[INFO] fetching crate iref-enum 1.2.0...
[INFO] testing iref-enum-1.2.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate iref-enum 1.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate iref-enum 1.2.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iref-enum 1.2.0
[INFO] finished tweaking crates.io crate iref-enum 1.2.0
[INFO] tweaked toml for crates.io crate iref-enum 1.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate iref-enum 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iref v1.4.0
[INFO] [stderr]   Downloaded pct-str v1.1.0
[INFO] [stderr]   Downloaded static-iref v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] 4ebfce2a79de31ee13c848e2830b2f744aafe73751c742f48cc21c28eda6f601
[INFO] running `Command { std: "docker" "start" "-a" "4ebfce2a79de31ee13c848e2830b2f744aafe73751c742f48cc21c28eda6f601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ebfce2a79de31ee13c848e2830b2f744aafe73751c742f48cc21c28eda6f601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ebfce2a79de31ee13c848e2830b2f744aafe73751c742f48cc21c28eda6f601", kill_on_drop: false }`
[INFO] [stdout] 4ebfce2a79de31ee13c848e2830b2f744aafe73751c742f48cc21c28eda6f601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eb9d83ddb9113a3c06da340f50c71977b08f130731d3c3e5073647c16adb354
[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" "2eb9d83ddb9113a3c06da340f50c71977b08f130731d3c3e5073647c16adb354", kill_on_drop: false }`
[INFO] [stderr]    Compiling pct-str v1.1.0
[INFO] [stderr]    Compiling iref v1.4.0
[INFO] [stderr]    Compiling iref-enum v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.71s
[INFO] running `Command { std: "docker" "inspect" "2eb9d83ddb9113a3c06da340f50c71977b08f130731d3c3e5073647c16adb354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb9d83ddb9113a3c06da340f50c71977b08f130731d3c3e5073647c16adb354", kill_on_drop: false }`
[INFO] [stdout] 2eb9d83ddb9113a3c06da340f50c71977b08f130731d3c3e5073647c16adb354
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 209a5cee27b0d0d57eb2480612ba39a1ee5f0cff4a8f50994285d1d1f73e1304
[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" "209a5cee27b0d0d57eb2480612ba39a1ee5f0cff4a8f50994285d1d1f73e1304", kill_on_drop: false }`
[INFO] [stderr]    Compiling static-iref v1.0.0
[INFO] [stderr]    Compiling iref-enum v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/simple.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene)]
[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 `iref-enum`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "209a5cee27b0d0d57eb2480612ba39a1ee5f0cff4a8f50994285d1d1f73e1304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209a5cee27b0d0d57eb2480612ba39a1ee5f0cff4a8f50994285d1d1f73e1304", kill_on_drop: false }`
[INFO] [stdout] 209a5cee27b0d0d57eb2480612ba39a1ee5f0cff4a8f50994285d1d1f73e1304
