[INFO] fetching crate i3-focus-last 0.5.0...
[INFO] checking i3-focus-last-0.5.0 against beta for pr-78714
[INFO] extracting crate i3-focus-last 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate i3-focus-last 0.5.0 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 i3-focus-last 0.5.0
[INFO] finished tweaking crates.io crate i3-focus-last 0.5.0
[INFO] tweaked toml for crates.io crate i3-focus-last 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate i3-focus-last 0.5.0 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] 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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17eca26ca6ec2dcdd244617c3b9d06a9de9ca8f9b21c9157a9c2ea58b331bdee
[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" "17eca26ca6ec2dcdd244617c3b9d06a9de9ca8f9b21c9157a9c2ea58b331bdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17eca26ca6ec2dcdd244617c3b9d06a9de9ca8f9b21c9157a9c2ea58b331bdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17eca26ca6ec2dcdd244617c3b9d06a9de9ca8f9b21c9157a9c2ea58b331bdee", kill_on_drop: false }`
[INFO] [stdout] 17eca26ca6ec2dcdd244617c3b9d06a9de9ca8f9b21c9157a9c2ea58b331bdee
[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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 201335be7f8705c34f5db4158ea261c6d86b8df0ed59d8440d9b669ac294c817
[INFO] running `Command { std: "docker" "start" "-a" "201335be7f8705c34f5db4158ea261c6d86b8df0ed59d8440d9b669ac294c817", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking gumdrop v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking swayipc v2.7.2
[INFO] [stderr]     Checking i3-focus-last v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.38s
[INFO] running `Command { std: "docker" "inspect" "201335be7f8705c34f5db4158ea261c6d86b8df0ed59d8440d9b669ac294c817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201335be7f8705c34f5db4158ea261c6d86b8df0ed59d8440d9b669ac294c817", kill_on_drop: false }`
[INFO] [stdout] 201335be7f8705c34f5db4158ea261c6d86b8df0ed59d8440d9b669ac294c817