[INFO] fetching crate voncount 0.1.0...
[INFO] testing voncount-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate voncount 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate voncount 0.1.0 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 voncount 0.1.0
[INFO] finished tweaking crates.io crate voncount 0.1.0
[INFO] tweaked toml for crates.io crate voncount 0.1.0 written to /workspace/builds/worker-1/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] 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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 155c8e138ca26d70137217c45e7f6991878a1ebb4e541b3171e292153dc03ce5
[INFO] running `Command { std: "docker" "start" "-a" "155c8e138ca26d70137217c45e7f6991878a1ebb4e541b3171e292153dc03ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "155c8e138ca26d70137217c45e7f6991878a1ebb4e541b3171e292153dc03ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "155c8e138ca26d70137217c45e7f6991878a1ebb4e541b3171e292153dc03ce5", kill_on_drop: false }`
[INFO] [stdout] 155c8e138ca26d70137217c45e7f6991878a1ebb4e541b3171e292153dc03ce5
[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=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] 95ca8717e94a012656096ecf5ee26eb6f10a8a2faa05188a747e133e15749ec7
[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" "95ca8717e94a012656096ecf5ee26eb6f10a8a2faa05188a747e133e15749ec7", kill_on_drop: false }`
[INFO] [stderr]    Compiling voncount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "95ca8717e94a012656096ecf5ee26eb6f10a8a2faa05188a747e133e15749ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ca8717e94a012656096ecf5ee26eb6f10a8a2faa05188a747e133e15749ec7", kill_on_drop: false }`
[INFO] [stdout] 95ca8717e94a012656096ecf5ee26eb6f10a8a2faa05188a747e133e15749ec7
[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=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] 54484c7267ea6030956fd428bec480c9868341a6dfaec13182e2c4c05106d332
[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" "54484c7267ea6030956fd428bec480c9868341a6dfaec13182e2c4c05106d332", kill_on_drop: false }`
[INFO] [stderr]    Compiling voncount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "54484c7267ea6030956fd428bec480c9868341a6dfaec13182e2c4c05106d332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54484c7267ea6030956fd428bec480c9868341a6dfaec13182e2c4c05106d332", kill_on_drop: false }`
[INFO] [stdout] 54484c7267ea6030956fd428bec480c9868341a6dfaec13182e2c4c05106d332
[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=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d4405dcc85057dfba1e2bae23aebdf5dee62dc3e3ee26d0f37e90fc0f8f89b7
[INFO] running `Command { std: "docker" "start" "-a" "8d4405dcc85057dfba1e2bae23aebdf5dee62dc3e3ee26d0f37e90fc0f8f89b7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/voncount-e76504054b032dbe
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::write ... ok
[INFO] [stdout] test tests::read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests voncount
[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" "8d4405dcc85057dfba1e2bae23aebdf5dee62dc3e3ee26d0f37e90fc0f8f89b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d4405dcc85057dfba1e2bae23aebdf5dee62dc3e3ee26d0f37e90fc0f8f89b7", kill_on_drop: false }`
[INFO] [stdout] 8d4405dcc85057dfba1e2bae23aebdf5dee62dc3e3ee26d0f37e90fc0f8f89b7