[INFO] fetching crate guessing_game_crate 0.1.1...
[INFO] checking guessing_game_crate-0.1.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate guessing_game_crate 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate guessing_game_crate 0.1.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate guessing_game_crate 0.1.1
[INFO] finished tweaking crates.io crate guessing_game_crate 0.1.1
[INFO] tweaked toml for crates.io crate guessing_game_crate 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate guessing_game_crate 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1b470006bd42d6b1bb90350ecfd30b134adde74671e8b30979bd8f983c3d188
[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" "a1b470006bd42d6b1bb90350ecfd30b134adde74671e8b30979bd8f983c3d188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1b470006bd42d6b1bb90350ecfd30b134adde74671e8b30979bd8f983c3d188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b470006bd42d6b1bb90350ecfd30b134adde74671e8b30979bd8f983c3d188", kill_on_drop: false }`
[INFO] [stdout] a1b470006bd42d6b1bb90350ecfd30b134adde74671e8b30979bd8f983c3d188
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39e9142c5d330472e8c32526728b7a57391e8f20a43c05a9dc968bcb703879a4
[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" "39e9142c5d330472e8c32526728b7a57391e8f20a43c05a9dc968bcb703879a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking guessing_game_crate v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "39e9142c5d330472e8c32526728b7a57391e8f20a43c05a9dc968bcb703879a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e9142c5d330472e8c32526728b7a57391e8f20a43c05a9dc968bcb703879a4", kill_on_drop: false }`
[INFO] [stdout] 39e9142c5d330472e8c32526728b7a57391e8f20a43c05a9dc968bcb703879a4
