[INFO] updating cached repository lucarlig/rust_by_example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lucarlig/rust_by_example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lucarlig/rust_by_example" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lucarlig/rust_by_example" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lucarlig/rust_by_example"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lucarlig/rust_by_example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ee5baf85274103676d95718ae67209bfdc54a24
[INFO] sha for GitHub repo lucarlig/rust_by_example: 1ee5baf85274103676d95718ae67209bfdc54a24
[INFO] validating manifest of lucarlig/rust_by_example on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lucarlig/rust_by_example on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lucarlig/rust_by_example
[INFO] finished frobbing lucarlig/rust_by_example
[INFO] frobbed toml for lucarlig/rust_by_example written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example/Cargo.toml
[INFO] started frobbing lucarlig/rust_by_example
[INFO] finished frobbing lucarlig/rust_by_example
[INFO] frobbed toml for lucarlig/rust_by_example written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/lucarlig/rust_by_example/Cargo.toml
[INFO] crate lucarlig/rust_by_example has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lucarlig/rust_by_example against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 777c9c5e34323572f47dd72e9311e6461d4b8b4cabbd06f093e4376a71b48bb6
[INFO] running `"docker" "start" "-a" "777c9c5e34323572f47dd72e9311e6461d4b8b4cabbd06f093e4376a71b48bb6"`
[INFO] [stderr]    Compiling study_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rect`
[INFO] [stderr]   --> src/main.rs:22:14
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn rect_area(rect: Rectangle) {
[INFO] [stderr]    |              ^^^^ help: consider prefixing with an underscore: `_rect`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> src/main.rs:27:11
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    |           ^^^^^ help: consider prefixing with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `float`
[INFO] [stderr]   --> src/main.rs:27:25
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_float`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rect_area`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn rect_area(rect: Rectangle) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "777c9c5e34323572f47dd72e9311e6461d4b8b4cabbd06f093e4376a71b48bb6"`
[INFO] running `"docker" "rm" "-f" "777c9c5e34323572f47dd72e9311e6461d4b8b4cabbd06f093e4376a71b48bb6"`
[INFO] [stdout] 777c9c5e34323572f47dd72e9311e6461d4b8b4cabbd06f093e4376a71b48bb6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7e1981229ddfe02a73ff3df704eabfb16246ed820dc74677cfc0099b9c015c32
[INFO] running `"docker" "start" "-a" "7e1981229ddfe02a73ff3df704eabfb16246ed820dc74677cfc0099b9c015c32"`
[INFO] [stderr]    Compiling study_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rect`
[INFO] [stderr]   --> src/main.rs:22:14
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn rect_area(rect: Rectangle) {
[INFO] [stderr]    |              ^^^^ help: consider prefixing with an underscore: `_rect`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> src/main.rs:27:11
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    |           ^^^^^ help: consider prefixing with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `float`
[INFO] [stderr]   --> src/main.rs:27:25
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_float`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rect_area`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn rect_area(rect: Rectangle) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn square(point: Point, float: f32) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "7e1981229ddfe02a73ff3df704eabfb16246ed820dc74677cfc0099b9c015c32"`
[INFO] running `"docker" "rm" "-f" "7e1981229ddfe02a73ff3df704eabfb16246ed820dc74677cfc0099b9c015c32"`
[INFO] [stdout] 7e1981229ddfe02a73ff3df704eabfb16246ed820dc74677cfc0099b9c015c32
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/lucarlig/rust_by_example:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 1552e24323012e42e4fe0b29337b2f5bc025f87aaf553ad5ae2933d443d69f9b
[INFO] running `"docker" "start" "-a" "1552e24323012e42e4fe0b29337b2f5bc025f87aaf553ad5ae2933d443d69f9b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/study_rust-de2b6988c9a5762e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1552e24323012e42e4fe0b29337b2f5bc025f87aaf553ad5ae2933d443d69f9b"`
[INFO] running `"docker" "rm" "-f" "1552e24323012e42e4fe0b29337b2f5bc025f87aaf553ad5ae2933d443d69f9b"`
[INFO] [stdout] 1552e24323012e42e4fe0b29337b2f5bc025f87aaf553ad5ae2933d443d69f9b