[INFO] fetching crate qecs 0.0.7... [INFO] testing qecs-0.0.7 against 1.55.0 for beta-1.56-1 [INFO] extracting crate qecs 0.0.7 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate qecs 0.0.7 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 qecs 0.0.7 [INFO] finished tweaking crates.io crate qecs 0.0.7 [INFO] tweaked toml for crates.io crate qecs 0.0.7 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3ef5a0291b586ae5a85b7bd24a526def4485978a503123d26424f04dd02c4cb2 [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" "3ef5a0291b586ae5a85b7bd24a526def4485978a503123d26424f04dd02c4cb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3ef5a0291b586ae5a85b7bd24a526def4485978a503123d26424f04dd02c4cb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ef5a0291b586ae5a85b7bd24a526def4485978a503123d26424f04dd02c4cb2", kill_on_drop: false }` [INFO] [stdout] 3ef5a0291b586ae5a85b7bd24a526def4485978a503123d26424f04dd02c4cb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d7ad5e431cc5244f6ed951a6340d76d1f5d72c2c7d485a3aa44c2fd7d91257ce [INFO] running `Command { std: "docker" "start" "-a" "d7ad5e431cc5244f6ed951a6340d76d1f5d72c2c7d485a3aa44c2fd7d91257ce", kill_on_drop: false }` [INFO] [stderr] Compiling downcast v0.2.3 [INFO] [stderr] Compiling vec_map v0.4.0 [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/downcast-0.2.3/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(get_type_id)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `get_type_id` found for reference `&T` in the current scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.2.3/src/lib.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | obj.get_type_id() [INFO] [stdout] | ^^^^^^^^^^^ method not found in `&T` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `downcast` due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "d7ad5e431cc5244f6ed951a6340d76d1f5d72c2c7d485a3aa44c2fd7d91257ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7ad5e431cc5244f6ed951a6340d76d1f5d72c2c7d485a3aa44c2fd7d91257ce", kill_on_drop: false }` [INFO] [stdout] d7ad5e431cc5244f6ed951a6340d76d1f5d72c2c7d485a3aa44c2fd7d91257ce