[INFO] cloning repository https://github.com/caldwell/http-log-to-statsd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/caldwell/http-log-to-statsd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaldwell%2Fhttp-log-to-statsd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaldwell%2Fhttp-log-to-statsd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] edfe746898eb08df083bbe37790808df39c3d165
[INFO] checking caldwell/http-log-to-statsd against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaldwell%2Fhttp-log-to-statsd" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caldwell/http-log-to-statsd 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/caldwell/http-log-to-statsd
[INFO] finished tweaking git repo https://github.com/caldwell/http-log-to-statsd
[INFO] tweaked toml for git repo https://github.com/caldwell/http-log-to-statsd written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/caldwell/http-log-to-statsd 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cadence v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 166bf3ba3c4237c351000cba97751b2c730726a2bab6d7ec5a220f72a4720efd
[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" "166bf3ba3c4237c351000cba97751b2c730726a2bab6d7ec5a220f72a4720efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "166bf3ba3c4237c351000cba97751b2c730726a2bab6d7ec5a220f72a4720efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166bf3ba3c4237c351000cba97751b2c730726a2bab6d7ec5a220f72a4720efd", kill_on_drop: false }`
[INFO] [stdout] 166bf3ba3c4237c351000cba97751b2c730726a2bab6d7ec5a220f72a4720efd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3ea6df79f747fae0a41ffd4fba3e13406751f03e8017684e11f2d6e00d27425f
[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" "3ea6df79f747fae0a41ffd4fba3e13406751f03e8017684e11f2d6e00d27425f", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking cadence v0.8.2
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking http-log-to-statsd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> http-log-to-statsd.rs:124:36
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let (pred, ifcase, mut elsecase) = (x[0], x[1], if x.len() == 3 {x[2]} else {""});
[INFO] [stdout]     |                                    ----^^^^^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> http-log-to-statsd.rs:124:36
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let (pred, ifcase, mut elsecase) = (x[0], x[1], if x.len() == 3 {x[2]} else {""});
[INFO] [stdout]     |                                    ----^^^^^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "3ea6df79f747fae0a41ffd4fba3e13406751f03e8017684e11f2d6e00d27425f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea6df79f747fae0a41ffd4fba3e13406751f03e8017684e11f2d6e00d27425f", kill_on_drop: false }`
[INFO] [stdout] 3ea6df79f747fae0a41ffd4fba3e13406751f03e8017684e11f2d6e00d27425f