[INFO] fetching crate sfw-tools 0.4.0...
[INFO] testing sfw-tools-0.4.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate sfw-tools 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sfw-tools 0.4.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking crates.io crate sfw-tools 0.4.0
[INFO] finished tweaking crates.io crate sfw-tools 0.4.0
[INFO] tweaked toml for crates.io crate sfw-tools 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate sfw-tools 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seahorse v1.1.1
[INFO] [stderr]   Downloaded fp-core v0.1.9
[INFO] [stderr]   Downloaded tailcall-impl v0.1.6
[INFO] [stderr]   Downloaded tailcall v0.1.6
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb32d7e0850f40e6270283595040ac0a0a7e1a46d4c9a0e9996d3d188026db9
[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" "3eb32d7e0850f40e6270283595040ac0a0a7e1a46d4c9a0e9996d3d188026db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb32d7e0850f40e6270283595040ac0a0a7e1a46d4c9a0e9996d3d188026db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb32d7e0850f40e6270283595040ac0a0a7e1a46d4c9a0e9996d3d188026db9", kill_on_drop: false }`
[INFO] [stdout] 3eb32d7e0850f40e6270283595040ac0a0a7e1a46d4c9a0e9996d3d188026db9
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3709a105b07db8d9ed4470bdbda068a7a2290f9982dde37289cda3743f580847
[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" "3709a105b07db8d9ed4470bdbda068a7a2290f9982dde37289cda3743f580847", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling seahorse v1.1.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling fp-core v0.1.9
[INFO] [stderr]    Compiling tailcall-impl v0.1.6
[INFO] [stderr]    Compiling tailcall v0.1.6
[INFO] [stderr]    Compiling sfw-tools v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:204:1
[INFO] [stdout]     |
[INFO] [stdout] 204 | #![feature(try_trait)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sfw-tools` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3709a105b07db8d9ed4470bdbda068a7a2290f9982dde37289cda3743f580847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3709a105b07db8d9ed4470bdbda068a7a2290f9982dde37289cda3743f580847", kill_on_drop: false }`
[INFO] [stdout] 3709a105b07db8d9ed4470bdbda068a7a2290f9982dde37289cda3743f580847
