[INFO] fetching crate piet-common 0.2.0-pre3...
[INFO] checking piet-common-0.2.0-pre3 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate piet-common 0.2.0-pre3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate piet-common 0.2.0-pre3 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piet-common 0.2.0-pre3
[INFO] finished tweaking crates.io crate piet-common 0.2.0-pre3
[INFO] tweaked toml for crates.io crate piet-common 0.2.0-pre3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate piet-common 0.2.0-pre3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89ced14cd76580865bd584bcbd0505f2b4b01ede719ce0d64a4107cd5d78a9b0
[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" "89ced14cd76580865bd584bcbd0505f2b4b01ede719ce0d64a4107cd5d78a9b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89ced14cd76580865bd584bcbd0505f2b4b01ede719ce0d64a4107cd5d78a9b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ced14cd76580865bd584bcbd0505f2b4b01ede719ce0d64a4107cd5d78a9b0", kill_on_drop: false }`
[INFO] [stdout] 89ced14cd76580865bd584bcbd0505f2b4b01ede719ce0d64a4107cd5d78a9b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f42d17e66dad0f79fa45816e23267fde541a17f0f8395f6165eb0a5eaa9b9fa
[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" "5f42d17e66dad0f79fa45816e23267fde541a17f0f8395f6165eb0a5eaa9b9fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]     Checking piet v0.2.0-pre3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]     Checking piet-cairo v0.2.0-pre3
[INFO] [stderr]     Checking piet-common v0.2.0-pre3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.79s
[INFO] running `Command { std: "docker" "inspect" "5f42d17e66dad0f79fa45816e23267fde541a17f0f8395f6165eb0a5eaa9b9fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f42d17e66dad0f79fa45816e23267fde541a17f0f8395f6165eb0a5eaa9b9fa", kill_on_drop: false }`
[INFO] [stdout] 5f42d17e66dad0f79fa45816e23267fde541a17f0f8395f6165eb0a5eaa9b9fa