[INFO] cloning repository https://github.com/thea603/wu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thea603/wu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea603%2Fwu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea603%2Fwu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 692d5529eb88e6d1fcc15b66e662b1072cf8963c
[INFO] testing thea603/wu against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea603%2Fwu" "/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/thea603/wu on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thea603/wu
[INFO] finished tweaking git repo https://github.com/thea603/wu
[INFO] tweaked toml for git repo https://github.com/thea603/wu written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/thea603/wu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.2
[INFO] [stderr]   Downloaded version_check v0.1.2
[INFO] [stderr]   Downloaded unicode-bidi v0.3.3
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded url v1.5.0
[INFO] [stderr]   Downloaded rocket_codegen v0.2.8
[INFO] [stderr]   Downloaded redox_syscall v0.1.18
[INFO] [stderr]   Downloaded winutil v0.1.0
[INFO] [stderr]   Downloaded bufstream v0.1.3
[INFO] [stderr]   Downloaded base64 v0.4.2
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded hyper v0.10.12
[INFO] [stderr]   Downloaded advapi32-sys v0.1.2
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded data-encoding v1.2.0
[INFO] [stderr]   Downloaded hostname v0.1.3
[INFO] [stderr]   Downloaded separator v0.3.1
[INFO] [stderr]   Downloaded scan_fmt v0.1.1
[INFO] [stderr]   Downloaded chrono v0.3.1
[INFO] [stderr]   Downloaded state v0.2.2
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded libc v0.2.24
[INFO] [stderr]   Downloaded cookie v0.6.2
[INFO] [stderr]   Downloaded idna v0.1.2
[INFO] [stderr]   Downloaded num v0.1.39
[INFO] [stderr]   Downloaded num_cpus v1.5.1
[INFO] [stderr]   Downloaded rocket v0.2.8
[INFO] [stderr]   Downloaded percent-encoding v1.0.0
[INFO] [stderr]   Downloaded num-traits v0.1.39
[INFO] [stderr]   Downloaded serde_derive v0.9.15
[INFO] [stderr]   Downloaded bson v0.8.0
[INFO] [stderr]   Downloaded textnonce v0.6.0
[INFO] [stderr]   Downloaded mongodb v0.3.0
[INFO] [stderr]   Downloaded json v0.11.6
[INFO] [stderr]   Downloaded semver v0.7.0
[INFO] [stderr]   Downloaded term v0.4.5
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 0f86d3acddabdc339ce57c6365421a9e2fd674cf3e55468915e727ae2593f882
[INFO] running `Command { std: "docker" "start" "-a" "0f86d3acddabdc339ce57c6365421a9e2fd674cf3e55468915e727ae2593f882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f86d3acddabdc339ce57c6365421a9e2fd674cf3e55468915e727ae2593f882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f86d3acddabdc339ce57c6365421a9e2fd674cf3e55468915e727ae2593f882", kill_on_drop: false }`
[INFO] [stdout] 0f86d3acddabdc339ce57c6365421a9e2fd674cf3e55468915e727ae2593f882
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] 0da292dcecc98401f8cf66e48f327e7cc9850392c3318aea91a80df69bbcc85a
[INFO] running `Command { std: "docker" "start" "-a" "0da292dcecc98401f8cf66e48f327e7cc9850392c3318aea91a80df69bbcc85a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.24
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling state v0.2.2
[INFO] [stderr]    Compiling bufstream v0.1.3
[INFO] [stderr]    Compiling data-encoding v1.2.0
[INFO] [stderr]    Compiling scan_fmt v0.1.1
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling json v0.11.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]    Compiling base64 v0.4.2
[INFO] [stderr]    Compiling semver v0.7.0
[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/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[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 `state`
[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" "0da292dcecc98401f8cf66e48f327e7cc9850392c3318aea91a80df69bbcc85a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da292dcecc98401f8cf66e48f327e7cc9850392c3318aea91a80df69bbcc85a", kill_on_drop: false }`
[INFO] [stdout] 0da292dcecc98401f8cf66e48f327e7cc9850392c3318aea91a80df69bbcc85a