[INFO] fetching crate prometheus-query 0.4.0...
[INFO] testing prometheus-query-0.4.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate prometheus-query 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate prometheus-query 0.4.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate prometheus-query 0.4.0
[INFO] finished tweaking crates.io crate prometheus-query 0.4.0
[INFO] tweaked toml for crates.io crate prometheus-query 0.4.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-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" "+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] ad5e2346fee1be6fea2ea8eb892c9dd0d26cd3815c9c093f4b119e7c8ff25be3
[INFO] running `"docker" "start" "-a" "ad5e2346fee1be6fea2ea8eb892c9dd0d26cd3815c9c093f4b119e7c8ff25be3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.6
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling prometheus-query v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> src/lib.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![feature(custom_attribute)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]    |
[INFO] [stderr]    = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> src/lib.rs:20:38
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(futures_api, async_await, await_macro)]
[INFO] [stderr]    |                                      ^^^^^^^^^^^ feature has been removed
[INFO] [stderr]    |
[INFO] [stderr]    = note: subsumed by `.await` syntax
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]   --> src/client.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:172:9
[INFO] [stderr]     |
[INFO] [stderr] 172 |         await!(self.make_http_get_api_call(u))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.make_http_get_api_call(u).await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:176:20
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let resp = await!(self.client.get(u).compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.client.get(u).compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:177:20
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let body = await!(resp.into_body().concat2().compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `resp.into_body().concat2().compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:216:20
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let resp = await!(self.client.request(post).compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.client.request(post).compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:217:20
[INFO] [stderr]     |
[INFO] [stderr] 217 |         let body = await!(resp.into_body().concat2().compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `resp.into_body().concat2().compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:233:20
[INFO] [stderr]     |
[INFO] [stderr] 233 |         let resp = await!(self.client.request(post).compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.client.request(post).compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:234:20
[INFO] [stderr]     |
[INFO] [stderr] 234 |         let body = await!(resp.into_body().concat2().compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `resp.into_body().concat2().compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:249:20
[INFO] [stderr]     |
[INFO] [stderr] 249 |         let resp = await!(self.client.request(post).compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `self.client.request(post).compat().await`
[INFO] [stderr] 
[INFO] [stderr] error: incorrect use of `await`
[INFO] [stderr]    --> src/client.rs:250:20
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let body = await!(resp.into_body().concat2().compat())?;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: `await` is a postfix operation: `resp.into_body().concat2().compat().await`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![feature(custom_attribute)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(futures_api, async_await, await_macro)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 21 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 `prometheus-query`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ad5e2346fee1be6fea2ea8eb892c9dd0d26cd3815c9c093f4b119e7c8ff25be3"`
[INFO] running `"docker" "rm" "-f" "ad5e2346fee1be6fea2ea8eb892c9dd0d26cd3815c9c093f4b119e7c8ff25be3"`
[INFO] [stdout] ad5e2346fee1be6fea2ea8eb892c9dd0d26cd3815c9c093f4b119e7c8ff25be3