[INFO] updating cached repository https://github.com/geropl/rust-turtle-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26914b4423107d7cae8387e8a540dc8ca40f5e18
[INFO] checking geropl/rust-turtle-example against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeropl%2Frust-turtle-example" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/geropl/rust-turtle-example on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/geropl/rust-turtle-example
[INFO] finished tweaking git repo https://github.com/geropl/rust-turtle-example
[INFO] tweaked toml for git repo https://github.com/geropl/rust-turtle-example written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/geropl/rust-turtle-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (turtle) specification is ambiguous. Only one of `branch`, `tag` or `rev` is allowed. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8abfaa7bae0b8813db6af33e3c8cf063436a14bd8ab93c3d1921f3f7e7e81ae7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8abfaa7bae0b8813db6af33e3c8cf063436a14bd8ab93c3d1921f3f7e7e81ae7"`
[INFO] [stderr] warning: dependency (turtle) specification is ambiguous. Only one of `branch`, `tag` or `rev` is allowed. This will be considered an error in future versions
[INFO] [stderr]     Checking svg v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking rayon-core v1.6.1
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking piston-gfx_texture v0.40.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.66.0
[INFO] [stderr]     Checking pistoncore-input v0.28.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.63.0
[INFO] [stderr]     Checking piston v0.49.0
[INFO] [stderr]     Checking piston_window v0.105.0
[INFO] [stderr]     Checking turtle v1.0.0-rc.3 (https://github.com/sunjay/turtle#58fcb50b)
[INFO] [stderr]     Checking rust-turtle-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `"docker" "inspect" "8abfaa7bae0b8813db6af33e3c8cf063436a14bd8ab93c3d1921f3f7e7e81ae7"`
[INFO] running `"docker" "rm" "-f" "8abfaa7bae0b8813db6af33e3c8cf063436a14bd8ab93c3d1921f3f7e7e81ae7"`
[INFO] [stdout] 8abfaa7bae0b8813db6af33e3c8cf063436a14bd8ab93c3d1921f3f7e7e81ae7