[INFO] cloning repository https://github.com/uniphil/contact-sheet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uniphil/contact-sheet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funiphil%2Fcontact-sheet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funiphil%2Fcontact-sheet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86dd514eba481acc50486a28ab52ee876fbcd529
[INFO] testing uniphil/contact-sheet against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funiphil%2Fcontact-sheet" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uniphil/contact-sheet on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uniphil/contact-sheet
[INFO] finished tweaking git repo https://github.com/uniphil/contact-sheet
[INFO] tweaked toml for git repo https://github.com/uniphil/contact-sheet written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/uniphil/contact-sheet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slug v0.1.2
[INFO] [stderr]   Downloaded rocket_contrib v0.2.8
[INFO] [stderr]   Downloaded unidecode v0.2.0
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded cookie v0.6.2
[INFO] [stderr]   Downloaded serde_urlencoded v0.4.3
[INFO] [stderr]   Downloaded r2d2 v0.7.2
[INFO] [stderr]   Downloaded postgres-protocol v0.2.2
[INFO] [stderr]   Downloaded postgres-derive v0.3.1
[INFO] [stderr]   Downloaded bufstream v0.1.3
[INFO] [stderr]   Downloaded rocket_codegen v0.2.8
[INFO] [stderr]   Downloaded reqwest v0.5.2
[INFO] [stderr]   Downloaded url v1.4.1
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.2
[INFO] [stderr]   Downloaded gcc v0.3.50
[INFO] [stderr]   Downloaded state v0.2.2
[INFO] [stderr]   Downloaded humansize v1.0.1
[INFO] [stderr]   Downloaded rocket v0.2.8
[INFO] [stderr]   Downloaded md5 v0.3.4
[INFO] [stderr]   Downloaded openssl-sys v0.9.13
[INFO] [stderr]   Downloaded r2d2_postgres v0.12.0
[INFO] [stderr]   Downloaded openssl v0.9.13
[INFO] [stderr]   Downloaded pest v0.4.1
[INFO] [stderr]   Downloaded postgres-shared v0.2.1
[INFO] [stderr]   Downloaded postgres v0.14.1
[INFO] [stderr]   Downloaded hyper-native-tls v0.2.3
[INFO] [stderr]   Downloaded tera v0.7.2
[INFO] [stderr]   Downloaded hyper v0.10.11
[INFO] [stderr]   Downloaded serde_derive v0.9.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d17b62f6c50c6998d06cd24a2fbb1d60acc9f3ef7d6c92ab1eeb3ec83c139527
[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" "d17b62f6c50c6998d06cd24a2fbb1d60acc9f3ef7d6c92ab1eeb3ec83c139527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d17b62f6c50c6998d06cd24a2fbb1d60acc9f3ef7d6c92ab1eeb3ec83c139527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d17b62f6c50c6998d06cd24a2fbb1d60acc9f3ef7d6c92ab1eeb3ec83c139527", kill_on_drop: false }`
[INFO] [stdout] d17b62f6c50c6998d06cd24a2fbb1d60acc9f3ef7d6c92ab1eeb3ec83c139527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e61bbb31d7ecd73d6130140ff7059dcf9ace3b04780e001405b0d2b24dc55288
[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" "e61bbb31d7ecd73d6130140ff7059dcf9ace3b04780e001405b0d2b24dc55288", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]    Compiling openssl v0.9.13
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling fallible-iterator v0.1.3
[INFO] [stderr]    Compiling md5 v0.3.4
[INFO] [stderr]    Compiling unidecode v0.2.0
[INFO] [stderr]    Compiling state v0.2.2
[INFO] [stderr]    Compiling humansize v1.0.1
[INFO] [stderr]    Compiling bufstream v0.1.3
[INFO] [stderr]    Compiling pest v0.4.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.13
[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] [stderr]    Compiling num_cpus v1.5.1
[INFO] [stderr]    Compiling base64 v0.5.2
[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" "e61bbb31d7ecd73d6130140ff7059dcf9ace3b04780e001405b0d2b24dc55288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61bbb31d7ecd73d6130140ff7059dcf9ace3b04780e001405b0d2b24dc55288", kill_on_drop: false }`
[INFO] [stdout] e61bbb31d7ecd73d6130140ff7059dcf9ace3b04780e001405b0d2b24dc55288
