[INFO] cloning repository https://github.com/seikichi/nozokimi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seikichi/nozokimi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseikichi%2Fnozokimi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseikichi%2Fnozokimi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74de89a4a02be04911dd796037bf23c6da48efcf
[INFO] checking seikichi/nozokimi against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseikichi%2Fnozokimi" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seikichi/nozokimi 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/seikichi/nozokimi
[INFO] finished tweaking git repo https://github.com/seikichi/nozokimi
[INFO] tweaked toml for git repo https://github.com/seikichi/nozokimi written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/seikichi/nozokimi 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e38dc1e62080fbf0da52db08948e6e0d3a3758fe8726b66d50bd34098df6621e
[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" "e38dc1e62080fbf0da52db08948e6e0d3a3758fe8726b66d50bd34098df6621e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e38dc1e62080fbf0da52db08948e6e0d3a3758fe8726b66d50bd34098df6621e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e38dc1e62080fbf0da52db08948e6e0d3a3758fe8726b66d50bd34098df6621e", kill_on_drop: false }`
[INFO] [stdout] e38dc1e62080fbf0da52db08948e6e0d3a3758fe8726b66d50bd34098df6621e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c32dd4dc52d95b6bf965fd7fd1cd03ebfc630ad75ff89792156306672fb3d936
[INFO] running `Command { std: "docker" "start" "-a" "c32dd4dc52d95b6bf965fd7fd1cd03ebfc630ad75ff89792156306672fb3d936", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]     Checking async-util v0.1.0 (https://github.com/tokio-rs/async#e1b3ba3d)
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]     Checking arc-waker v0.1.0 (https://github.com/tokio-rs/async#e1b3ba3d)
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking tokio-sync v0.2.0 (https://github.com/tokio-rs/tokio#59bc364a)
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/59bc364/tokio-sync/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(async_await)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-utils v0.6.5 (https://github.com/stjepang/crossbeam?branch=raw-parker#e2a7760f)
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking tracing-core v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[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 `tokio-sync`.
[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" "c32dd4dc52d95b6bf965fd7fd1cd03ebfc630ad75ff89792156306672fb3d936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32dd4dc52d95b6bf965fd7fd1cd03ebfc630ad75ff89792156306672fb3d936", kill_on_drop: false }`
[INFO] [stdout] c32dd4dc52d95b6bf965fd7fd1cd03ebfc630ad75ff89792156306672fb3d936
