[INFO] cloning repository https://github.com/Chenkail/serenity-ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Chenkail/serenity-ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenkail%2Fserenity-ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenkail%2Fserenity-ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72f6f03eeddcb81529c75075e94665b29fbb8aaa
[INFO] checking Chenkail/serenity-ref against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenkail%2Fserenity-ref" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Chenkail/serenity-ref on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Chenkail/serenity-ref
[INFO] finished tweaking git repo https://github.com/Chenkail/serenity-ref
[INFO] tweaked toml for git repo https://github.com/Chenkail/serenity-ref written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Chenkail/serenity-ref already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha-1 v0.9.3
[INFO] [stderr]   Downloaded async-global-executor v2.0.2
[INFO] [stderr]   Downloaded nb-connect v1.0.3
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[INFO] [stderr]   Downloaded serenity v0.10.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.12
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.6
[INFO] [stderr]   Downloaded async-std v1.9.0
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e566b26db820c219790c0f47786d301c504b4f5fcc095efc58103a91f2c20dfa
[INFO] running `Command { std: "docker" "start" "-a" "e566b26db820c219790c0f47786d301c504b4f5fcc095efc58103a91f2c20dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e566b26db820c219790c0f47786d301c504b4f5fcc095efc58103a91f2c20dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e566b26db820c219790c0f47786d301c504b4f5fcc095efc58103a91f2c20dfa", kill_on_drop: false }`
[INFO] [stdout] e566b26db820c219790c0f47786d301c504b4f5fcc095efc58103a91f2c20dfa
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7ac92c18970903afbbaafd8953a179bb8d11ad5d75386e367693ea1c4a18c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dd7ac92c18970903afbbaafd8953a179bb8d11ad5d75386e367693ea1c4a18c4", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `bot_id`
[INFO] [stdout]   --> src/main.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let (owners, bot_id) = match http.get_current_application_info().await {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bot_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_member`
[INFO] [stdout]  --> src/utils.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) async fn get_member(ctx: &Context, msg: &Message, member_name: &str) -> Option<Member> {
[INFO] [stdout]   |                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bot_id`
[INFO] [stdout]   --> src/main.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let (owners, bot_id) = match http.get_current_application_info().await {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bot_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_channel`
[INFO] [stdout]   --> src/utils.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) async fn get_channel(ctx: &Context, msg: &Message, channel_name: &str) -> Option<GuildChannel> {
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_role`
[INFO] [stdout]   --> src/utils.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) async fn get_role(ctx: &Context, msg: &Message, role_name: &str) -> Option<Role> {
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_member`
[INFO] [stdout]  --> src/utils.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) async fn get_member(ctx: &Context, msg: &Message, member_name: &str) -> Option<Member> {
[INFO] [stdout]   |                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_channel`
[INFO] [stdout]   --> src/utils.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) async fn get_channel(ctx: &Context, msg: &Message, channel_name: &str) -> Option<GuildChannel> {
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_role`
[INFO] [stdout]   --> src/utils.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) async fn get_role(ctx: &Context, msg: &Message, role_name: &str) -> Option<Role> {
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "dd7ac92c18970903afbbaafd8953a179bb8d11ad5d75386e367693ea1c4a18c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7ac92c18970903afbbaafd8953a179bb8d11ad5d75386e367693ea1c4a18c4", kill_on_drop: false }`
[INFO] [stdout] dd7ac92c18970903afbbaafd8953a179bb8d11ad5d75386e367693ea1c4a18c4