[INFO] fetching crate autocxx-engine 0.4.0...
[INFO] checking autocxx-engine-0.4.0 against beta for pr-78714
[INFO] extracting crate autocxx-engine 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate autocxx-engine 0.4.0 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 autocxx-engine 0.4.0
[INFO] finished tweaking crates.io crate autocxx-engine 0.4.0
[INFO] tweaked toml for crates.io crate autocxx-engine 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8505f97fc8c1478206e4b57891c6f56f3a4d5036c7a205e7f37786e14a303508
[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" "8505f97fc8c1478206e4b57891c6f56f3a4d5036c7a205e7f37786e14a303508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8505f97fc8c1478206e4b57891c6f56f3a4d5036c7a205e7f37786e14a303508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8505f97fc8c1478206e4b57891c6f56f3a4d5036c7a205e7f37786e14a303508", kill_on_drop: false }`
[INFO] [stdout] 8505f97fc8c1478206e4b57891c6f56f3a4d5036c7a205e7f37786e14a303508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5b994d5d9c3666aa8767d58bb0fa1ca280fdfc206bdfc1154985459553d7fe84
[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" "5b994d5d9c3666aa8767d58bb0fa1ca280fdfc206bdfc1154985459553d7fe84", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling cxxbridge-flags v0.5.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking cc v1.0.62
[INFO] [stderr]     Checking dunce v1.0.1
[INFO] [stderr]     Checking rust_info v0.3.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]    Compiling link-cplusplus v1.0.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling cxx v0.5.9
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling clang-sys v1.0.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking cexpr v0.4.0
[INFO] [stderr]     Checking cxx-gen v0.6.6
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling cxxbridge-macro v0.5.9
[INFO] [stderr]    Compiling test-env-log v0.2.2
[INFO] [stderr]     Checking autocxx-engine v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "5b994d5d9c3666aa8767d58bb0fa1ca280fdfc206bdfc1154985459553d7fe84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b994d5d9c3666aa8767d58bb0fa1ca280fdfc206bdfc1154985459553d7fe84", kill_on_drop: false }`
[INFO] [stdout] 5b994d5d9c3666aa8767d58bb0fa1ca280fdfc206bdfc1154985459553d7fe84