13
[INFO] [stderr]   Downloaded tracing-core v0.1.10
[INFO] [stderr]   Downloaded telegram-bot v0.7.0
[INFO] [stderr]   Downloaded tokio v0.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 00beaacb2532cccfcc3eecba0d5db0dc17d7d146d623843ad9b7ceb1b481c30b
[INFO] running `Command { std: "docker" "start" "-a" "00beaacb2532cccfcc3eecba0d5db0dc17d7d146d623843ad9b7ceb1b481c30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00beaacb2532cccfcc3eecba0d5db0dc17d7d146d623843ad9b7ceb1b481c30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00beaacb2532cccfcc3eecba0d5db0dc17d7d146d623843ad9b7ceb1b481c30b", kill_on_drop: false }`
[INFO] [stdout] 00beaacb2532cccfcc3eecba0d5db0dc17d7d146d623843ad9b7ceb1b481c30b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d2ce7671fd36662439370a01ade9ecd00f9e430209e9be372596b526ddfc885
[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" "2d2ce7671fd36662439370a01ade9ecd00f9e430209e9be372596b526ddfc885", kill_on_drop: false }`
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking telegram-bot-raw v0.7.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio v0.2.17
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tracing v0.1.13
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking tracing-futures v0.2.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking telegram-bot v0.7.0
[INFO] [stderr]     Checking tbcli v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tbcli` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2d2ce7671fd36662439370a01ade9ecd00f9e430209e9be372596b526ddfc885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2ce7671fd36662439370a01ade9ecd00f9e430209e9be372596b526ddfc885", kill_on_drop: false }`
[INFO] [stdout] 2d2ce7671fd36662439370a01ade9ecd00f9e430209e9be372596b526ddfc885