[INFO] cloning repository https://github.com/DeShuiYu/onebrc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeShuiYu/onebrc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeShuiYu%2Fonebrc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeShuiYu%2Fonebrc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1477565e75b146d00c4f7dfbd9fa2ce6d1d5472
[INFO] checking DeShuiYu/onebrc-rs/b1477565e75b146d00c4f7dfbd9fa2ce6d1d5472 against 0b63defc8fd68957c635fe61f097b84df8fd9611 for pr-154715
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeShuiYu%2Fonebrc-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DeShuiYu/onebrc-rs
[INFO] finished tweaking git repo https://github.com/DeShuiYu/onebrc-rs
[INFO] tweaked toml for git repo https://github.com/DeShuiYu/onebrc-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DeShuiYu/onebrc-rs on toolchain 0b63defc8fd68957c635fe61f097b84df8fd9611
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DeShuiYu/onebrc-rs 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" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/djc/hashlink`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.10.0-rc.0
[INFO] [stderr]   Downloaded chacha20 v0.10.0-rc.2
[INFO] [stderr]   Downloaded rand_distr v0.6.0-rc.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794
[INFO] running `Command { std: "docker" "start" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794", 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" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794" "/opt/rustwide/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794" "/opt/rustwide/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking hashbrown v0.16.0
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking chacha20 v0.10.0-rc.2
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking rand v0.10.0-rc.0
[INFO] [stderr]     Checking hashlink v0.11.0 (https://github.com/djc/hashlink#b5b2fe08)
[INFO] [stderr]     Checking rand_distr v0.6.0-rc.0
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking onebrc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rand_measurement`
[INFO] [stdout]    --> src/create_measurements.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |         let rand_measurement = if let Ok(e)= rand_station.measurement(){e}else { continue };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_measurement`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, Read};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, Read};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/create_measurements.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |         buf_writer.write_all(format!("{};{}\n",rand_station.id,rand_station.mean_temperature).as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 466 |         let _ = buf_writer.write_all(format!("{};{}\n",rand_station.id,rand_station.mean_temperature).as_bytes());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_measurement`
[INFO] [stdout]    --> src/create_measurements.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |         let rand_measurement = if let Ok(e)= rand_station.measurement(){e}else { continue };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_measurement`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/create_measurements.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |         buf_writer.write_all(format!("{};{}\n",rand_station.id,rand_station.mean_temperature).as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 466 |         let _ = buf_writer.write_all(format!("{};{}\n",rand_station.id,rand_station.mean_temperature).as_bytes());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.32s
[INFO] running `Command { std: "docker" "inspect" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794", kill_on_drop: false }`
[INFO] [stdout] c1be5a3341d984bb6acddf663872558a4eeb21664b74428395c5cc403c680794
