[INFO] cloning repository https://github.com/wrongway4you/sierpinski-triangle-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wrongway4you/sierpinski-triangle-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrongway4you%2Fsierpinski-triangle-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrongway4you%2Fsierpinski-triangle-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61d5a631e7a10cb5e0f870cb778cd498be08f6a3
[INFO] checking wrongway4you/sierpinski-triangle-rs against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrongway4you%2Fsierpinski-triangle-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wrongway4you/sierpinski-triangle-rs on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wrongway4you/sierpinski-triangle-rs
[INFO] finished tweaking git repo https://github.com/wrongway4you/sierpinski-triangle-rs
[INFO] tweaked toml for git repo https://github.com/wrongway4you/sierpinski-triangle-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wrongway4you/sierpinski-triangle-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 261882ea5ea0ba7b43c425a1581fb2a594cd723bad7632cbc953af6f418549c5
[INFO] running `Command { std: "docker" "start" "-a" "261882ea5ea0ba7b43c425a1581fb2a594cd723bad7632cbc953af6f418549c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "261882ea5ea0ba7b43c425a1581fb2a594cd723bad7632cbc953af6f418549c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261882ea5ea0ba7b43c425a1581fb2a594cd723bad7632cbc953af6f418549c5", kill_on_drop: false }`
[INFO] [stdout] 261882ea5ea0ba7b43c425a1581fb2a594cd723bad7632cbc953af6f418549c5
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ac0cbfe4e82c7971f5f3e5ffc9cafaf87fdf3291574954657e9d992b23dd74c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4ac0cbfe4e82c7971f5f3e5ffc9cafaf87fdf3291574954657e9d992b23dd74c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking gif v0.9.1
[INFO] [stderr]     Checking deflate v0.7.11
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.6.0
[INFO] [stderr]     Checking clap v2.25.0
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking rayon v0.7.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.12
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking sierpinski-triangle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.40s
[INFO] running `Command { std: "docker" "inspect" "4ac0cbfe4e82c7971f5f3e5ffc9cafaf87fdf3291574954657e9d992b23dd74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac0cbfe4e82c7971f5f3e5ffc9cafaf87fdf3291574954657e9d992b23dd74c", kill_on_drop: false }`
[INFO] [stdout] 4ac0cbfe4e82c7971f5f3e5ffc9cafaf87fdf3291574954657e9d992b23dd74c