[INFO] cloning repository https://github.com/fzdwx/sperf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fzdwx/sperf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzdwx%2Fsperf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzdwx%2Fsperf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e899a0addf547ab0082cf26f36d60d0aa39d347
[INFO] testing fzdwx/sperf against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzdwx%2Fsperf" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fzdwx/sperf
[INFO] finished tweaking git repo https://github.com/fzdwx/sperf
[INFO] tweaked toml for git repo https://github.com/fzdwx/sperf written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fzdwx/sperf on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fzdwx/sperf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.86
[INFO] [stderr]   Downloaded clap_lex v0.5.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.86
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.86
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.86
[INFO] [stderr]   Downloaded clap v4.3.0
[INFO] [stderr]   Downloaded js-sys v0.3.63
[INFO] [stderr]   Downloaded bumpalo v3.12.2
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.86
[INFO] [stderr]   Downloaded rustix v0.37.19
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307
[INFO] running `Command { std: "docker" "start" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.56
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling chrono v0.4.24
[INFO] [stderr]    Compiling is-terminal v0.4.7
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling clap_builder v4.3.0
[INFO] [stderr]    Compiling clap_derive v4.3.0
[INFO] [stderr]    Compiling clap v4.3.0
[INFO] [stderr]    Compiling sperf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/main.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let mut n = 0;
[INFO] [stdout]    |                             ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 79 |                     n = libc::read(fds[0], buf.as_mut_ptr() as *mut libc::c_void, buf.len());
[INFO] [stdout]    |                     ------------------------------------------------------------------------ `n` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 19.34s
[INFO] running `Command { std: "docker" "inspect" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling sperf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/main.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let mut n = 0;
[INFO] [stdout]    |                             ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 79 |                     n = libc::read(fds[0], buf.as_mut_ptr() as *mut libc::c_void, buf.len());
[INFO] [stdout]    |                     ------------------------------------------------------------------------ `n` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `n` is never read
[INFO] [stderr]   --> src/main.rs:72:29
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut n = 0;
[INFO] [stderr]    |                             ^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 79 |                     n = libc::read(fds[0], buf.as_mut_ptr() as *mut libc::c_void, buf.len());
[INFO] [stderr]    |                     ------------------------------------------------------------------------ `n` is overwritten here before the previous value is read
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sperf` (bin "sperf" test) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/sperf-44d5ee92f606f540)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307", kill_on_drop: false }`
[INFO] [stdout] db978914921c642b2fb15998492f5c12ec16efa48b77001d4f17fbb528e08307
