[INFO] cloning repository https://github.com/XingzhiY/calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/XingzhiY/calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXingzhiY%2Fcalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXingzhiY%2Fcalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 572cc5f316b68199a95bd088fa379a69624be78a
[INFO] checking XingzhiY/calculator against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXingzhiY%2Fcalculator" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/XingzhiY/calculator
[INFO] finished tweaking git repo https://github.com/XingzhiY/calculator
[INFO] tweaked toml for git repo https://github.com/XingzhiY/calculator written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/XingzhiY/calculator on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/XingzhiY/calculator 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f314e100f2d876d7621200826f098df1a97f81cc1b9340d37222a6a28ade8554
[INFO] running `Command { std: "docker" "start" "-a" "f314e100f2d876d7621200826f098df1a97f81cc1b9340d37222a6a28ade8554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f314e100f2d876d7621200826f098df1a97f81cc1b9340d37222a6a28ade8554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f314e100f2d876d7621200826f098df1a97f81cc1b9340d37222a6a28ade8554", kill_on_drop: false }`
[INFO] [stdout] f314e100f2d876d7621200826f098df1a97f81cc1b9340d37222a6a28ade8554
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de18983238842c5fd7d5cb7dc51120d1bb63bbfe19ddb0f29a56be2c90790754
[INFO] running `Command { std: "docker" "start" "-a" "de18983238842c5fd7d5cb7dc51120d1bb63bbfe19ddb0f29a56be2c90790754", kill_on_drop: false }`
[INFO] [stderr]     Checking calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn mr_cyclic_two_level(m: i32, c2: f64, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mr_cyclic_one_level` is never used
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn mr_cyclic_one_level(m: i32, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mr_cyclic_two_level` is never used
[INFO] [stdout]   --> src/lib.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn mr_cyclic_two_level(m: i32, c2: f64, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mr_origin` is never used
[INFO] [stdout]   --> src/lib.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn mr_origin(m: i32, c2: i32, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mr_first` is never used
[INFO] [stdout]   --> src/lib.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn mr_first(m: i32, c2: i32, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mr_ancient` is never used
[INFO] [stdout]   --> src/lib.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn mr_ancient(m: i32, c2: i32, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn mr_cyclic_two_level(m: i32, c2: f64, c3: f64, tolerance: f64, max_iter: usize) -> f64 {
[INFO] [stdout]    |                                ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "de18983238842c5fd7d5cb7dc51120d1bb63bbfe19ddb0f29a56be2c90790754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de18983238842c5fd7d5cb7dc51120d1bb63bbfe19ddb0f29a56be2c90790754", kill_on_drop: false }`
[INFO] [stdout] de18983238842c5fd7d5cb7dc51120d1bb63bbfe19ddb0f29a56be2c90790754