[INFO] fetching crate slack 0.23.0...
[INFO] checking slack-0.23.0 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate slack 0.23.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate slack 0.23.0 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate slack 0.23.0
[INFO] finished tweaking crates.io crate slack 0.23.0
[INFO] tweaked toml for crates.io crate slack 0.23.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate slack 0.23.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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=forbid" "-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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 817d2a4aacf7074b522bb4d61002041c8ed21bad79dac8bc5c7cef818fa5641a
[INFO] running `"docker" "start" "-a" "817d2a4aacf7074b522bb4d61002041c8ed21bad79dac8bc5c7cef818fa5641a"`
[INFO] [stderr]     Checking openssl v0.10.26
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]     Checking async-compression v0.2.0
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking hyper-tls v0.4.0
[INFO] [stderr]     Checking reqwest v0.10.0
[INFO] [stderr]     Checking slack_api v0.22.0
[INFO] [stderr]     Checking slack v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:101:37
[INFO] [stderr]     |
[INFO] [stderr] 101 |             Error::Http(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:102:42
[INFO] [stderr]     |
[INFO] [stderr] 102 |             Error::WebSocket(ref e) => e.description(),
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:103:37
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Error::Utf8(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:104:36
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Error::Url(ref e) => e.description(),
[INFO] [stderr]     |                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:105:37
[INFO] [stderr]     |
[INFO] [stderr] 105 |             Error::Json(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:101:37
[INFO] [stderr]     |
[INFO] [stderr] 101 |             Error::Http(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:102:42
[INFO] [stderr]     |
[INFO] [stderr] 102 |             Error::WebSocket(ref e) => e.description(),
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:103:37
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Error::Utf8(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:104:36
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Error::Url(ref e) => e.description(),
[INFO] [stderr]     |                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:105:37
[INFO] [stderr]     |
[INFO] [stderr] 105 |             Error::Json(ref e) => e.description(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.40s
[INFO] running `"docker" "inspect" "817d2a4aacf7074b522bb4d61002041c8ed21bad79dac8bc5c7cef818fa5641a"`
[INFO] running `"docker" "rm" "-f" "817d2a4aacf7074b522bb4d61002041c8ed21bad79dac8bc5c7cef818fa5641a"`
[INFO] [stdout] 817d2a4aacf7074b522bb4d61002041c8ed21bad79dac8bc5c7cef818fa5641a