[INFO] crate qtree 0.1.0 is already in cache
[INFO] extracting crate qtree 0.1.0 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/qtree/0.1.0
[INFO] extracting crate qtree 0.1.0 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/qtree/0.1.0
[INFO] validating manifest of qtree-0.1.0 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of qtree-0.1.0 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing qtree-0.1.0
[INFO] finished frobbing qtree-0.1.0
[INFO] frobbed toml for qtree-0.1.0 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/qtree/0.1.0/Cargo.toml
[INFO] started frobbing qtree-0.1.0
[INFO] finished frobbing qtree-0.1.0
[INFO] frobbed toml for qtree-0.1.0 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/qtree/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking qtree-0.1.0 against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-7/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/qtree/0.1.0:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ca363431c1a7cb18c744f2f80e07224a1ba3757ac9841fd5168aabc28f6c0a9
[INFO] running `"docker" "start" "-a" "8ca363431c1a7cb18c744f2f80e07224a1ba3757ac9841fd5168aabc28f6c0a9"`
[INFO] [stderr]     Checking ogg v0.4.1
[INFO] [stderr]     Checking alga v0.8.2
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]     Checking nalgebra v0.14.4
[INFO] [stderr]     Checking zip v0.3.3
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking lewton v0.5.2
[INFO] [stderr]     Checking rodio v0.7.0
[INFO] [stderr]     Checking nalgebra v0.17.3
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.14.4/src/core/cg.rs:292:44
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Checking gfx_window_sdl v0.8.0
[INFO] [stderr]     Checking gfx_glyph v0.10.2
[INFO] [stderr]     Checking ggez v0.4.4
[INFO] [stderr]     Checking qtree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> examples/circles.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `duplicate`
[INFO] [stderr]   --> examples/circles.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn duplicate(&self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `"docker" "inspect" "8ca363431c1a7cb18c744f2f80e07224a1ba3757ac9841fd5168aabc28f6c0a9"`
[INFO] running `"docker" "rm" "-f" "8ca363431c1a7cb18c744f2f80e07224a1ba3757ac9841fd5168aabc28f6c0a9"`
[INFO] [stdout] 8ca363431c1a7cb18c744f2f80e07224a1ba3757ac9841fd5168aabc28f6c0a9