[INFO] cloning repository https://github.com/youkchan/prg_bitcoin_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/youkchan/prg_bitcoin_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoukchan%2Fprg_bitcoin_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoukchan%2Fprg_bitcoin_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2568354efd32f44289030bb96b88e0180788d9c
[INFO] checking youkchan/prg_bitcoin_rust against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoukchan%2Fprg_bitcoin_rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/youkchan/prg_bitcoin_rust
[INFO] finished tweaking git repo https://github.com/youkchan/prg_bitcoin_rust
[INFO] tweaked toml for git repo https://github.com/youkchan/prg_bitcoin_rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/youkchan/prg_bitcoin_rust on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/youkchan/prg_bitcoin_rust 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 089e411b74c13cfc7c494bf12f49bd97b3c796bb7a560aa6a099a7fcf3f672f2
[INFO] running `Command { std: "docker" "start" "-a" "089e411b74c13cfc7c494bf12f49bd97b3c796bb7a560aa6a099a7fcf3f672f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "089e411b74c13cfc7c494bf12f49bd97b3c796bb7a560aa6a099a7fcf3f672f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089e411b74c13cfc7c494bf12f49bd97b3c796bb7a560aa6a099a7fcf3f672f2", kill_on_drop: false }`
[INFO] [stdout] 089e411b74c13cfc7c494bf12f49bd97b3c796bb7a560aa6a099a7fcf3f672f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73ccd7e0db0443c3b92d9d1c5b72195bb99fb052a592e450b9065a90771165f5
[INFO] running `Command { std: "docker" "start" "-a" "73ccd7e0db0443c3b92d9d1c5b72195bb99fb052a592e450b9065a90771165f5", kill_on_drop: false }`
[INFO] [stderr]     Checking prg_bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/ecc.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         for n in 2..=new_exp {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/ecc.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         for n in 2..=new_exp {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let d = ecc::FieldElement::new(9, 10);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unwrap_point2`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let unwrap_point2 = point2.unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_point2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unwrap_point3`
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let unwrap_point3 = point3.unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_point3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `equal`, `add`, and `mul` are never used
[INFO] [stdout]   --> src/ecc.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl FieldElement {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn equal(&self, other:FieldElement) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn add(&self, other:FieldElement ) -> Result<FieldElement, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn mul(&self, other:FieldElement) -> Result<FieldElement, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `equal` is never used
[INFO] [stdout]   --> src/ecc.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Point {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn equal(&self, other:Point) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let d = ecc::FieldElement::new(9, 10);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unwrap_point2`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let unwrap_point2 = point2.unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_point2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unwrap_point3`
[INFO] [stdout]   --> src/main.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let unwrap_point3 = point3.unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_point3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `equal`, `add`, and `mul` are never used
[INFO] [stdout]   --> src/ecc.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl FieldElement {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn equal(&self, other:FieldElement) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn add(&self, other:FieldElement ) -> Result<FieldElement, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn mul(&self, other:FieldElement) -> Result<FieldElement, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `equal` is never used
[INFO] [stdout]   --> src/ecc.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Point {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn equal(&self, other:Point) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "73ccd7e0db0443c3b92d9d1c5b72195bb99fb052a592e450b9065a90771165f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73ccd7e0db0443c3b92d9d1c5b72195bb99fb052a592e450b9065a90771165f5", kill_on_drop: false }`
[INFO] [stdout] 73ccd7e0db0443c3b92d9d1c5b72195bb99fb052a592e450b9065a90771165f5