[INFO] fetching crate merkle-tree-stream 0.12.0...
[INFO] testing merkle-tree-stream-0.12.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate merkle-tree-stream 0.12.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate merkle-tree-stream 0.12.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate merkle-tree-stream 0.12.0
[INFO] finished tweaking crates.io crate merkle-tree-stream 0.12.0
[INFO] tweaked toml for crates.io crate merkle-tree-stream 0.12.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate merkle-tree-stream 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e6fd49fcef7b81062e54e5a9579b87dcb140a25042a48b60ff0bd5da2bb92026
[INFO] running `"docker" "start" "-a" "e6fd49fcef7b81062e54e5a9579b87dcb140a25042a48b60ff0bd5da2bb92026"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling flat-tree v5.0.0
[INFO] [stderr]    Compiling merkle-tree-stream v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "e6fd49fcef7b81062e54e5a9579b87dcb140a25042a48b60ff0bd5da2bb92026"`
[INFO] running `"docker" "rm" "-f" "e6fd49fcef7b81062e54e5a9579b87dcb140a25042a48b60ff0bd5da2bb92026"`
[INFO] [stdout] e6fd49fcef7b81062e54e5a9579b87dcb140a25042a48b60ff0bd5da2bb92026
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b47a4f53679fbe562d5ddd448b8a329f5b34f6ffea4b42ebdf50d0d8275fddc5
[INFO] running `"docker" "start" "-a" "b47a4f53679fbe562d5ddd448b8a329f5b34f6ffea4b42ebdf50d0d8275fddc5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.27
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling aho-corasick v0.7.7
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling async-std v1.5.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling merkle-tree-stream v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 42.59s
[INFO] running `"docker" "inspect" "b47a4f53679fbe562d5ddd448b8a329f5b34f6ffea4b42ebdf50d0d8275fddc5"`
[INFO] running `"docker" "rm" "-f" "b47a4f53679fbe562d5ddd448b8a329f5b34f6ffea4b42ebdf50d0d8275fddc5"`
[INFO] [stdout] b47a4f53679fbe562d5ddd448b8a329f5b34f6ffea4b42ebdf50d0d8275fddc5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3fd089e27697c6965e62b97ad8c4cc0a6ec4e24925841803185e7f8e83d1fe44
[INFO] running `"docker" "start" "-a" "3fd089e27697c6965e62b97ad8c4cc0a6ec4e24925841803185e7f8e83d1fe44"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/merkle_tree_stream-de008809b5bd9e55
[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] [stderr]      Running /opt/rustwide/target/debug/deps/lib-d03c7fc55989c47c
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test mts_one_node ... ok
[INFO] [stdout] test mts_more_nodes ... ok
[INFO] [stdout] test roots_are_subset_of_nodes ... ok
[INFO] [stdout] test all_leaves_contain_data ... ok
[INFO] [stdout] test contains_all_data_in_correct_order ... ok
[INFO] [stdout] test roots_have_no_parent ... ok
[INFO] [stdout] test hashes_change_when_data_is_changed ... ok
[INFO] [stdout] test mts_is_deterministic ... ok
[INFO] [stdout] test all_nodes_are_reachable_from_roots ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle-tree-stream
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 5) ... ok
[INFO] [stdout] test src/lib.rs - MerkleTreeStream (line 106) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3fd089e27697c6965e62b97ad8c4cc0a6ec4e24925841803185e7f8e83d1fe44"`
[INFO] running `"docker" "rm" "-f" "3fd089e27697c6965e62b97ad8c4cc0a6ec4e24925841803185e7f8e83d1fe44"`
[INFO] [stdout] 3fd089e27697c6965e62b97ad8c4cc0a6ec4e24925841803185e7f8e83d1fe44