[INFO] updating cached repository CloneRob/circular_sampler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CloneRob/circular_sampler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CloneRob/circular_sampler" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CloneRob/circular_sampler"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CloneRob/circular_sampler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CloneRob/circular_sampler" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CloneRob/circular_sampler"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CloneRob/circular_sampler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fe6474a6ded12a11cef15f1e46a927d083ab4928
[INFO] sha for GitHub repo CloneRob/circular_sampler: fe6474a6ded12a11cef15f1e46a927d083ab4928
[INFO] validating manifest of CloneRob/circular_sampler on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of CloneRob/circular_sampler on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing CloneRob/circular_sampler
[INFO] finished frobbing CloneRob/circular_sampler
[INFO] frobbed toml for CloneRob/circular_sampler written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CloneRob/circular_sampler/Cargo.toml
[INFO] started frobbing CloneRob/circular_sampler
[INFO] finished frobbing CloneRob/circular_sampler
[INFO] frobbed toml for CloneRob/circular_sampler written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CloneRob/circular_sampler/Cargo.toml
[INFO] crate CloneRob/circular_sampler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking CloneRob/circular_sampler against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CloneRob/circular_sampler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4103fc2016caa7e61c9719dd0cf396796d858a1a059832dfae441c4620598291
[INFO] running `"docker" "start" "-a" "4103fc2016caa7e61c9719dd0cf396796d858a1a059832dfae441c4620598291"`
[INFO] [stderr]     Checking image v0.12.3
[INFO] [stderr]     Checking image_split v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::ffi::OsStr`
[INFO] [stderr]  --> src/argparse/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ffi::OsStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> src/crop/mod.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ffi::OsStr`
[INFO] [stderr]  --> src/argparse/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ffi::OsStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> src/crop/mod.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `source_path`
[INFO] [stderr]    --> src/argparse/mod.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let source_path = if let Some(p) = source_str {
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_source_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `source_path`
[INFO] [stderr]    --> src/argparse/mod.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let source_path = if let Some(p) = source_str {
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_source_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `label_map`
[INFO] [stderr]   --> src/argparse/mod.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     label_map: Option<HashMap<String, String>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `label_map`
[INFO] [stderr]   --> src/argparse/mod.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn label_map(mut self, map: HashMap<String, String>) -> ParamBuilder {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]    --> src/argparse/mod.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn print(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_x`
[INFO] [stderr]   --> src/candidates/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn get_x(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_y`
[INFO] [stderr]   --> src/candidates/mod.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_y(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_int`
[INFO] [stderr]   --> src/candidates/mod.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn to_int(self) -> (i32, i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/candidates/mod.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transform_points`
[INFO] [stderr]   --> src/candidates/mod.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub fn transform_points(points: Vec<Point>, transformer: Point) -> Vec<Point> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `label_map`
[INFO] [stderr]   --> src/argparse/mod.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     label_map: Option<HashMap<String, String>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `label_map`
[INFO] [stderr]   --> src/argparse/mod.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn label_map(mut self, map: HashMap<String, String>) -> ParamBuilder {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]    --> src/argparse/mod.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn print(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_x`
[INFO] [stderr]   --> src/candidates/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn get_x(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_y`
[INFO] [stderr]   --> src/candidates/mod.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_y(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_int`
[INFO] [stderr]   --> src/candidates/mod.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn to_int(self) -> (i32, i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/candidates/mod.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transform_points`
[INFO] [stderr]   --> src/candidates/mod.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub fn transform_points(points: Vec<Point>, transformer: Point) -> Vec<Point> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.26s
[INFO] running `"docker" "inspect" "4103fc2016caa7e61c9719dd0cf396796d858a1a059832dfae441c4620598291"`
[INFO] running `"docker" "rm" "-f" "4103fc2016caa7e61c9719dd0cf396796d858a1a059832dfae441c4620598291"`
[INFO] [stdout] 4103fc2016caa7e61c9719dd0cf396796d858a1a059832dfae441c4620598291