[INFO] fetching crate synchronicity 0.0.1...
[INFO] checking synchronicity-0.0.1 against beta for pr-78714
[INFO] extracting crate synchronicity 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate synchronicity 0.0.1 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 synchronicity 0.0.1
[INFO] finished tweaking crates.io crate synchronicity 0.0.1
[INFO] tweaked toml for crates.io crate synchronicity 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate synchronicity 0.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0c95710f8a94c3c948a3bc78a6d47fa0ffab031480492f3911fc77fce138cefc
[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" "0c95710f8a94c3c948a3bc78a6d47fa0ffab031480492f3911fc77fce138cefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c95710f8a94c3c948a3bc78a6d47fa0ffab031480492f3911fc77fce138cefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c95710f8a94c3c948a3bc78a6d47fa0ffab031480492f3911fc77fce138cefc", kill_on_drop: false }`
[INFO] [stdout] 0c95710f8a94c3c948a3bc78a6d47fa0ffab031480492f3911fc77fce138cefc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 646ebd6137eace3af5e187a18ac31a818b7bed312384195cf2ddc3d38b07c233
[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" "646ebd6137eace3af5e187a18ac31a818b7bed312384195cf2ddc3d38b07c233", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stderr]     Checking generational-arena v0.2.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking signal-hook v0.1.12
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling abscissa_derive v0.4.0
[INFO] [stderr]     Checking secrecy v0.4.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking abscissa_core v0.4.0
[INFO] [stderr]     Checking synchronicity v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.54s
[INFO] running `Command { std: "docker" "inspect" "646ebd6137eace3af5e187a18ac31a818b7bed312384195cf2ddc3d38b07c233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646ebd6137eace3af5e187a18ac31a818b7bed312384195cf2ddc3d38b07c233", kill_on_drop: false }`
[INFO] [stdout] 646ebd6137eace3af5e187a18ac31a818b7bed312384195cf2ddc3d38b07c233