[INFO] cloning repository https://github.com/Kroisse/futures-compat-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kroisse/futures-compat-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKroisse%2Ffutures-compat-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKroisse%2Ffutures-compat-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7406efdbc924eea9be8e9df359410a0a006961e
[INFO] checking Kroisse/futures-compat-example against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKroisse%2Ffutures-compat-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kroisse/futures-compat-example 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 git repo https://github.com/Kroisse/futures-compat-example
[INFO] finished tweaking git repo https://github.com/Kroisse/futures-compat-example
[INFO] tweaked toml for git repo https://github.com/Kroisse/futures-compat-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Kroisse/futures-compat-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72e0c3ceb25d2043feca91e3c3f305296ab8398b0fe3f8874fd7244847d26b5b
[INFO] running `Command { std: "docker" "start" "-a" "72e0c3ceb25d2043feca91e3c3f305296ab8398b0fe3f8874fd7244847d26b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72e0c3ceb25d2043feca91e3c3f305296ab8398b0fe3f8874fd7244847d26b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e0c3ceb25d2043feca91e3c3f305296ab8398b0fe3f8874fd7244847d26b5b", kill_on_drop: false }`
[INFO] [stdout] 72e0c3ceb25d2043feca91e3c3f305296ab8398b0fe3f8874fd7244847d26b5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e3a68831190aced320f65051bf5eaafbd333de6c428a016100a2f23782e45a52
[INFO] running `Command { std: "docker" "start" "-a" "e3a68831190aced320f65051bf5eaafbd333de6c428a016100a2f23782e45a52", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling cc v1.0.20
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.1
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pin-utils-0.1.0-alpha.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pin)]
[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]     Checking rustc-demangle v0.1.9
[INFO] [stderr] error: could not compile `pin-utils`.
[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" "e3a68831190aced320f65051bf5eaafbd333de6c428a016100a2f23782e45a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a68831190aced320f65051bf5eaafbd333de6c428a016100a2f23782e45a52", kill_on_drop: false }`
[INFO] [stdout] e3a68831190aced320f65051bf5eaafbd333de6c428a016100a2f23782e45a52
