[INFO] cloning repository https://github.com/archification/guac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archification/guac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchification%2Fguac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchification%2Fguac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f207f955f44134fe94fddd42e1e3b0f6a8172c18
[INFO] testing archification/guac against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchification%2Fguac" "/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/archification/guac on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archification/guac
[INFO] finished tweaking git repo https://github.com/archification/guac
[INFO] tweaked toml for git repo https://github.com/archification/guac written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/archification/guac already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rouler v0.2.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44b3c538ee67645944103757cd7ac328ed56f37fb86246c7d51ed7ce7a752fcd
[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" "44b3c538ee67645944103757cd7ac328ed56f37fb86246c7d51ed7ce7a752fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44b3c538ee67645944103757cd7ac328ed56f37fb86246c7d51ed7ce7a752fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b3c538ee67645944103757cd7ac328ed56f37fb86246c7d51ed7ce7a752fcd", kill_on_drop: false }`
[INFO] [stdout] 44b3c538ee67645944103757cd7ac328ed56f37fb86246c7d51ed7ce7a752fcd
[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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f346a37a49b344956b11f0afd43f48e07d054744cd8166fb90370259c22b568f
[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" "f346a37a49b344956b11f0afd43f48e07d054744cd8166fb90370259c22b568f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling flate2 v1.0.16
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling crossterm v0.17.5
[INFO] [stderr]    Compiling rouler v0.2.1
[INFO] [stderr]    Compiling tungstenite v0.9.2
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling webpki-roots v0.18.0
[INFO] [stderr]    Compiling rustls v0.16.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-rustls v0.13.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling command_attr v0.2.0
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling hyper v0.13.6
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.12
[INFO] [stderr]    Compiling hyper-rustls v0.20.0
[INFO] [stderr]    Compiling reqwest v0.10.6
[INFO] [stderr]    Compiling serenity v0.8.6
[INFO] [stderr]    Compiling guac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]   --> src/commands/nsfw.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let one = args.single::<i32>().unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `args` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/commands/nsfw.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 9  | fn edge(ctx: &mut Context, msg: &Message, args: Args) -> CommandResult {
[INFO] [stdout]    |                                           ---- help: consider changing this to be mutable: `mut args`
[INFO] [stdout] 10 |     let one = args.single::<i32>().unwrap();
[INFO] [stdout]    |               ^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guac`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f346a37a49b344956b11f0afd43f48e07d054744cd8166fb90370259c22b568f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f346a37a49b344956b11f0afd43f48e07d054744cd8166fb90370259c22b568f", kill_on_drop: false }`
[INFO] [stdout] f346a37a49b344956b11f0afd43f48e07d054744cd8166fb90370259c22b568f
