[INFO] fetching crate cxx-symbols 0.4.3...
[INFO] testing cxx-symbols-0.4.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cxx-symbols 0.4.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cxx-symbols 0.4.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-symbols 0.4.3
[INFO] finished tweaking crates.io crate cxx-symbols 0.4.3
[INFO] tweaked toml for crates.io crate cxx-symbols 0.4.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd20a7c53494ab49c9c28cf785f53857fcb17555fee0de577a04b3bf612c2ce
[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" "4fd20a7c53494ab49c9c28cf785f53857fcb17555fee0de577a04b3bf612c2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd20a7c53494ab49c9c28cf785f53857fcb17555fee0de577a04b3bf612c2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd20a7c53494ab49c9c28cf785f53857fcb17555fee0de577a04b3bf612c2ce", kill_on_drop: false }`
[INFO] [stdout] 4fd20a7c53494ab49c9c28cf785f53857fcb17555fee0de577a04b3bf612c2ce
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f34c19e459f252139d4cb99e8dc6e46dba4f3e7f9a4a0f0e61e4e1d96fa759d2
[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" "f34c19e459f252139d4cb99e8dc6e46dba4f3e7f9a4a0f0e61e4e1d96fa759d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cxx-symbols v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "f34c19e459f252139d4cb99e8dc6e46dba4f3e7f9a4a0f0e61e4e1d96fa759d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34c19e459f252139d4cb99e8dc6e46dba4f3e7f9a4a0f0e61e4e1d96fa759d2", kill_on_drop: false }`
[INFO] [stdout] f34c19e459f252139d4cb99e8dc6e46dba4f3e7f9a4a0f0e61e4e1d96fa759d2
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c02d1a85c8a6ed0f27d1345ca57a3dd35dcd9d48f9b9a92f4643a2db1ee038d8
[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" "c02d1a85c8a6ed0f27d1345ca57a3dd35dcd9d48f9b9a92f4643a2db1ee038d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cxx-symbols v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "c02d1a85c8a6ed0f27d1345ca57a3dd35dcd9d48f9b9a92f4643a2db1ee038d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02d1a85c8a6ed0f27d1345ca57a3dd35dcd9d48f9b9a92f4643a2db1ee038d8", kill_on_drop: false }`
[INFO] [stdout] c02d1a85c8a6ed0f27d1345ca57a3dd35dcd9d48f9b9a92f4643a2db1ee038d8
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1735064a2537b4f351b19846749c87fa2d2d77f85aacb8f1a14bdaf269e500e3
[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" "1735064a2537b4f351b19846749c87fa2d2d77f85aacb8f1a14bdaf269e500e3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/symbols-1aac6b5f9a269af3
[INFO] [stderr]    Doc-tests symbols
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1735064a2537b4f351b19846749c87fa2d2d77f85aacb8f1a14bdaf269e500e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1735064a2537b4f351b19846749c87fa2d2d77f85aacb8f1a14bdaf269e500e3", kill_on_drop: false }`
[INFO] [stdout] 1735064a2537b4f351b19846749c87fa2d2d77f85aacb8f1a14bdaf269e500e3