[INFO] fetching crate sensehat-screen 0.2.5...
[INFO] checking sensehat-screen-0.2.5 against beta for pr-78714
[INFO] extracting crate sensehat-screen 0.2.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sensehat-screen 0.2.5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sensehat-screen 0.2.5
[INFO] finished tweaking crates.io crate sensehat-screen 0.2.5
[INFO] tweaked toml for crates.io crate sensehat-screen 0.2.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate sensehat-screen 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66a3e2af57cc1e30a90656dd22ffe551ab24da0b3eff4969f05b67847080ed56
[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" "66a3e2af57cc1e30a90656dd22ffe551ab24da0b3eff4969f05b67847080ed56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66a3e2af57cc1e30a90656dd22ffe551ab24da0b3eff4969f05b67847080ed56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a3e2af57cc1e30a90656dd22ffe551ab24da0b3eff4969f05b67847080ed56", kill_on_drop: false }`
[INFO] [stdout] 66a3e2af57cc1e30a90656dd22ffe551ab24da0b3eff4969f05b67847080ed56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6751c547d09b8c60a759a6f3bf2540dcead2dc1095d957458bae90c1bbdce5a4
[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" "6751c547d09b8c60a759a6f3bf2540dcead2dc1095d957458bae90c1bbdce5a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]     Checking font8x8 v0.2.5
[INFO] [stderr]    Compiling sensehat-screen v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking framebuffer v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.83s
[INFO] running `Command { std: "docker" "inspect" "6751c547d09b8c60a759a6f3bf2540dcead2dc1095d957458bae90c1bbdce5a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6751c547d09b8c60a759a6f3bf2540dcead2dc1095d957458bae90c1bbdce5a4", kill_on_drop: false }`
[INFO] [stdout] 6751c547d09b8c60a759a6f3bf2540dcead2dc1095d957458bae90c1bbdce5a4