[INFO] fetching crate cargo-mono 0.1.1...
[INFO] checking cargo-mono-0.1.1 against beta for pr-78714
[INFO] extracting crate cargo-mono 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-mono 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 cargo-mono 0.1.1
[INFO] finished tweaking crates.io crate cargo-mono 0.1.1
[INFO] tweaked toml for crates.io crate cargo-mono 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-mono 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a885d7c87cb5a2ffbab1728b8ba7cb36144ebbb1c07ad5fb317138c649f763f
[INFO] running `Command { std: "docker" "start" "-a" "8a885d7c87cb5a2ffbab1728b8ba7cb36144ebbb1c07ad5fb317138c649f763f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a885d7c87cb5a2ffbab1728b8ba7cb36144ebbb1c07ad5fb317138c649f763f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a885d7c87cb5a2ffbab1728b8ba7cb36144ebbb1c07ad5fb317138c649f763f", kill_on_drop: false }`
[INFO] [stdout] 8a885d7c87cb5a2ffbab1728b8ba7cb36144ebbb1c07ad5fb317138c649f763f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b3d16bbd079d9387793f230ec5be8e02d3041d781d60a3e6b749ebef08a483da
[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" "b3d16bbd079d9387793f230ec5be8e02d3041d781d60a3e6b749ebef08a483da", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking tracing v0.1.17
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking anyhow v1.0.32
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]     Checking cargo_metadata v0.11.1
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.7
[INFO] [stderr]     Checking crates_io_api v0.6.1
[INFO] [stderr]     Checking cargo-mono v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "b3d16bbd079d9387793f230ec5be8e02d3041d781d60a3e6b749ebef08a483da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d16bbd079d9387793f230ec5be8e02d3041d781d60a3e6b749ebef08a483da", kill_on_drop: false }`
[INFO] [stdout] b3d16bbd079d9387793f230ec5be8e02d3041d781d60a3e6b749ebef08a483da