[INFO] updating cached repository https://github.com/kamicut/rust-fractal-experiments
[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] afa741af34b8c345ec77b53ef570fd47d86b296c
[INFO] checking kamicut/rust-fractal-experiments against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamicut%2Frust-fractal-experiments" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamicut/rust-fractal-experiments on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kamicut/rust-fractal-experiments
[INFO] finished tweaking git repo https://github.com/kamicut/rust-fractal-experiments
[INFO] tweaked toml for git repo https://github.com/kamicut/rust-fractal-experiments written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kamicut/rust-fractal-experiments already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a88c6574d1531ddb3241f3fd05804c3e9f40b0467f54441c06119de665bd392e
[INFO] running `"docker" "start" "-a" "a88c6574d1531ddb3241f3fd05804c3e9f40b0467f54441c06119de665bd392e"`
[INFO] [stderr]     Checking piston-texture v0.3.0
[INFO] [stderr]     Checking draw_state v0.3.0
[INFO] [stderr]    Compiling freetype-sys v0.3.1
[INFO] [stderr]     Checking pistoncore-input v0.8.1
[INFO] [stderr]     Checking png v0.4.3
[INFO] [stderr]    Compiling glutin v0.4.9
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking piston2d-graphics v0.15.0
[INFO] [stderr]     Checking gfx_core v0.1.2
[INFO] [stderr]     Checking freetype-rs v0.5.0
[INFO] [stderr]     Checking image v0.7.2
[INFO] [stderr]     Checking pistoncore-window v0.15.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.18.0
[INFO] [stderr]     Checking piston v0.18.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.21.0
[INFO] [stderr]     Checking gfx v0.9.1
[INFO] [stderr]     Checking gfx_device_gl v0.8.2
[INFO] [stderr]     Checking piston-gfx_texture v0.10.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.23.1
[INFO] [stderr]     Checking piston_window v0.38.0
[INFO] [stderr]     Checking rust-fractal-experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.99s
[INFO] running `"docker" "inspect" "a88c6574d1531ddb3241f3fd05804c3e9f40b0467f54441c06119de665bd392e"`
[INFO] running `"docker" "rm" "-f" "a88c6574d1531ddb3241f3fd05804c3e9f40b0467f54441c06119de665bd392e"`
[INFO] [stdout] a88c6574d1531ddb3241f3fd05804c3e9f40b0467f54441c06119de665bd392e