[INFO] fetching crate mycelium 0.1.1...
[INFO] checking mycelium-0.1.1 against beta for pr-78714
[INFO] extracting crate mycelium 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate mycelium 0.1.1 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 mycelium 0.1.1
[INFO] finished tweaking crates.io crate mycelium 0.1.1
[INFO] tweaked toml for crates.io crate mycelium 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate mycelium 0.1.1 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b76f72738e95eed2ec957ffbe493cf075faaac0d86fc814762c13d7d55ea8823
[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" "b76f72738e95eed2ec957ffbe493cf075faaac0d86fc814762c13d7d55ea8823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b76f72738e95eed2ec957ffbe493cf075faaac0d86fc814762c13d7d55ea8823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76f72738e95eed2ec957ffbe493cf075faaac0d86fc814762c13d7d55ea8823", kill_on_drop: false }`
[INFO] [stdout] b76f72738e95eed2ec957ffbe493cf075faaac0d86fc814762c13d7d55ea8823
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 59c0adcd37ff7cdc073330bdb0843e4e5b941766a550c62ddf0c0ef484d7809e
[INFO] running `Command { std: "docker" "start" "-a" "59c0adcd37ff7cdc073330bdb0843e4e5b941766a550c62ddf0c0ef484d7809e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.6
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking ron v0.4.2
[INFO] [stderr]     Checking mycelium_experimental v0.1.0
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking mycelium_command v0.1.1
[INFO] [stderr]     Checking mycelium_core v0.1.1
[INFO] [stderr]     Checking mycelium_index v0.1.1
[INFO] [stderr]     Checking mycelium_lib v0.1.2
[INFO] [stderr]     Checking mycelium v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.92s
[INFO] running `Command { std: "docker" "inspect" "59c0adcd37ff7cdc073330bdb0843e4e5b941766a550c62ddf0c0ef484d7809e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c0adcd37ff7cdc073330bdb0843e4e5b941766a550c62ddf0c0ef484d7809e", kill_on_drop: false }`
[INFO] [stdout] 59c0adcd37ff7cdc073330bdb0843e4e5b941766a550c62ddf0c0ef484d7809e