[INFO] cloning repository https://github.com/darkwater/um [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darkwater/um" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarkwater%2Fum"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarkwater%2Fum'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 290006bff8a85d175e37e16f89eb0fa19b9114ad [INFO] testing darkwater/um against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarkwater%2Fum" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/darkwater/um on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/darkwater/um [INFO] finished tweaking git repo https://github.com/darkwater/um [INFO] tweaked toml for git repo https://github.com/darkwater/um written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/darkwater/um already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-06-03" "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] 58d8ec3985f20117b68907e48b4f31a96f3f2486645a1e2f4579016b906f8835 [INFO] running `"docker" "start" "-a" "58d8ec3985f20117b68907e48b4f31a96f3f2486645a1e2f4579016b906f8835"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling futures v0.1.20 [INFO] [stderr] Compiling tokio-executor v0.1.1 [INFO] [stderr] Compiling tokio-io v0.1.6 [INFO] [stderr] Compiling tokio-threadpool v0.1.1 [INFO] [stderr] Compiling tokio-reactor v0.1.1 [INFO] [stderr] Compiling tokio-tcp v0.1.0 [INFO] [stderr] Compiling tokio-udp v0.1.0 [INFO] [stderr] Compiling tokio v0.1.4 [INFO] [stderr] Compiling um 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(match_default_bindings, nll, option_filter, try_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TcpListener` [INFO] [stderr] --> src/client.rs:7:18 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::net::{TcpListener, TcpStream}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `BufMut` [INFO] [stderr] --> src/commandcodec.rs:1:13 [INFO] [stderr] | [INFO] [stderr] 1 | use bytes::{BufMut, BytesMut}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Write` [INFO] [stderr] --> src/commandcodec.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fmt::Write; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::io` [INFO] [stderr] --> src/server.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use tokio::io; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: ambiguous associated item [INFO] [stderr] --> src/response.rs:54:46 [INFO] [stderr] | [INFO] [stderr] 54 | fn into_result(self) -> Result { [INFO] [stderr] | ^^^^^^^^^^^ help: use fully-qualified syntax: ` as Try>::Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ambiguous_associated_items)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #57644 [INFO] [stderr] note: `Error` could refer to the variant defined here [INFO] [stderr] --> src/response.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | Error(&'static str), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] note: `Error` could also refer to the associated type defined here [INFO] [stderr] [INFO] [stderr] warning: ambiguous associated item [INFO] [stderr] --> src/response.rs:61:22 [INFO] [stderr] | [INFO] [stderr] 61 | fn from_error(v: Self::Error) -> Self { [INFO] [stderr] | ^^^^^^^^^^^ help: use fully-qualified syntax: ` as Try>::Error` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #57644 [INFO] [stderr] note: `Error` could refer to the variant defined here [INFO] [stderr] --> src/response.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | Error(&'static str), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] note: `Error` could also refer to the associated type defined here [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 6 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `um`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "58d8ec3985f20117b68907e48b4f31a96f3f2486645a1e2f4579016b906f8835"` [INFO] running `"docker" "rm" "-f" "58d8ec3985f20117b68907e48b4f31a96f3f2486645a1e2f4579016b906f8835"` [INFO] [stdout] 58d8ec3985f20117b68907e48b4f31a96f3f2486645a1e2f4579016b906f8835