[INFO] updating cached repository https://github.com/jkcclemens/mod_mail [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] 9c6937f775b652505d4f7ce816261a11e0036d14 [INFO] testing jkcclemens/mod_mail against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fmod_mail" "/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/jkcclemens/mod_mail 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/jkcclemens/mod_mail [INFO] finished tweaking git repo https://github.com/jkcclemens/mod_mail [INFO] tweaked toml for git repo https://github.com/jkcclemens/mod_mail written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/jkcclemens/mod_mail 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-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=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] e8f396ab87c57f6fe1ec60a0e763721bcab4e8359a89ed3774bf697552d0c073 [INFO] running `"docker" "start" "-a" "e8f396ab87c57f6fe1ec60a0e763721bcab4e8359a89ed3774bf697552d0c073"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling cc v1.0.38 [INFO] [stderr] Compiling syn v0.15.43 [INFO] [stderr] Compiling spin v0.5.1 [INFO] [stderr] Compiling rustc-demangle v0.1.15 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling arrayref v0.3.5 [INFO] [stderr] Compiling fallible-iterator v0.1.6 [INFO] [stderr] Compiling md5 v0.3.8 [INFO] [stderr] Compiling serenity v0.6.3 [INFO] [stderr] Compiling uwl v0.4.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Compiling miniz_oxide v0.3.1 [INFO] [stderr] Compiling stringprep v0.1.2 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling hyper v0.12.33 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling generic-array v0.9.0 [INFO] [stderr] Compiling block-buffer v0.3.3 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.7.6 [INFO] [stderr] Compiling crypto-mac v0.5.2 [INFO] [stderr] Compiling sha-1 v0.8.1 [INFO] [stderr] Compiling hmac v0.5.0 [INFO] [stderr] Compiling sha2 v0.7.1 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling ring v0.14.6 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling miniz_oxide_c_api v0.2.3 [INFO] [stderr] Compiling miniz-sys v0.1.12 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling getrandom v0.1.8 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling socket2 v0.3.11 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling threadpool v1.7.1 [INFO] [stderr] Compiling rand_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling scheduled-thread-pool v0.2.2 [INFO] [stderr] Compiling flate2 v1.0.9 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling http v0.1.18 [INFO] [stderr] Compiling string v0.2.1 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling input_buffer v0.2.0 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling postgres-protocol v0.3.2 [INFO] [stderr] Compiling backtrace v0.3.34 [INFO] [stderr] Compiling tungstenite v0.6.1 [INFO] [stderr] Compiling error-chain v0.12.1 [INFO] [stderr] Compiling tokio-threadpool v0.1.15 [INFO] [stderr] Compiling uuid v0.7.4 [INFO] [stderr] Compiling postgres-shared v0.4.2 [INFO] [stderr] Compiling publicsuffix v1.5.2 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling r2d2 v0.8.5 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling postgres v0.15.2 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling sct v0.5.0 [INFO] [stderr] Compiling webpki v0.19.1 [INFO] [stderr] Compiling ct-logs v0.5.1 [INFO] [stderr] Compiling h2 v0.1.26 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling rustls v0.15.2 [INFO] [stderr] Compiling webpki-roots v0.16.0 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling tokio-rustls v0.9.3 [INFO] [stderr] Compiling serde_derive v1.0.98 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling diesel_derives v1.4.0 [INFO] [stderr] Compiling command_attr v0.1.4 [INFO] [stderr] Compiling hyper-rustls v0.16.1 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling dotenv v0.14.1 [INFO] [stderr] Compiling diesel v1.4.2 [INFO] [stderr] Compiling serde v1.0.98 [INFO] [stderr] Compiling serde_json v1.0.40 [INFO] [stderr] Compiling serde_urlencoded v0.5.5 [INFO] [stderr] Compiling chrono v0.4.7 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling reqwest v0.9.19 [INFO] [stderr] Compiling r2d2-diesel v1.0.0 [INFO] [stderr] Compiling mod_mail v0.1.0 (/opt/rustwide/workdir) [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(box_syntax)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `mod_mail`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "e8f396ab87c57f6fe1ec60a0e763721bcab4e8359a89ed3774bf697552d0c073"` [INFO] running `"docker" "rm" "-f" "e8f396ab87c57f6fe1ec60a0e763721bcab4e8359a89ed3774bf697552d0c073"` [INFO] [stdout] e8f396ab87c57f6fe1ec60a0e763721bcab4e8359a89ed3774bf697552d0c073