[INFO] cloning repository https://github.com/Jett59/derivative-finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jett59/derivative-finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbac3cd8184f57a436f96aa1be231f660e8a49c4
[INFO] checking Jett59/derivative-finder/dbac3cd8184f57a436f96aa1be231f660e8a49c4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jett59/derivative-finder on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jett59/derivative-finder
[INFO] finished tweaking git repo https://github.com/Jett59/derivative-finder
[INFO] tweaked toml for git repo https://github.com/Jett59/derivative-finder written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jett59/derivative-finder 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bf8d52188a663088233aae88ca816ae0520baf1094ca5df6c7fde67c0f87fba
[INFO] running `Command { std: "docker" "start" "-a" "9bf8d52188a663088233aae88ca816ae0520baf1094ca5df6c7fde67c0f87fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bf8d52188a663088233aae88ca816ae0520baf1094ca5df6c7fde67c0f87fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bf8d52188a663088233aae88ca816ae0520baf1094ca5df6c7fde67c0f87fba", kill_on_drop: false }`
[INFO] [stdout] 9bf8d52188a663088233aae88ca816ae0520baf1094ca5df6c7fde67c0f87fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b9b66e2e42267b04b0e06a1c210b7faab3aade03e1a92fa529c0bf5614ae6b
[INFO] running `Command { std: "docker" "start" "-a" "d7b9b66e2e42267b04b0e06a1c210b7faab3aade03e1a92fa529c0bf5614ae6b", kill_on_drop: false }`
[INFO] [stderr]     Checking derivative-finder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `with_id`, `new`, `assign`, `unset`, `id`, and `as_value` are never used
[INFO] [stdout]   --> src/value.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Variable {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn with_id(id: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn assign(&self, value: f64) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn unset(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn id(&self) -> usize {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn as_value(self) -> Value {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `unset` and `id` are never used
[INFO] [stdout]   --> src/value.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Variable {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn unset(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn id(&self) -> usize {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "d7b9b66e2e42267b04b0e06a1c210b7faab3aade03e1a92fa529c0bf5614ae6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b9b66e2e42267b04b0e06a1c210b7faab3aade03e1a92fa529c0bf5614ae6b", kill_on_drop: false }`
[INFO] [stdout] d7b9b66e2e42267b04b0e06a1c210b7faab3aade03e1a92fa529c0bf5614ae6b