[INFO] fetching crate advancedresearch-tree_mem_sort 0.2.0...
[INFO] testing advancedresearch-tree_mem_sort-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate advancedresearch-tree_mem_sort 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate advancedresearch-tree_mem_sort 0.2.0 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 advancedresearch-tree_mem_sort 0.2.0
[INFO] finished tweaking crates.io crate advancedresearch-tree_mem_sort 0.2.0
[INFO] tweaked toml for crates.io crate advancedresearch-tree_mem_sort 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate advancedresearch-tree_mem_sort 0.2.0 already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] dabe8a8c7f189d945377dcb8bb28fbe0a407a90afc5ff6a36262aa6e2ab79249
[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" "dabe8a8c7f189d945377dcb8bb28fbe0a407a90afc5ff6a36262aa6e2ab79249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dabe8a8c7f189d945377dcb8bb28fbe0a407a90afc5ff6a36262aa6e2ab79249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabe8a8c7f189d945377dcb8bb28fbe0a407a90afc5ff6a36262aa6e2ab79249", kill_on_drop: false }`
[INFO] [stdout] dabe8a8c7f189d945377dcb8bb28fbe0a407a90afc5ff6a36262aa6e2ab79249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5b7db68a1de3dd62ed9a9cc5bb905cec31ab8244fcbc6cdc8a0d00d1e41d3396
[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" "5b7db68a1de3dd62ed9a9cc5bb905cec31ab8244fcbc6cdc8a0d00d1e41d3396", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-tree_mem_sort v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "5b7db68a1de3dd62ed9a9cc5bb905cec31ab8244fcbc6cdc8a0d00d1e41d3396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7db68a1de3dd62ed9a9cc5bb905cec31ab8244fcbc6cdc8a0d00d1e41d3396", kill_on_drop: false }`
[INFO] [stdout] 5b7db68a1de3dd62ed9a9cc5bb905cec31ab8244fcbc6cdc8a0d00d1e41d3396
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 529bc16ecc8811ffae87f01f127164d5c8c754ac23b399e2159060f2e07316f4
[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" "529bc16ecc8811ffae87f01f127164d5c8c754ac23b399e2159060f2e07316f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-tree_mem_sort v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "529bc16ecc8811ffae87f01f127164d5c8c754ac23b399e2159060f2e07316f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "529bc16ecc8811ffae87f01f127164d5c8c754ac23b399e2159060f2e07316f4", kill_on_drop: false }`
[INFO] [stdout] 529bc16ecc8811ffae87f01f127164d5c8c754ac23b399e2159060f2e07316f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 5a291d728cb020feee791b0b175ad522ca37000d4943d704ec55f16580676348
[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" "5a291d728cb020feee791b0b175ad522ca37000d4943d704ec55f16580676348", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tree_mem_sort-ecadc222af196117
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::one ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::three ... ok
[INFO] [stdout] test tests::two ... ok
[INFO] [stderr]    Doc-tests tree_mem_sort
[INFO] [stdout] test tests::four ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 65) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a291d728cb020feee791b0b175ad522ca37000d4943d704ec55f16580676348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a291d728cb020feee791b0b175ad522ca37000d4943d704ec55f16580676348", kill_on_drop: false }`
[INFO] [stdout] 5a291d728cb020feee791b0b175ad522ca37000d4943d704ec55f16580676348