[INFO] updating cached repository https://github.com/ant1441/slack-token
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8189eb33a7032a79585456ca8040774a26257be3
[INFO] testing ant1441/slack-token against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fant1441%2Fslack-token" "/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/ant1441/slack-token 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/ant1441/slack-token
[INFO] finished tweaking git repo https://github.com/ant1441/slack-token
[INFO] tweaked toml for git repo https://github.com/ant1441/slack-token written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ant1441/slack-token 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-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" "MAP_USER_ID=0" "-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" "--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] aa3fc506a63bed5f21bd4369726f5df2db776c8f488edf3a4bc2978ce3dc1a6c
[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" "aa3fc506a63bed5f21bd4369726f5df2db776c8f488edf3a4bc2978ce3dc1a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3fc506a63bed5f21bd4369726f5df2db776c8f488edf3a4bc2978ce3dc1a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3fc506a63bed5f21bd4369726f5df2db776c8f488edf3a4bc2978ce3dc1a6c", kill_on_drop: false }`
[INFO] [stdout] aa3fc506a63bed5f21bd4369726f5df2db776c8f488edf3a4bc2978ce3dc1a6c
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f98f5416c5d3ea5832d4c74baef2dbb1cf8e95aea6ac9063be350fb569c67e2
[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" "7f98f5416c5d3ea5832d4c74baef2dbb1cf8e95aea6ac9063be350fb569c67e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling quote v0.3.15
[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-0.2.0/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" "7f98f5416c5d3ea5832d4c74baef2dbb1cf8e95aea6ac9063be350fb569c67e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f98f5416c5d3ea5832d4c74baef2dbb1cf8e95aea6ac9063be350fb569c67e2", kill_on_drop: false }`
[INFO] [stdout] 7f98f5416c5d3ea5832d4c74baef2dbb1cf8e95aea6ac9063be350fb569c67e2