[INFO] fetching crate charlie_buffalo 1.0.0...
[INFO] testing charlie_buffalo-1.0.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate charlie_buffalo 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate charlie_buffalo 1.0.0 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 charlie_buffalo 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate charlie_buffalo 1.0.0
[INFO] tweaked toml for crates.io crate charlie_buffalo 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate charlie_buffalo 1.0.0 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] [stdout] ab5b55eb981c38d3d47b3a6d9f769939d0ade8c9d3a233182c2ba0e01028353f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ab5b55eb981c38d3d47b3a6d9f769939d0ade8c9d3a233182c2ba0e01028353f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.15
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling charlie_buffalo v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.67s
[INFO] running `"docker" "inspect" "ab5b55eb981c38d3d47b3a6d9f769939d0ade8c9d3a233182c2ba0e01028353f"`
[INFO] running `"docker" "rm" "-f" "ab5b55eb981c38d3d47b3a6d9f769939d0ade8c9d3a233182c2ba0e01028353f"`
[INFO] [stdout] ab5b55eb981c38d3d47b3a6d9f769939d0ade8c9d3a233182c2ba0e01028353f
[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] [stdout] b30348bceb73d3d630437c74bbf2a3dbbd1debe87ef02fdc1d77d93e63ac0ea6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b30348bceb73d3d630437c74bbf2a3dbbd1debe87ef02fdc1d77d93e63ac0ea6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling rmp-serde v0.14.3
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling charlie_buffalo v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> examples/full_demo.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 104 |     panic!("Here we voluntary finishing this example with this panic, which will be also logged !");
[INFO] [stderr]     |     ------------------------------------------------------------------------------------------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 111 |     let _ = std::panic::take_hook();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.11s
[INFO] running `"docker" "inspect" "b30348bceb73d3d630437c74bbf2a3dbbd1debe87ef02fdc1d77d93e63ac0ea6"`
[INFO] running `"docker" "rm" "-f" "b30348bceb73d3d630437c74bbf2a3dbbd1debe87ef02fdc1d77d93e63ac0ea6"`
[INFO] [stdout] b30348bceb73d3d630437c74bbf2a3dbbd1debe87ef02fdc1d77d93e63ac0ea6
[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] 07f437d7b8117c5d29dcb2952d4a78282b779d6528afe51116b6996bcdd232b5
[INFO] running `"docker" "start" "-a" "07f437d7b8117c5d29dcb2952d4a78282b779d6528afe51116b6996bcdd232b5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> examples/full_demo.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 104 |     panic!("Here we voluntary finishing this example with this panic, which will be also logged !");
[INFO] [stderr]     |     ------------------------------------------------------------------------------------------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 111 |     let _ = std::panic::take_hook();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/charlie_buffalo-fff2e5d9846a1cb5
[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 charlie_buffalo
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/logger/hooks.rs - logger::hooks::Dispatcher (line 17) ... ok
[INFO] [stdout] test src/logger/hooks.rs - logger::hooks::Dropper (line 70) ... ok
[INFO] [stdout] test src/logger/hooks.rs - logger::hooks::Dropper (line 61) ... ok
[INFO] [stdout] test src/logger/hooks.rs - logger::hooks::Dispatcher (line 26) ... 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" "07f437d7b8117c5d29dcb2952d4a78282b779d6528afe51116b6996bcdd232b5"`
[INFO] running `"docker" "rm" "-f" "07f437d7b8117c5d29dcb2952d4a78282b779d6528afe51116b6996bcdd232b5"`
[INFO] [stdout] 07f437d7b8117c5d29dcb2952d4a78282b779d6528afe51116b6996bcdd232b5