[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#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenkail%2Fserenity-ref" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Chenkail/serenity-ref on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-6/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2f34bbfc2429d5ed80675bb024342105f9dc328f7b25265c8c5b5e99347281c
[INFO] running `Command { std: "docker" "start" "-a" "a2f34bbfc2429d5ed80675bb024342105f9dc328f7b25265c8c5b5e99347281c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2f34bbfc2429d5ed80675bb024342105f9dc328f7b25265c8c5b5e99347281c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f34bbfc2429d5ed80675bb024342105f9dc328f7b25265c8c5b5e99347281c", kill_on_drop: false }`
[INFO] [stdout] a2f34bbfc2429d5ed80675bb024342105f9dc328f7b25265c8c5b5e99347281c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f3a989cced15138bb86a95d912fd2c2fe7c73f953d831f538ad090fe755f72f
[INFO] running `Command { std: "docker" "start" "-a" "0f3a989cced15138bb86a95d912fd2c2fe7c73f953d831f538ad090fe755f72f", kill_on_drop: false }`
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
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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: 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: 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: 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] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "0f3a989cced15138bb86a95d912fd2c2fe7c73f953d831f538ad090fe755f72f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3a989cced15138bb86a95d912fd2c2fe7c73f953d831f538ad090fe755f72f", kill_on_drop: false }`
[INFO] [stdout] 0f3a989cced15138bb86a95d912fd2c2fe7c73f953d831f538ad090fe755f72f