[INFO] cloning repository https://github.com/pk1890/io_uring_like_circular_buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pk1890/io_uring_like_circular_buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpk1890%2Fio_uring_like_circular_buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpk1890%2Fio_uring_like_circular_buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5371ba7678cecd67951469d83642a7357afc314
[INFO] checking pk1890/io_uring_like_circular_buffer against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpk1890%2Fio_uring_like_circular_buffer" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pk1890/io_uring_like_circular_buffer on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pk1890/io_uring_like_circular_buffer
[INFO] finished tweaking git repo https://github.com/pk1890/io_uring_like_circular_buffer
[INFO] tweaked toml for git repo https://github.com/pk1890/io_uring_like_circular_buffer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/pk1890/io_uring_like_circular_buffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-valgrind v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a59327b8ca7303868c6e95b26186c8f8ecb759ab3510ed2bb5a6a8785a8692f
[INFO] running `Command { std: "docker" "start" "-a" "8a59327b8ca7303868c6e95b26186c8f8ecb759ab3510ed2bb5a6a8785a8692f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a59327b8ca7303868c6e95b26186c8f8ecb759ab3510ed2bb5a6a8785a8692f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a59327b8ca7303868c6e95b26186c8f8ecb759ab3510ed2bb5a6a8785a8692f", kill_on_drop: false }`
[INFO] [stdout] 8a59327b8ca7303868c6e95b26186c8f8ecb759ab3510ed2bb5a6a8785a8692f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cba326cdeac61a786c3d7beb9b7ec84223fcb33a856f21af98537ded2826ce76
[INFO] running `Command { std: "docker" "start" "-a" "cba326cdeac61a786c3d7beb9b7ec84223fcb33a856f21af98537ded2826ce76", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde-xml-rs v0.3.1
[INFO] [stderr]     Checking cargo-valgrind v1.3.0
[INFO] [stderr]     Checking circular_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `isEmpty` should have a snake case name
[INFO] [stdout]    --> src/main.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn isEmpty(&self) -> bool{
[INFO] [stdout]     |            ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `isEmpty` should have a snake case name
[INFO] [stdout]    --> src/main.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn isEmpty(&self) -> bool{
[INFO] [stdout]     |            ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.52s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cba326cdeac61a786c3d7beb9b7ec84223fcb33a856f21af98537ded2826ce76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba326cdeac61a786c3d7beb9b7ec84223fcb33a856f21af98537ded2826ce76", kill_on_drop: false }`
[INFO] [stdout] cba326cdeac61a786c3d7beb9b7ec84223fcb33a856f21af98537ded2826ce76