[INFO] fetching crate admiral 0.1.0... [INFO] testing admiral-0.1.0 against 1.55.0 for beta-1.56-1 [INFO] extracting crate admiral 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate admiral 0.1.0 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 crates.io crate admiral 0.1.0 [INFO] finished tweaking crates.io crate admiral 0.1.0 [INFO] tweaked toml for crates.io crate admiral 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate crates.io crate admiral 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 94d3a53a719329d7ab0a9f36ea3399f66a6a458cb198ead6bf4d11a7c56644a4 [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" "94d3a53a719329d7ab0a9f36ea3399f66a6a458cb198ead6bf4d11a7c56644a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "94d3a53a719329d7ab0a9f36ea3399f66a6a458cb198ead6bf4d11a7c56644a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94d3a53a719329d7ab0a9f36ea3399f66a6a458cb198ead6bf4d11a7c56644a4", kill_on_drop: false }` [INFO] [stdout] 94d3a53a719329d7ab0a9f36ea3399f66a6a458cb198ead6bf4d11a7c56644a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "build" "--frozen" "--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] 2c02552c1198b804a401437c953c44438c6ac5e9704fc1284a332496baec687f [INFO] running `Command { std: "docker" "start" "-a" "2c02552c1198b804a401437c953c44438c6ac5e9704fc1284a332496baec687f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling futures-core v0.3.16 [INFO] [stderr] Compiling futures-task v0.3.16 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling futures-channel v0.3.16 [INFO] [stderr] Compiling futures-sink v0.3.16 [INFO] [stderr] Compiling futures-io v0.3.16 [INFO] [stderr] Compiling slab v0.4.3 [INFO] [stderr] Compiling admiral v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling futures-macro v0.3.16 [INFO] [stderr] Compiling futures-util v0.3.16 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling tokio v1.9.0 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling mio v0.7.13 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling rustc-test v0.3.1 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling admiral-types v0.1.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/admiral-types-0.1.0/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(fn_traits)] [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 `admiral-types` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "2c02552c1198b804a401437c953c44438c6ac5e9704fc1284a332496baec687f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c02552c1198b804a401437c953c44438c6ac5e9704fc1284a332496baec687f", kill_on_drop: false }` [INFO] [stdout] 2c02552c1198b804a401437c953c44438c6ac5e9704fc1284a332496baec687f