[INFO] cloning repository https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswataswayam-14%2FHorizontal-and-vertical-scaling-nodejs-apps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswataswayam-14%2FHorizontal-and-vertical-scaling-nodejs-apps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6c667707b684f255d01986569ff55bce38e9c0d
[INFO] checking swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps against try#9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswataswayam-14%2FHorizontal-and-vertical-scaling-nodejs-apps" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps
[INFO] finished tweaking git repo https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps
[INFO] tweaked toml for git repo https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps on toolchain 9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swataswayam-14/Horizontal-and-vertical-scaling-nodejs-apps 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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b77b1009eafc1b49a57d7d32fb3e91156d10991ac6ef693ba7f5134cc13d3a7
[INFO] running `Command { std: "docker" "start" "-a" "7b77b1009eafc1b49a57d7d32fb3e91156d10991ac6ef693ba7f5134cc13d3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b77b1009eafc1b49a57d7d32fb3e91156d10991ac6ef693ba7f5134cc13d3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b77b1009eafc1b49a57d7d32fb3e91156d10991ac6ef693ba7f5134cc13d3a7", kill_on_drop: false }`
[INFO] [stdout] 7b77b1009eafc1b49a57d7d32fb3e91156d10991ac6ef693ba7f5134cc13d3a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a6ce7cbd4b76856569a480d32775d59007217b97348d1c8e4bf90c26ba3bc4
[INFO] running `Command { std: "docker" "start" "-a" "18a6ce7cbd4b76856569a480d32775d59007217b97348d1c8e4bf90c26ba3bc4", kill_on_drop: false }`
[INFO] [stderr]     Checking verticalscaling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |             let mut counter: f64 = 0.00;
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_counter` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]  --> src/main.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |                 counter+=0.0001;
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |             let mut counter: f64 = 0.00;
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_counter` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `counter` is never read
[INFO] [stdout]  --> src/main.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |                 counter+=0.0001;
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "18a6ce7cbd4b76856569a480d32775d59007217b97348d1c8e4bf90c26ba3bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a6ce7cbd4b76856569a480d32775d59007217b97348d1c8e4bf90c26ba3bc4", kill_on_drop: false }`
[INFO] [stdout] 18a6ce7cbd4b76856569a480d32775d59007217b97348d1c8e4bf90c26ba3bc4