[INFO] fetching crate prust_test 0.1.2... [INFO] testing prust_test-0.1.2 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate prust_test 0.1.2 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate prust_test 0.1.2 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-3/source/.cargo/config.toml [INFO] started tweaking crates.io crate prust_test 0.1.2 [INFO] finished tweaking crates.io crate prust_test 0.1.2 [INFO] tweaked toml for crates.io crate prust_test 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate crates.io crate prust_test 0.1.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dirs-next v1.0.2 [INFO] [stderr] Downloaded text_io v0.1.8 [INFO] [stderr] Downloaded serialport v3.3.0 [INFO] [stderr] Downloaded rustyline v6.3.0 [INFO] [stderr] Downloaded prust_core v0.1.2 [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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e9ff0637b007caa9f43829b2fcbddca57d353d3171dae477e075cad8a4baaa5e [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" "e9ff0637b007caa9f43829b2fcbddca57d353d3171dae477e075cad8a4baaa5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e9ff0637b007caa9f43829b2fcbddca57d353d3171dae477e075cad8a4baaa5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9ff0637b007caa9f43829b2fcbddca57d353d3171dae477e075cad8a4baaa5e", kill_on_drop: false }` [INFO] [stdout] e9ff0637b007caa9f43829b2fcbddca57d353d3171dae477e075cad8a4baaa5e [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" "+beta-2021-09-08" "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] 328ede29a1cf1100978b4e7d9bd646c17a09e022bf066b24cd0054da504adf67 [INFO] running `Command { std: "docker" "start" "-a" "328ede29a1cf1100978b4e7d9bd646c17a09e022bf066b24cd0054da504adf67", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling text_io v0.1.8 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling prust_core v0.1.2 [INFO] [stderr] Compiling dirs-next v1.0.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling libudev v0.2.0 [INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `core::option` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prust_core-0.1.2/src/error.rs:27:40 [INFO] [stdout] | [INFO] [stdout] 27 | impl core::convert::From for Error { [INFO] [stdout] | ^^^^^^^^^ not found in `core::option` [INFO] [stdout] | [INFO] [stdout] help: there is an enum variant `crate::Error::NoneError`; try using the variant's enum [INFO] [stdout] | [INFO] [stdout] 27 | impl core::convert::From for Error { [INFO] [stdout] | ~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `core::option` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prust_core-0.1.2/src/error.rs:28:30 [INFO] [stdout] | [INFO] [stdout] 28 | fn from(_: core::option::NoneError) -> Self { [INFO] [stdout] | ^^^^^^^^^ not found in `core::option` [INFO] [stdout] | [INFO] [stdout] help: there is an enum variant `crate::Error::NoneError`; try using the variant's enum [INFO] [stdout] | [INFO] [stdout] 28 | fn from(_: crate::Error) -> Self { [INFO] [stdout] | ~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prust_core-0.1.2/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(allow_internal_unstable)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prust_core-0.1.2/src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prust_core-0.1.2/src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(arbitrary_enum_discriminant)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `arbitrary_enum_discriminant` has been stable since 1.56.0 and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0412, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] [stderr] error: could not compile `prust_core` due to 6 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "328ede29a1cf1100978b4e7d9bd646c17a09e022bf066b24cd0054da504adf67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "328ede29a1cf1100978b4e7d9bd646c17a09e022bf066b24cd0054da504adf67", kill_on_drop: false }` [INFO] [stdout] 328ede29a1cf1100978b4e7d9bd646c17a09e022bf066b24cd0054da504adf67