[INFO] cloning repository https://github.com/whostolemyhat/snowflakes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whostolemyhat/snowflakes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhostolemyhat%2Fsnowflakes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhostolemyhat%2Fsnowflakes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 583546befdc15b4b1a7d65b472f4751b0ca07013
[INFO] checking whostolemyhat/snowflakes against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhostolemyhat%2Fsnowflakes" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whostolemyhat/snowflakes on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whostolemyhat/snowflakes
[INFO] finished tweaking git repo https://github.com/whostolemyhat/snowflakes
[INFO] tweaked toml for git repo https://github.com/whostolemyhat/snowflakes written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/whostolemyhat/snowflakes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.11
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded lazy_static v1.0.1
[INFO] [stderr]   Downloaded glib-sys v0.5.0
[INFO] [stderr]   Downloaded cairo-sys-rs v0.5.0
[INFO] [stderr]   Downloaded c_vec v1.2.1
[INFO] [stderr]   Downloaded cairo-rs v0.3.0
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded gobject-sys v0.5.0
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded glib v0.4.1
[INFO] [stderr]   Downloaded libc v0.2.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1237a1e1804a92c703667be042bddfacd5128060076186cb2f36d732926b0a37
[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" "1237a1e1804a92c703667be042bddfacd5128060076186cb2f36d732926b0a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1237a1e1804a92c703667be042bddfacd5128060076186cb2f36d732926b0a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1237a1e1804a92c703667be042bddfacd5128060076186cb2f36d732926b0a37", kill_on_drop: false }`
[INFO] [stdout] 1237a1e1804a92c703667be042bddfacd5128060076186cb2f36d732926b0a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2b6d6bc2aa54dd5653c055523cdecbe5d2c96acc4232dc3c786da2a369541a
[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" "ff2b6d6bc2aa54dd5653c055523cdecbe5d2c96acc4232dc3c786da2a369541a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]     Checking c_vec v1.2.1
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking glib v0.4.1
[INFO] [stderr]     Checking snowflake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.37s
[INFO] running `Command { std: "docker" "inspect" "ff2b6d6bc2aa54dd5653c055523cdecbe5d2c96acc4232dc3c786da2a369541a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2b6d6bc2aa54dd5653c055523cdecbe5d2c96acc4232dc3c786da2a369541a", kill_on_drop: false }`
[INFO] [stdout] ff2b6d6bc2aa54dd5653c055523cdecbe5d2c96acc4232dc3c786da2a369541a