[INFO] updating cached repository https://github.com/leaxoy/remq
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b166f4d1eb29bbb7396a45d310d411b50f436baf
[INFO] testing leaxoy/remq against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleaxoy%2Fremq" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leaxoy/remq on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/leaxoy/remq
[INFO] finished tweaking git repo https://github.com/leaxoy/remq
[INFO] tweaked toml for git repo https://github.com/leaxoy/remq written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/leaxoy/remq already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d02f6178ebce1c8ce2de55b43d93722f885635cb9f2a08fe8368937dd00668ae
[INFO] running `"docker" "start" "-a" "d02f6178ebce1c8ce2de55b43d93722f885635cb9f2a08fe8368937dd00668ae"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling tokio-io v0.1.9
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling tokio-timer v0.2.7
[INFO] [stderr]    Compiling tokio-current-thread v0.1.3
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-async-await v0.1.4
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.7
[INFO] [stderr]    Compiling syn v0.15.11
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.2
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling remq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(await_macro, async_await, futures_api)]
[INFO] [stderr]   |            ^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `.await` syntax
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(await_macro, async_await, futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `remq`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d02f6178ebce1c8ce2de55b43d93722f885635cb9f2a08fe8368937dd00668ae"`
[INFO] running `"docker" "rm" "-f" "d02f6178ebce1c8ce2de55b43d93722f885635cb9f2a08fe8368937dd00668ae"`
[INFO] [stdout] d02f6178ebce1c8ce2de55b43d93722f885635cb9f2a08fe8368937dd00668ae