[INFO] cloning repository https://github.com/PurpleMyst/oxygen_bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PurpleMyst/oxygen_bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Foxygen_bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Foxygen_bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8ab96f4e52bedd44499e5daecd127b97fbfffa3
[INFO] checking PurpleMyst/oxygen_bot against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Foxygen_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/PurpleMyst/oxygen_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/PurpleMyst/oxygen_bot
[INFO] finished tweaking git repo https://github.com/PurpleMyst/oxygen_bot
[INFO] tweaked toml for git repo https://github.com/PurpleMyst/oxygen_bot written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/PurpleMyst/oxygen_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] adecb762c7b9436ad70086daaeee2e03c247ed7f2074cf0a59affb16c9a84db9
[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" "adecb762c7b9436ad70086daaeee2e03c247ed7f2074cf0a59affb16c9a84db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adecb762c7b9436ad70086daaeee2e03c247ed7f2074cf0a59affb16c9a84db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adecb762c7b9436ad70086daaeee2e03c247ed7f2074cf0a59affb16c9a84db9", kill_on_drop: false }`
[INFO] [stdout] adecb762c7b9436ad70086daaeee2e03c247ed7f2074cf0a59affb16c9a84db9
[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] 6dbc953678140f651f28aeba4e415f595153547e1d6ea2bd293ab0bd1fa36832
[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" "6dbc953678140f651f28aeba4e415f595153547e1d6ea2bd293ab0bd1fa36832", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.28
[INFO] [stderr]     Checking serde v1.0.11
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking toml v0.4.4
[INFO] [stderr]     Checking oxygen_bot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         lazy_static! {
[INFO] [stdout] 30 | |             // regexp groups
[INFO] [stdout] 31 | |             // 1: whole prefix
[INFO] [stdout] 32 | |             // 2: nickname or servername
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |             static ref LINE_REGEXP: Regex = Regex::new(r"(:([^! ]+)(?:!([^@]+)@(\S+))? )?(\w+)(?: (.+))?").unwrap();
[INFO] [stdout] 38 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         lazy_static! {
[INFO] [stdout] 30 | |             // regexp groups
[INFO] [stdout] 31 | |             // 1: whole prefix
[INFO] [stdout] 32 | |             // 2: nickname or servername
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |             static ref LINE_REGEXP: Regex = Regex::new(r"(:([^! ]+)(?:!([^@]+)@(\S+))? )?(\w+)(?: (.+))?").unwrap();
[INFO] [stdout] 38 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         lazy_static! {
[INFO] [stdout] 30 | |             // regexp groups
[INFO] [stdout] 31 | |             // 1: whole prefix
[INFO] [stdout] 32 | |             // 2: nickname or servername
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |             static ref LINE_REGEXP: Regex = Regex::new(r"(:([^! ]+)(?:!([^@]+)@(\S+))? )?(\w+)(?: (.+))?").unwrap();
[INFO] [stdout] 38 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         lazy_static! {
[INFO] [stdout] 30 | |             // regexp groups
[INFO] [stdout] 31 | |             // 1: whole prefix
[INFO] [stdout] 32 | |             // 2: nickname or servername
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |             static ref LINE_REGEXP: Regex = Regex::new(r"(:([^! ]+)(?:!([^@]+)@(\S+))? )?(\w+)(?: (.+))?").unwrap();
[INFO] [stdout] 38 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.99s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6dbc953678140f651f28aeba4e415f595153547e1d6ea2bd293ab0bd1fa36832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dbc953678140f651f28aeba4e415f595153547e1d6ea2bd293ab0bd1fa36832", kill_on_drop: false }`
[INFO] [stdout] 6dbc953678140f651f28aeba4e415f595153547e1d6ea2bd293ab0bd1fa36832