[INFO] fetching crate persistentcache_procmacro 0.0.3...
[INFO] checking persistentcache_procmacro-0.0.3 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate persistentcache_procmacro 0.0.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate persistentcache_procmacro 0.0.3 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persistentcache_procmacro 0.0.3
[INFO] finished tweaking crates.io crate persistentcache_procmacro 0.0.3
[INFO] tweaked toml for crates.io crate persistentcache_procmacro 0.0.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ac10c9d78c8454e2133e5c31ef266c12418260f1299a10fd00c199436c41b06
[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" "5ac10c9d78c8454e2133e5c31ef266c12418260f1299a10fd00c199436c41b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ac10c9d78c8454e2133e5c31ef266c12418260f1299a10fd00c199436c41b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac10c9d78c8454e2133e5c31ef266c12418260f1299a10fd00c199436c41b06", kill_on_drop: false }`
[INFO] [stdout] 5ac10c9d78c8454e2133e5c31ef266c12418260f1299a10fd00c199436c41b06
[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=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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c49d8a7e10ec8a8562d5bd56beef559adfdff6d1b9f08b5dd2f74c9ceb57ac1
[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" "3c49d8a7e10ec8a8562d5bd56beef559adfdff6d1b9f08b5dd2f74c9ceb57ac1", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking proc-macro2 v0.1.10
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking futures-await-quote v0.4.0
[INFO] [stderr]     Checking futures-await-synom v0.12.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking futures-await-syn v0.12.0
[INFO] [stderr]     Checking persistentcache_procmacro v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(proc_macro)]
[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] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(proc_macro)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `persistentcache_procmacro`.
[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] 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: build failed
[INFO] running `Command { std: "docker" "inspect" "3c49d8a7e10ec8a8562d5bd56beef559adfdff6d1b9f08b5dd2f74c9ceb57ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c49d8a7e10ec8a8562d5bd56beef559adfdff6d1b9f08b5dd2f74c9ceb57ac1", kill_on_drop: false }`
[INFO] [stdout] 3c49d8a7e10ec8a8562d5bd56beef559adfdff6d1b9f08b5dd2f74c9ceb57ac1
