[INFO] cloning repository https://github.com/lolgeny/challengerbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolgeny/challengerbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fchallengerbot", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00c1404f8d4d70a50f0147054b9feea0727c7f5d
[INFO] checking lolgeny/challengerbot against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fchallengerbot" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/lolgeny/challengerbot
[INFO] finished tweaking git repo https://github.com/lolgeny/challengerbot
[INFO] tweaked toml for git repo https://github.com/lolgeny/challengerbot written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lolgeny/challengerbot on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lolgeny/challengerbot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "2240da422e1edbd032a943bc2ea73ed56d493fdedb32cb061ddd993517161902", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `join`
[INFO] [stdout]  --> src/main.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{join, lock::Mutex, try_join};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `guild::GuildStatus`
[INFO] [stdout]   --> src/main.rs:13:73
[INFO] [stdout]    |
[INFO] [stdout] 13 |     }, model::{channel::{Message, Reaction}, event::MessageUpdateEvent, guild::GuildStatus, id::{ChannelId, GuildId, MessageId}, pre...
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `guild::Guild`
[INFO] [stdout]  --> src/challenges.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |         }, guild::Guild, id::{ChannelId, RoleId}, misc::Mentionable, permissions::Permissions}};
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `channel::Message` and `prelude::User`
[INFO] [stdout]  --> src/database.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     channel::Message,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     id::{ChannelId, MessageId, UserId},
[INFO] [stdout] 8 |     prelude::User,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Database`
[INFO] [stdout]  --> src/submissions.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     database::{Database, Submission},
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context as _`
[INFO] [stdout]  --> src/submissions.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context as _, Result};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `join` and `lock::MutexGuard`
[INFO] [stdout]  --> src/submissions.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{join, lock::MutexGuard};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Channel`
[INFO] [stdout]  --> src/submissions.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serenity::{client::Context, model::{channel::{Channel, Message, Reaction}, id::{MessageId, RoleId}, misc::Mentionable}};
[INFO] [stdout]   |                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `join`
[INFO] [stdout]  --> src/main.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{join, lock::Mutex, try_join};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `guild::GuildStatus`
[INFO] [stdout]   --> src/main.rs:13:73
[INFO] [stdout]    |
[INFO] [stdout] 13 |     }, model::{channel::{Message, Reaction}, event::MessageUpdateEvent, guild::GuildStatus, id::{ChannelId, GuildId, MessageId}, pre...
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `guild::Guild`
[INFO] [stdout]  --> src/challenges.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |         }, guild::Guild, id::{ChannelId, RoleId}, misc::Mentionable, permissions::Permissions}};
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `channel::Message` and `prelude::User`
[INFO] [stdout]  --> src/database.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     channel::Message,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     id::{ChannelId, MessageId, UserId},
[INFO] [stdout] 8 |     prelude::User,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Database`
[INFO] [stdout]  --> src/submissions.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     database::{Database, Submission},
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context as _`
[INFO] [stdout]  --> src/submissions.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{anyhow, bail, Context as _, Result};
[INFO] [stdout]   |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `join` and `lock::MutexGuard`
[INFO] [stdout]  --> src/submissions.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{join, lock::MutexGuard};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Channel`
[INFO] [stdout]  --> src/submissions.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serenity::{client::Context, model::{channel::{Channel, Message, Reaction}, id::{MessageId, RoleId}, misc::Mentionable}};
[INFO] [stdout]   |                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/submissions.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub async fn message_update(ctx: &Context, message: &Message) -> Result<()> {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/submissions.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub async fn message_delete(ctx: &Context, message_id: &MessageId) -> Result<()> {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/submissions.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub async fn message_update(ctx: &Context, message: &Message) -> Result<()> {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/submissions.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub async fn message_delete(ctx: &Context, message_id: &MessageId) -> Result<()> {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `challengerbot` (bin "challengerbot" test) due to 1 previous error; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `challengerbot` (bin "challengerbot") due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6952afef511d4f5c284eed1c2d43e3710dcb93ad0b8937d58471615642f6f30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6952afef511d4f5c284eed1c2d43e3710dcb93ad0b8937d58471615642f6f30c", kill_on_drop: false }`
[INFO] [stdout] 6952afef511d4f5c284eed1c2d43e3710dcb93ad0b8937d58471615642f6f30c
