[INFO] fetching crate serbuffer-gen 0.1.1...
[INFO] testing serbuffer-gen-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serbuffer-gen 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serbuffer-gen 0.1.1 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 serbuffer-gen 0.1.1
[INFO] finished tweaking crates.io crate serbuffer-gen 0.1.1
[INFO] tweaked toml for crates.io crate serbuffer-gen 0.1.1 written to /workspace/builds/worker-8/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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e22d4ab958031c927752cbd80f6b47ecd209f81de0eee70cd2f6f2e49acdd6e8
[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" "e22d4ab958031c927752cbd80f6b47ecd209f81de0eee70cd2f6f2e49acdd6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e22d4ab958031c927752cbd80f6b47ecd209f81de0eee70cd2f6f2e49acdd6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22d4ab958031c927752cbd80f6b47ecd209f81de0eee70cd2f6f2e49acdd6e8", kill_on_drop: false }`
[INFO] [stdout] e22d4ab958031c927752cbd80f6b47ecd209f81de0eee70cd2f6f2e49acdd6e8
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86f5154cb7cd4f17b629db58316e592f02fbadf966697aa81d391f1bd9b35a77
[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" "86f5154cb7cd4f17b629db58316e592f02fbadf966697aa81d391f1bd9b35a77", kill_on_drop: false }`
[INFO] [stderr]    Compiling serbuffer-gen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "86f5154cb7cd4f17b629db58316e592f02fbadf966697aa81d391f1bd9b35a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f5154cb7cd4f17b629db58316e592f02fbadf966697aa81d391f1bd9b35a77", kill_on_drop: false }`
[INFO] [stdout] 86f5154cb7cd4f17b629db58316e592f02fbadf966697aa81d391f1bd9b35a77
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 670d9f23f9b88a0f527365e2a5e5801936a32863ad906582e016e480d1671ac3
[INFO] running `Command { std: "docker" "start" "-a" "670d9f23f9b88a0f527365e2a5e5801936a32863ad906582e016e480d1671ac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serbuffer-gen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "670d9f23f9b88a0f527365e2a5e5801936a32863ad906582e016e480d1671ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670d9f23f9b88a0f527365e2a5e5801936a32863ad906582e016e480d1671ac3", kill_on_drop: false }`
[INFO] [stdout] 670d9f23f9b88a0f527365e2a5e5801936a32863ad906582e016e480d1671ac3
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 1f11e337facba0ed2ca45ccf08698eab3005058de0364af19a9001598472b94f
[INFO] running `Command { std: "docker" "start" "-a" "1f11e337facba0ed2ca45ccf08698eab3005058de0364af19a9001598472b94f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serbuffer_gen-0507f5a2164aa591
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::code_gen_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serbuffer_gen
[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" "1f11e337facba0ed2ca45ccf08698eab3005058de0364af19a9001598472b94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f11e337facba0ed2ca45ccf08698eab3005058de0364af19a9001598472b94f", kill_on_drop: false }`
[INFO] [stdout] 1f11e337facba0ed2ca45ccf08698eab3005058de0364af19a9001598472b94f