[INFO] cloning repository https://github.com/wonjongin/sub-discord-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wonjongin/sub-discord-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwonjongin%2Fsub-discord-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwonjongin%2Fsub-discord-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ea91e9c34501387d6252203d9ea3f8d45095e8
[INFO] checking wonjongin/sub-discord-bot against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwonjongin%2Fsub-discord-bot" "/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/wonjongin/sub-discord-bot on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wonjongin/sub-discord-bot
[INFO] finished tweaking git repo https://github.com/wonjongin/sub-discord-bot
[INFO] tweaked toml for git repo https://github.com/wonjongin/sub-discord-bot written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wonjongin/sub-discord-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68404d59a244f8a14c0a8f842433e37054475a016bfd4c8766138c5df166c60a
[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" "68404d59a244f8a14c0a8f842433e37054475a016bfd4c8766138c5df166c60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68404d59a244f8a14c0a8f842433e37054475a016bfd4c8766138c5df166c60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68404d59a244f8a14c0a8f842433e37054475a016bfd4c8766138c5df166c60a", kill_on_drop: false }`
[INFO] [stdout] 68404d59a244f8a14c0a8f842433e37054475a016bfd4c8766138c5df166c60a
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00c1a1d7782d26f95a7762f9a963bc3dd02ee3ac02091904c05855717edbfab2
[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" "00c1a1d7782d26f95a7762f9a963bc3dd02ee3ac02091904c05855717edbfab2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling serenity v0.10.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking typemap_rev v0.1.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.4.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking async-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.3.1
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking reqwest v0.11.1
[INFO] [stderr]     Checking sub-discord-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cap`
[INFO] [stdout]  --> src/mention.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Some(cap) => true,
[INFO] [stdout]   |          ^^^ help: if this is intentional, prefix it with an underscore: `_cap`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ext_user_id_from_mention`
[INFO] [stdout]   --> src/mention.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn ext_user_id_from_mention(input: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cap`
[INFO] [stdout]  --> src/mention.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Some(cap) => true,
[INFO] [stdout]   |          ^^^ help: if this is intentional, prefix it with an underscore: `_cap`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ext_user_id_from_mention`
[INFO] [stdout]   --> src/mention.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn ext_user_id_from_mention(input: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 57s
[INFO] running `Command { std: "docker" "inspect" "00c1a1d7782d26f95a7762f9a963bc3dd02ee3ac02091904c05855717edbfab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00c1a1d7782d26f95a7762f9a963bc3dd02ee3ac02091904c05855717edbfab2", kill_on_drop: false }`
[INFO] [stdout] 00c1a1d7782d26f95a7762f9a963bc3dd02ee3ac02091904c05855717edbfab2