[INFO] updating cached repository https://github.com/Nordgedanken/IMAPServer-rs [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] e7b20e771645f2c74028cd71d2897ccc4434ff1f [INFO] checking Nordgedanken/IMAPServer-rs against beta-2019-10-27 for pr-65897 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNordgedanken%2FIMAPServer-rs" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nordgedanken/IMAPServer-rs on toolchain beta-2019-10-27 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Nordgedanken/IMAPServer-rs [INFO] finished tweaking git repo https://github.com/Nordgedanken/IMAPServer-rs [INFO] tweaked toml for git repo https://github.com/Nordgedanken/IMAPServer-rs written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/Nordgedanken/IMAPServer-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=allow" "-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" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b223db166acfc920461f2ebe4936ece218d823aa53385ff43761d5d8ada8da2b [INFO] running `"docker" "start" "-a" "b223db166acfc920461f2ebe4936ece218d823aa53385ff43761d5d8ada8da2b"` [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking tower-service v0.3.0-alpha.2 [INFO] [stderr] Checking tower-layer v0.3.0-alpha.2 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling bincode v1.2.0 [INFO] [stderr] Checking getrandom v0.1.12 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking flate2 v1.0.12 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking charset v0.1.2 [INFO] [stderr] Checking dbus v0.7.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking md-5 v0.8.0 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking mailparse v0.8.2 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking num-complex v0.2.3 [INFO] [stderr] Checking tokio-reactor v0.1.10 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-threadpool v0.1.16 [INFO] [stderr] Checking crossbeam v0.7.2 [INFO] [stderr] Checking pwhash v0.3.0 [INFO] [stderr] Checking num-iter v0.1.39 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Checking tokio-udp v0.1.5 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking twox-hash v1.5.0 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking num-rational v0.2.2 [INFO] [stderr] Checking bigdecimal v0.1.0 [INFO] [stderr] Checking simplelog v0.7.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking rust_decimal v1.0.3 [INFO] [stderr] Checking async-bincode v0.4.9 [INFO] [stderr] Checking mysql_common v0.18.0 [INFO] [stderr] Checking mysql v16.1.0 [INFO] [stderr] Compiling pin-project-internal v0.4.4 [INFO] [stderr] Compiling tracing-attributes v0.1.4 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.6 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Checking tracing v0.1.9 [INFO] [stderr] Checking pin-project v0.4.4 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.6 [INFO] [stderr] Checking tower-discover v0.3.0-alpha.2 [INFO] [stderr] Checking tower-util v0.3.0-alpha.2 [INFO] [stderr] Checking tower-load-shed v0.3.0-alpha.2 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.6 [INFO] [stderr] Checking tokio-fs v0.2.0-alpha.6 [INFO] [stderr] Checking tower-buffer v0.3.0-alpha.2 [INFO] [stderr] Checking tokio-net v0.2.0-alpha.6 [INFO] [stderr] Checking tower-timeout v0.3.0-alpha.2 [INFO] [stderr] Checking tower-retry v0.3.0-alpha.2 [INFO] [stderr] Checking tower-load v0.3.0-alpha.2 [INFO] [stderr] Checking tower-limit v0.3.0-alpha.2 [INFO] [stderr] Checking tokio v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-tower v0.2.0-alpha.2a [INFO] [stderr] Checking tower v0.3.0-alpha.2 [INFO] [stderr] Checking IMAPServer v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(async_closure)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(async_closure)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `IMAPServer`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `IMAPServer`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "b223db166acfc920461f2ebe4936ece218d823aa53385ff43761d5d8ada8da2b"` [INFO] running `"docker" "rm" "-f" "b223db166acfc920461f2ebe4936ece218d823aa53385ff43761d5d8ada8da2b"` [INFO] [stdout] b223db166acfc920461f2ebe4936ece218d823aa53385ff43761d5d8ada8da2b