[INFO] cloning repository https://github.com/l1h3r/butter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/l1h3r/butter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl1h3r%2Fbutter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl1h3r%2Fbutter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 964ae9639fa50c4591dcf04f10cd0034db72db9e
[INFO] checking l1h3r/butter against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl1h3r%2Fbutter" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/l1h3r/butter on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/l1h3r/butter
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/l1h3r/butter
[INFO] tweaked toml for git repo https://github.com/l1h3r/butter written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/l1h3r/butter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68e9f2061f6f6481309391660c3dc9f2109e4335939ffdadd6ade9adec4f0c60
[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" "68e9f2061f6f6481309391660c3dc9f2109e4335939ffdadd6ade9adec4f0c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e9f2061f6f6481309391660c3dc9f2109e4335939ffdadd6ade9adec4f0c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e9f2061f6f6481309391660c3dc9f2109e4335939ffdadd6ade9adec4f0c60", kill_on_drop: false }`
[INFO] [stdout] 68e9f2061f6f6481309391660c3dc9f2109e4335939ffdadd6ade9adec4f0c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98adabdacbf708a9d27f711307142561397f8968425fd274cc9ce5baa49efc2c
[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" "98adabdacbf708a9d27f711307142561397f8968425fd274cc9ce5baa49efc2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking ring v0.13.5
[INFO] [stderr]     Checking serde_json v1.0.35
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling syn v0.15.25
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking rand v0.6.4
[INFO] [stderr]     Checking tokio-io v0.1.11
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]     Checking crossbeam-channel v0.3.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.10
[INFO] [stderr]     Checking h2 v0.1.15
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking tokio v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking hyper v0.12.20
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.8
[INFO] [stderr]     Checking crow v0.1.0 (https://github.com/l1h3r/crow?rev=5e7890bc5a752be9c59cf1aa058d14d3b11c1e5d#5e7890bc)
[INFO] [stderr]     Checking butter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/youtube/history.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |   static ref NEXT_REGEX: Regex = { Regex::new(r#"data-uix-load-more-href="([^"]+)""#).unwrap() };
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/youtube/history.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |   static ref NEXT_REGEX: Regex = { Regex::new(r#"data-uix-load-more-href="([^"]+)""#).unwrap() };
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.21s
[INFO] running `Command { std: "docker" "inspect" "98adabdacbf708a9d27f711307142561397f8968425fd274cc9ce5baa49efc2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98adabdacbf708a9d27f711307142561397f8968425fd274cc9ce5baa49efc2c", kill_on_drop: false }`
[INFO] [stdout] 98adabdacbf708a9d27f711307142561397f8968425fd274cc9ce5baa49efc2c