[INFO] fetching crate kaguya_rs 0.1.5...
[INFO] testing kaguya_rs-0.1.5 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate kaguya_rs 0.1.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kaguya_rs 0.1.5 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kaguya_rs 0.1.5
[INFO] finished tweaking crates.io crate kaguya_rs 0.1.5
[INFO] tweaked toml for crates.io crate kaguya_rs 0.1.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ca15fdd269fbec4a446c8937c48fdaf8554048530558666557875728e03df1d
[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" "9ca15fdd269fbec4a446c8937c48fdaf8554048530558666557875728e03df1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ca15fdd269fbec4a446c8937c48fdaf8554048530558666557875728e03df1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca15fdd269fbec4a446c8937c48fdaf8554048530558666557875728e03df1d", kill_on_drop: false }`
[INFO] [stdout] 9ca15fdd269fbec4a446c8937c48fdaf8554048530558666557875728e03df1d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc3df02edd4b7c24a4596cdbdbf481fb3737402c19153a562d89318f05b2e014
[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" "fc3df02edd4b7c24a4596cdbdbf481fb3737402c19153a562d89318f05b2e014", kill_on_drop: false }`
[INFO] [stderr]    Compiling kaguya_rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "fc3df02edd4b7c24a4596cdbdbf481fb3737402c19153a562d89318f05b2e014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3df02edd4b7c24a4596cdbdbf481fb3737402c19153a562d89318f05b2e014", kill_on_drop: false }`
[INFO] [stdout] fc3df02edd4b7c24a4596cdbdbf481fb3737402c19153a562d89318f05b2e014
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a4e30d15d82f372eafda4c4082e933376e7f03289882ee0787617efa874587e
[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" "2a4e30d15d82f372eafda4c4082e933376e7f03289882ee0787617efa874587e", kill_on_drop: false }`
[INFO] [stderr]    Compiling kaguya_rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/basic_fn.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(trace_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/workdir/src/basic_fn/mac.rs:203:28
[INFO] [stdout]     |
[INFO] [stdout] 203 |         $(ret.extend($it););*
[INFO] [stdout]     |                            ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/workdir/src/basic_fn/mac.rs:203:28
[INFO] [stdout]     |
[INFO] [stdout] 203 |         $(ret.extend($it););*
[INFO] [stdout]     |                            ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kaguya_rs`
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2a4e30d15d82f372eafda4c4082e933376e7f03289882ee0787617efa874587e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4e30d15d82f372eafda4c4082e933376e7f03289882ee0787617efa874587e", kill_on_drop: false }`
[INFO] [stdout] 2a4e30d15d82f372eafda4c4082e933376e7f03289882ee0787617efa874587e