[INFO] fetching crate base_emoji 1.1.0...
[INFO] checking base_emoji-1.1.0 against beta for pr-78714
[INFO] extracting crate base_emoji 1.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate base_emoji 1.1.0 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 base_emoji 1.1.0
[INFO] finished tweaking crates.io crate base_emoji 1.1.0
[INFO] tweaked toml for crates.io crate base_emoji 1.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate base_emoji 1.1.0 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9a39f78f7dfb95c487c0baa3c979960fc61704680a5f8b091f05e83f1387791c
[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" "9a39f78f7dfb95c487c0baa3c979960fc61704680a5f8b091f05e83f1387791c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a39f78f7dfb95c487c0baa3c979960fc61704680a5f8b091f05e83f1387791c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a39f78f7dfb95c487c0baa3c979960fc61704680a5f8b091f05e83f1387791c", kill_on_drop: false }`
[INFO] [stdout] 9a39f78f7dfb95c487c0baa3c979960fc61704680a5f8b091f05e83f1387791c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] b9afc92bcf1633735167722bd60475d7be3ea7e1947b4cca9370b0ef830236af
[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" "b9afc92bcf1633735167722bd60475d7be3ea7e1947b4cca9370b0ef830236af", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling base_emoji v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.02s
[INFO] running `Command { std: "docker" "inspect" "b9afc92bcf1633735167722bd60475d7be3ea7e1947b4cca9370b0ef830236af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9afc92bcf1633735167722bd60475d7be3ea7e1947b4cca9370b0ef830236af", kill_on_drop: false }`
[INFO] [stdout] b9afc92bcf1633735167722bd60475d7be3ea7e1947b4cca9370b0ef830236af