[INFO] fetching crate piet-cairo 0.3.0...
[INFO] checking piet-cairo-0.3.0 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate piet-cairo 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate piet-cairo 0.3.0 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piet-cairo 0.3.0
[INFO] finished tweaking crates.io crate piet-cairo 0.3.0
[INFO] tweaked toml for crates.io crate piet-cairo 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate piet-cairo 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fa7cf830cf1d0a2153b28b85261dd7db40caa93a59d28ac63882c5ca17279bc
[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" "8fa7cf830cf1d0a2153b28b85261dd7db40caa93a59d28ac63882c5ca17279bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fa7cf830cf1d0a2153b28b85261dd7db40caa93a59d28ac63882c5ca17279bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa7cf830cf1d0a2153b28b85261dd7db40caa93a59d28ac63882c5ca17279bc", kill_on_drop: false }`
[INFO] [stdout] 8fa7cf830cf1d0a2153b28b85261dd7db40caa93a59d28ac63882c5ca17279bc
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffb1120a6e19acb1b2976bc66161057c11c7624be1cf15ef133e48fb78e369a9
[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" "ffb1120a6e19acb1b2976bc66161057c11c7624be1cf15ef133e48fb78e369a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking os_info v3.0.1
[INFO] [stderr]     Checking kurbo v0.7.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking unic-bidi v0.9.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking piet v0.3.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]     Checking piet-cairo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.24s
[INFO] running `Command { std: "docker" "inspect" "ffb1120a6e19acb1b2976bc66161057c11c7624be1cf15ef133e48fb78e369a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb1120a6e19acb1b2976bc66161057c11c7624be1cf15ef133e48fb78e369a9", kill_on_drop: false }`
[INFO] [stdout] ffb1120a6e19acb1b2976bc66161057c11c7624be1cf15ef133e48fb78e369a9