[INFO] fetching crate crdts 4.2.0...
[INFO] checking crdts-4.2.0 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate crdts 4.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate crdts 4.2.0 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crdts 4.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate crdts 4.2.0
[INFO] tweaked toml for crates.io crate crdts 4.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate crdts 4.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a21aa706d1bd2adcc27f1489f7ffbfb0457f47cd55206d7e4ca77d0926fd03a
[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" "2a21aa706d1bd2adcc27f1489f7ffbfb0457f47cd55206d7e4ca77d0926fd03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a21aa706d1bd2adcc27f1489f7ffbfb0457f47cd55206d7e4ca77d0926fd03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a21aa706d1bd2adcc27f1489f7ffbfb0457f47cd55206d7e4ca77d0926fd03a", kill_on_drop: false }`
[INFO] [stdout] 2a21aa706d1bd2adcc27f1489f7ffbfb0457f47cd55206d7e4ca77d0926fd03a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d3224fd5e4f2b1edc4abd370db1d3d56ee6960dc0283b2d9e29d3f936742adc
[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" "8d3224fd5e4f2b1edc4abd370db1d3d56ee6960dc0283b2d9e29d3f936742adc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling derive_more v0.99.9
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking crdts v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.81s
[INFO] running `Command { std: "docker" "inspect" "8d3224fd5e4f2b1edc4abd370db1d3d56ee6960dc0283b2d9e29d3f936742adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3224fd5e4f2b1edc4abd370db1d3d56ee6960dc0283b2d9e29d3f936742adc", kill_on_drop: false }`
[INFO] [stdout] 8d3224fd5e4f2b1edc4abd370db1d3d56ee6960dc0283b2d9e29d3f936742adc