[INFO] cloning repository https://github.com/PewPewPewcoding/rengi-torvus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PewPewPewcoding/rengi-torvus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPewPewPewcoding%2Frengi-torvus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPewPewPewcoding%2Frengi-torvus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a9692e8afc57167bf2f2d6745aa62ccefd52947
[INFO] checking PewPewPewcoding/rengi-torvus against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPewPewPewcoding%2Frengi-torvus" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PewPewPewcoding/rengi-torvus 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/PewPewPewcoding/rengi-torvus
[INFO] finished tweaking git repo https://github.com/PewPewPewcoding/rengi-torvus
[INFO] tweaked toml for git repo https://github.com/PewPewPewcoding/rengi-torvus written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/PewPewPewcoding/rengi-torvus 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 10b996464370fcaacb73f9e44906f8ff7834e96aaa0428da3bcca2a004739b75
[INFO] running `Command { std: "docker" "start" "-a" "10b996464370fcaacb73f9e44906f8ff7834e96aaa0428da3bcca2a004739b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10b996464370fcaacb73f9e44906f8ff7834e96aaa0428da3bcca2a004739b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b996464370fcaacb73f9e44906f8ff7834e96aaa0428da3bcca2a004739b75", kill_on_drop: false }`
[INFO] [stdout] 10b996464370fcaacb73f9e44906f8ff7834e96aaa0428da3bcca2a004739b75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b1b78df04f97937a0996725b0615851793bf86333ab18f759264d9df30b32096
[INFO] running `Command { std: "docker" "start" "-a" "b1b78df04f97937a0996725b0615851793bf86333ab18f759264d9df30b32096", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking sum_type v0.1.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking log v0.4.6
[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/sum_type-0.1.1/src/lib.rs:181:35
[INFO] [stdout]     |
[INFO] [stdout] 181 | #![cfg_attr(feature = "try_from", feature(try_from))]
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking inflate v0.4.5
[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 `sum_type`.
[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" "b1b78df04f97937a0996725b0615851793bf86333ab18f759264d9df30b32096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1b78df04f97937a0996725b0615851793bf86333ab18f759264d9df30b32096", kill_on_drop: false }`
[INFO] [stdout] b1b78df04f97937a0996725b0615851793bf86333ab18f759264d9df30b32096
