[INFO] updating cached repository https://github.com/stickeritis/sticker2-python
[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] 9bc133dbaddc9db6f31957a57837a8885dcd55ec
[INFO] testing stickeritis/sticker2-python 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%2Fstickeritis%2Fsticker2-python" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stickeritis/sticker2-python 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/stickeritis/sticker2-python
[INFO] finished tweaking git repo https://github.com/stickeritis/sticker2-python
[INFO] tweaked toml for git repo https://github.com/stickeritis/sticker2-python written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/stickeritis/sticker2-python 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 26b6ed961312bad3a5bae5700a1e5a5ed6e15a6c204e82c18368264dc6d08fa2
[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" "26b6ed961312bad3a5bae5700a1e5a5ed6e15a6c204e82c18368264dc6d08fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26b6ed961312bad3a5bae5700a1e5a5ed6e15a6c204e82c18368264dc6d08fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b6ed961312bad3a5bae5700a1e5a5ed6e15a6c204e82c18368264dc6d08fa2", kill_on_drop: false }`
[INFO] [stdout] 26b6ed961312bad3a5bae5700a1e5a5ed6e15a6c204e82c18368264dc6d08fa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 8b9b55ea47659bf99993402efbe950b42261d95dca71bcdf8936c494ee2b9a30
[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" "8b9b55ea47659bf99993402efbe950b42261d95dca71bcdf8936c494ee2b9a30", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling curl v0.4.29
[INFO] [stderr]    Compiling fst v0.4.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling seqalign v0.2.2
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]    Compiling sentencepiece v0.2.1
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]    Compiling curl-sys v0.4.31+curl-7.70.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling sentencepiece-sys v0.2.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling time v0.1.43
[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/lock_api-0.3.4/src/lib.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling flate2 v1.0.14
[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 `lock_api`.
[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" "8b9b55ea47659bf99993402efbe950b42261d95dca71bcdf8936c494ee2b9a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9b55ea47659bf99993402efbe950b42261d95dca71bcdf8936c494ee2b9a30", kill_on_drop: false }`
[INFO] [stdout] 8b9b55ea47659bf99993402efbe950b42261d95dca71bcdf8936c494ee2b9a30