[INFO] fetching crate synchronicity 0.0.1...
[INFO] checking synchronicity-0.0.1 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate synchronicity 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate synchronicity 0.0.1 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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-8/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] e1886ecf7a9ec2b1001eb9bbbb9bf451e695c70f1f0d66f23b51715dc2e23888
[INFO] running `Command { std: "docker" "start" "-a" "e1886ecf7a9ec2b1001eb9bbbb9bf451e695c70f1f0d66f23b51715dc2e23888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1886ecf7a9ec2b1001eb9bbbb9bf451e695c70f1f0d66f23b51715dc2e23888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1886ecf7a9ec2b1001eb9bbbb9bf451e695c70f1f0d66f23b51715dc2e23888", kill_on_drop: false }`
[INFO] [stdout] e1886ecf7a9ec2b1001eb9bbbb9bf451e695c70f1f0d66f23b51715dc2e23888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] 8b887a2b95c0fa1bc08338821de11273afd777be2420cf67a94543d169d1cd0b
[INFO] running `Command { std: "docker" "start" "-a" "8b887a2b95c0fa1bc08338821de11273afd777be2420cf67a94543d169d1cd0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking canonical-path v2.0.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking generational-arena v0.2.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking signal-hook v0.1.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking regex v1.3.1
[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 chrono v0.4.10
[INFO] [stderr]     Checking secrecy v0.4.1
[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 1m 08s
[INFO] running `Command { std: "docker" "inspect" "8b887a2b95c0fa1bc08338821de11273afd777be2420cf67a94543d169d1cd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b887a2b95c0fa1bc08338821de11273afd777be2420cf67a94543d169d1cd0b", kill_on_drop: false }`
[INFO] [stdout] 8b887a2b95c0fa1bc08338821de11273afd777be2420cf67a94543d169d1cd0b