[INFO] crate cascade 0.1.4 is already in cache
[INFO] testing cascade-0.1.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate cascade 0.1.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cascade 0.1.4 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 cascade 0.1.4
[INFO] finished tweaking crates.io crate cascade 0.1.4
[INFO] tweaked toml for crates.io crate cascade 0.1.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cascade 0.1.4 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-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" "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] a499f033326bb9d999ae1cbd5212fa629e328626b5558e1a16b2eb06c331a160
[INFO] running `"docker" "start" "-a" "a499f033326bb9d999ae1cbd5212fa629e328626b5558e1a16b2eb06c331a160"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cascade v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `"docker" "inspect" "a499f033326bb9d999ae1cbd5212fa629e328626b5558e1a16b2eb06c331a160"`
[INFO] running `"docker" "rm" "-f" "a499f033326bb9d999ae1cbd5212fa629e328626b5558e1a16b2eb06c331a160"`
[INFO] [stdout] a499f033326bb9d999ae1cbd5212fa629e328626b5558e1a16b2eb06c331a160
[INFO] running `"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" "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] bb6c32350431d2c0ac87cdc54137ea0f3248ac524c78ff59a8b7c034f6370bc0
[INFO] running `"docker" "start" "-a" "bb6c32350431d2c0ac87cdc54137ea0f3248ac524c78ff59a8b7c034f6370bc0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cascade v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `method_chain_example`
[INFO] [stderr]   --> examples/basic_cascades.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |   let method_chain_example = cascade! {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_method_chain_example`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/basic_cascades.rs:93:3
[INFO] [stderr]    |
[INFO] [stderr] 93 |   option_cascade_test();
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "bb6c32350431d2c0ac87cdc54137ea0f3248ac524c78ff59a8b7c034f6370bc0"`
[INFO] running `"docker" "rm" "-f" "bb6c32350431d2c0ac87cdc54137ea0f3248ac524c78ff59a8b7c034f6370bc0"`
[INFO] [stdout] bb6c32350431d2c0ac87cdc54137ea0f3248ac524c78ff59a8b7c034f6370bc0
[INFO] running `"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" "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] 22972bae6d766955ff38c02b5c1a0af0939a6c4e8e2c34cccf04fc51c0debd01
[INFO] running `"docker" "start" "-a" "22972bae6d766955ff38c02b5c1a0af0939a6c4e8e2c34cccf04fc51c0debd01"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `method_chain_example`
[INFO] [stderr]   --> examples/basic_cascades.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |   let method_chain_example = cascade! {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_method_chain_example`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/basic_cascades.rs:93:3
[INFO] [stderr]    |
[INFO] [stderr] 93 |   option_cascade_test();
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cascade-80e7fbf42c62102d
[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]    Doc-tests cascade
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - cascade (line 58) ... ok
[INFO] [stdout] test src/lib.rs - cascade (line 43) ... ok
[INFO] [stdout] test src/lib.rs - cascade (line 11) ... ok
[INFO] [stdout] test src/lib.rs - cascade (line 28) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "22972bae6d766955ff38c02b5c1a0af0939a6c4e8e2c34cccf04fc51c0debd01"`
[INFO] running `"docker" "rm" "-f" "22972bae6d766955ff38c02b5c1a0af0939a6c4e8e2c34cccf04fc51c0debd01"`
[INFO] [stdout] 22972bae6d766955ff38c02b5c1a0af0939a6c4e8e2c34cccf04fc51c0debd01