[INFO] fetching crate rls-analysis 0.18.1...
[INFO] checking rls-analysis-0.18.1 against beta for pr-78714
[INFO] extracting crate rls-analysis 0.18.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rls-analysis 0.18.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rls-analysis 0.18.1
[INFO] finished tweaking crates.io crate rls-analysis 0.18.1
[INFO] tweaked toml for crates.io crate rls-analysis 0.18.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rls-analysis 0.18.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40639d8a7db7a75212b45355675f2fa5f9ece7dacebba74bbd557bb11ab41d06
[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" "40639d8a7db7a75212b45355675f2fa5f9ece7dacebba74bbd557bb11ab41d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40639d8a7db7a75212b45355675f2fa5f9ece7dacebba74bbd557bb11ab41d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40639d8a7db7a75212b45355675f2fa5f9ece7dacebba74bbd557bb11ab41d06", kill_on_drop: false }`
[INFO] [stdout] 40639d8a7db7a75212b45355675f2fa5f9ece7dacebba74bbd557bb11ab41d06
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 369e8f652d15b510f98b0a319bbdddb124e69ac122d48309f8cf08b90158ef87
[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" "369e8f652d15b510f98b0a319bbdddb124e69ac122d48309f8cf08b90158ef87", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking json v0.11.13
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking rls-span v0.5.2
[INFO] [stderr]     Checking fst v0.3.3
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking rls-data v0.19.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling derive-new v0.5.6
[INFO] [stderr]     Checking rls-analysis v0.18.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:564:25
[INFO] [stdout]     |
[INFO] [stdout] 564 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:564:25
[INFO] [stdout]     |
[INFO] [stdout] 564 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Idents`
[INFO] [stdout]    --> src/analysis.rs:106:1
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub type Idents = HashMap<PathBuf, IdentsByLine>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/std_api_crate.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `rls-analysis`
[INFO] [stdout] warning: type alias is never used: `Idents`
[INFO] [stdout]    --> src/analysis.rs:106:1
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub type Idents = HashMap<PathBuf, IdentsByLine>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "369e8f652d15b510f98b0a319bbdddb124e69ac122d48309f8cf08b90158ef87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369e8f652d15b510f98b0a319bbdddb124e69ac122d48309f8cf08b90158ef87", kill_on_drop: false }`
[INFO] [stdout] 369e8f652d15b510f98b0a319bbdddb124e69ac122d48309f8cf08b90158ef87