[INFO] fetching crate serenity 0.8.6... [INFO] checking serenity-0.8.6 against try#96b3c169cd2d8959926fa240f10342f1659f8ae3 for pr-71896 [INFO] extracting crate serenity 0.8.6 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate serenity 0.8.6 on toolchain 96b3c169cd2d8959926fa240f10342f1659f8ae3 [INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate serenity 0.8.6 [INFO] finished tweaking crates.io crate serenity 0.8.6 [INFO] tweaked toml for crates.io crate serenity 0.8.6 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "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] 4704a6695a2dcd73efa68996167f329a3adbe2788102476dc05f1ce1701e6f8d [INFO] running `"docker" "start" "-a" "4704a6695a2dcd73efa68996167f329a3adbe2788102476dc05f1ce1701e6f8d"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking untrusted v0.7.1 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking pin-project-lite v0.1.5 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Compiling serenity v0.8.6 (/opt/rustwide/workdir) [INFO] [stderr] Checking uwl v0.6.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling ring v0.16.13 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking http v0.2.1 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Checking encoding_rs v0.8.22 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking threadpool v1.8.0 [INFO] [stderr] Checking flate2 v1.0.14 [INFO] [stderr] Compiling syn v1.0.19 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking tokio v0.2.20 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking input_buffer v0.2.0 [INFO] [stderr] Checking http v0.1.21 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking sha-1 v0.8.2 [INFO] [stderr] Checking webpki v0.21.2 [INFO] [stderr] Checking sct v0.6.0 [INFO] [stderr] Checking ct-logs v0.6.0 [INFO] [stderr] Checking rustls v0.17.0 [INFO] [stderr] Checking webpki-roots v0.18.0 [INFO] [stderr] Checking rustls v0.16.0 [INFO] [stderr] Checking tungstenite v0.9.2 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking rustls-native-certs v0.3.0 [INFO] [stderr] Checking tokio-rustls v0.13.0 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling pin-project-internal v0.4.13 [INFO] [stderr] Compiling command_attr v0.2.0 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking pin-project v0.4.13 [INFO] [stderr] Checking h2 v0.2.5 [INFO] [stderr] Checking serde v1.0.106 [INFO] [stderr] Checking hyper v0.13.5 [INFO] [stderr] Checking hyper-rustls v0.20.0 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking reqwest v0.10.4 [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/channel/guild_channel.rs:384:17 [INFO] [stderr] | [INFO] [stderr] 384 | std::mem::replace(self, channel); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/channel/message.rs:260:17 [INFO] [stderr] | [INFO] [stderr] 260 | mem::replace(self, edited); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/guild/emoji.rs:127:25 [INFO] [stderr] | [INFO] [stderr] 127 | mem::replace(self, emoji); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/user.rs:722:13 [INFO] [stderr] | [INFO] [stderr] 722 | mem::replace(self, replacement); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/webhook.rs:146:17 [INFO] [stderr] | [INFO] [stderr] 146 | mem::replace(self, replacement); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/channel/guild_channel.rs:384:17 [INFO] [stderr] | [INFO] [stderr] 384 | std::mem::replace(self, channel); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/channel/message.rs:260:17 [INFO] [stderr] | [INFO] [stderr] 260 | mem::replace(self, edited); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/guild/emoji.rs:127:25 [INFO] [stderr] | [INFO] [stderr] 127 | mem::replace(self, emoji); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/user.rs:722:13 [INFO] [stderr] | [INFO] [stderr] 722 | mem::replace(self, replacement); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/model/webhook.rs:146:17 [INFO] [stderr] | [INFO] [stderr] 146 | mem::replace(self, replacement); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 31s [INFO] running `"docker" "inspect" "4704a6695a2dcd73efa68996167f329a3adbe2788102476dc05f1ce1701e6f8d"` [INFO] running `"docker" "rm" "-f" "4704a6695a2dcd73efa68996167f329a3adbe2788102476dc05f1ce1701e6f8d"` [INFO] [stdout] 4704a6695a2dcd73efa68996167f329a3adbe2788102476dc05f1ce1701e6f8d