[INFO] crate read-tree 0.2.0 is already in cache
[INFO] testing read-tree-0.2.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate read-tree 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate read-tree 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate read-tree 0.2.0
[INFO] finished tweaking crates.io crate read-tree 0.2.0
[INFO] tweaked toml for crates.io crate read-tree 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bb345c35c999e4b22d33005109a4c66960653465dcbf114248830ab7c059d86
[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" "3bb345c35c999e4b22d33005109a4c66960653465dcbf114248830ab7c059d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bb345c35c999e4b22d33005109a4c66960653465dcbf114248830ab7c059d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb345c35c999e4b22d33005109a4c66960653465dcbf114248830ab7c059d86", kill_on_drop: false }`
[INFO] [stdout] 3bb345c35c999e4b22d33005109a4c66960653465dcbf114248830ab7c059d86
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e1990de10835b102108df5d03072b75a3aa97009655d772b7e8f61323c05ebf
[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" "3e1990de10835b102108df5d03072b75a3aa97009655d772b7e8f61323c05ebf", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "3e1990de10835b102108df5d03072b75a3aa97009655d772b7e8f61323c05ebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1990de10835b102108df5d03072b75a3aa97009655d772b7e8f61323c05ebf", kill_on_drop: false }`
[INFO] [stdout] 3e1990de10835b102108df5d03072b75a3aa97009655d772b7e8f61323c05ebf
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53787ba497e192957d318c65c36f5cfe96a10d5372b54481459eefdc5c30263b
[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" "53787ba497e192957d318c65c36f5cfe96a10d5372b54481459eefdc5c30263b", kill_on_drop: false }`
[INFO] [stderr]    Compiling read-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "53787ba497e192957d318c65c36f5cfe96a10d5372b54481459eefdc5c30263b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53787ba497e192957d318c65c36f5cfe96a10d5372b54481459eefdc5c30263b", kill_on_drop: false }`
[INFO] [stdout] 53787ba497e192957d318c65c36f5cfe96a10d5372b54481459eefdc5c30263b
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bebbbfd503ad8676789009f635118686e9043fa5717462eb7833822ff67d5428
[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" "bebbbfd503ad8676789009f635118686e9043fa5717462eb7833822ff67d5428", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/read_tree-67d6fdf04d93e76f
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test::test_iter::test_iter_children ... ok
[INFO] [stdout] test test::test_node::test_parent ... ok
[INFO] [stdout] test test::test_iter::test_iter_descendants ... ok
[INFO] [stdout] test test::test_sapling::test_clear ... ok
[INFO] [stdout] test test::test_sapling::test_tiny ... ok
[INFO] [stdout] test test::test_iter::test_iter_ancestors ... ok
[INFO] [stdout] test test::test_sapling::test_small ... ok
[INFO] [stdout] test test::test_node::test_to_tree ... ok
[INFO] [stdout] test test::test_node::test_from ... ok
[INFO] [stdout] test test::test_sapling::test_err ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests read-tree
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::pop_all (line 351) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::pop (line 335) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::new (line 177) ... ok
[INFO] [stdout] test src/tree.rs - tree::Children (line 826) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling (line 137) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::peek (line 293) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::pop_as_leaf_all (line 406) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::pop (line 325) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::clear (line 427) ... ok
[INFO] [stdout] test src/tree.rs - tree::Sapling<T>::pop_as_leaf (line 375) ... ok
[INFO] [stdout] test src/tree.rs - tree::Descendants (line 902) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bebbbfd503ad8676789009f635118686e9043fa5717462eb7833822ff67d5428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bebbbfd503ad8676789009f635118686e9043fa5717462eb7833822ff67d5428", kill_on_drop: false }`
[INFO] [stdout] bebbbfd503ad8676789009f635118686e9043fa5717462eb7833822ff67d5428