[INFO] fetching crate undo 0.42.3...
[INFO] testing undo-0.42.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate undo 0.42.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate undo 0.42.3 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 undo 0.42.3
[INFO] finished tweaking crates.io crate undo 0.42.3
[INFO] tweaked toml for crates.io crate undo 0.42.3 written to /workspace/builds/worker-10/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 270586f85a86cb112cb242898497d3c214df00b15b3537d2f93966a1d7189a53
[INFO] running `Command { std: "docker" "start" "-a" "270586f85a86cb112cb242898497d3c214df00b15b3537d2f93966a1d7189a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "270586f85a86cb112cb242898497d3c214df00b15b3537d2f93966a1d7189a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "270586f85a86cb112cb242898497d3c214df00b15b3537d2f93966a1d7189a53", kill_on_drop: false }`
[INFO] [stdout] 270586f85a86cb112cb242898497d3c214df00b15b3537d2f93966a1d7189a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f80653a27979968d643e57d9edfa0e3322319dfcbaf456290553c07b94fa711f
[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" "f80653a27979968d643e57d9edfa0e3322319dfcbaf456290553c07b94fa711f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling undo v0.42.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.11s
[INFO] running `Command { std: "docker" "inspect" "f80653a27979968d643e57d9edfa0e3322319dfcbaf456290553c07b94fa711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f80653a27979968d643e57d9edfa0e3322319dfcbaf456290553c07b94fa711f", kill_on_drop: false }`
[INFO] [stdout] f80653a27979968d643e57d9edfa0e3322319dfcbaf456290553c07b94fa711f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eda1ac5929db17ad2553bf80616f8ccaa18d3110f2544cd81ed9b4c7a642b450
[INFO] running `Command { std: "docker" "start" "-a" "eda1ac5929db17ad2553bf80616f8ccaa18d3110f2544cd81ed9b4c7a642b450", kill_on_drop: false }`
[INFO] [stderr]    Compiling undo v0.42.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "eda1ac5929db17ad2553bf80616f8ccaa18d3110f2544cd81ed9b4c7a642b450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eda1ac5929db17ad2553bf80616f8ccaa18d3110f2544cd81ed9b4c7a642b450", kill_on_drop: false }`
[INFO] [stdout] eda1ac5929db17ad2553bf80616f8ccaa18d3110f2544cd81ed9b4c7a642b450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] c30a7972f0a135554c08ebf8b74d4f5a58d48e0e0c850a48a9b50887c1a19ce1
[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" "c30a7972f0a135554c08ebf8b74d4f5a58d48e0e0c850a48a9b50887c1a19ce1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/undo-5473ee25d54b8f82
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test record::tests::go_to ... ok
[INFO] [stdout] test record::tests::checkpoint_saved ... ok
[INFO] [stdout] test record::tests::queue_commit ... ok
[INFO] [stdout] test record::tests::checkpoint_cancel ... ok
[INFO] [stdout] test record::tests::checkpoint_commit ... ok
[INFO] [stderr]    Doc-tests undo
[INFO] [stdout] test history::tests::go_to ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/history.rs - history::Builder (line 441) ... ok
[INFO] [stdout] test src/record.rs - record::Builder (line 423) ... ok
[INFO] [stdout] test src/record.rs - record::Queue (line 521) ... ok
[INFO] [stdout] test src/history.rs - history::Queue (line 519) ... ok
[INFO] [stdout] test src/record.rs - record::Record (line 31) ... ok
[INFO] [stdout] test src/history.rs - history::History (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c30a7972f0a135554c08ebf8b74d4f5a58d48e0e0c850a48a9b50887c1a19ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30a7972f0a135554c08ebf8b74d4f5a58d48e0e0c850a48a9b50887c1a19ce1", kill_on_drop: false }`
[INFO] [stdout] c30a7972f0a135554c08ebf8b74d4f5a58d48e0e0c850a48a9b50887c1a19ce1