[INFO] fetching crate natsclient 0.0.5...
[INFO] extracting crate natsclient 0.0.5 into work/ex/beta-1.37-6/sources/1.36.0/reg/natsclient/0.0.5
[INFO] extracting crate natsclient 0.0.5 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/natsclient/0.0.5
[INFO] validating manifest of natsclient-0.0.5 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of natsclient-0.0.5 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing natsclient-0.0.5
[INFO] removed 2 missing examples
[INFO] finished frobbing natsclient-0.0.5
[INFO] frobbed toml for natsclient-0.0.5 written to work/ex/beta-1.37-6/sources/1.36.0/reg/natsclient/0.0.5/Cargo.toml
[INFO] started frobbing natsclient-0.0.5
[INFO] removed 2 missing examples
[INFO] finished frobbing natsclient-0.0.5
[INFO] frobbed toml for natsclient-0.0.5 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/natsclient/0.0.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing natsclient-0.0.5 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/natsclient/0.0.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 54001b886c911968a92ff0b429ae22a99b653d737d3a2e767f34378c4d1c48b4
[INFO] running `"docker" "start" "-a" "54001b886c911968a92ff0b429ae22a99b653d737d3a2e767f34378c4d1c48b4"`
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling getrandom v0.1.7
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling zeroize_derive v0.9.3
[INFO] [stderr]    Compiling nats-types v0.1.8
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.2
[INFO] [stderr]    Compiling zeroize v0.9.3
[INFO] [stderr]    Compiling nuid v0.2.1
[INFO] [stderr]    Compiling subtle-encoding v0.3.7
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]    Compiling signatory v0.11.5
[INFO] [stderr]    Compiling signatory-dalek v0.11.0
[INFO] [stderr]    Compiling nkeys v0.0.6
[INFO] [stderr]    Compiling natsclient v0.0.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.49s
[INFO] running `"docker" "inspect" "54001b886c911968a92ff0b429ae22a99b653d737d3a2e767f34378c4d1c48b4"`
[INFO] running `"docker" "rm" "-f" "54001b886c911968a92ff0b429ae22a99b653d737d3a2e767f34378c4d1c48b4"`
[INFO] [stdout] 54001b886c911968a92ff0b429ae22a99b653d737d3a2e767f34378c4d1c48b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/natsclient/0.0.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 98e5e45680dcb676df3c0353b1a6b94ea7769c1b567633ad0306b6974707d333
[INFO] running `"docker" "start" "-a" "98e5e45680dcb676df3c0353b1a6b94ea7769c1b567633ad0306b6974707d333"`
[INFO] [stderr]    Compiling pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling natsclient v0.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `ClientOptions`, `Client`
[INFO] [stderr]    --> src/lib.rs:297:38
[INFO] [stderr]     |
[INFO] [stderr] 297 |     use super::{AuthenticationStyle, Client, ClientOptions};
[INFO] [stderr]     |                                      ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]    --> src/lib.rs:298:9
[INFO] [stderr]     |
[INFO] [stderr] 298 |     use std::time::Duration;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.77s
[INFO] running `"docker" "inspect" "98e5e45680dcb676df3c0353b1a6b94ea7769c1b567633ad0306b6974707d333"`
[INFO] running `"docker" "rm" "-f" "98e5e45680dcb676df3c0353b1a6b94ea7769c1b567633ad0306b6974707d333"`
[INFO] [stdout] 98e5e45680dcb676df3c0353b1a6b94ea7769c1b567633ad0306b6974707d333
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/natsclient/0.0.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] ba87ea0fbbf4f9a54d007a73b8b5d5473ba87f5b9e355355a851ef686f0897b6
[INFO] running `"docker" "start" "-a" "ba87ea0fbbf4f9a54d007a73b8b5d5473ba87f5b9e355355a851ef686f0897b6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/natsclient-14f97c857c48d582
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::credsfile_parses ... ok
[INFO] [stdout] test subs::tests::remove_subscription_sends_unsub_message ... ok
[INFO] [stdout] test subs::tests::add_subscription_sends_sub_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests natsclient
[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] running `"docker" "inspect" "ba87ea0fbbf4f9a54d007a73b8b5d5473ba87f5b9e355355a851ef686f0897b6"`
[INFO] running `"docker" "rm" "-f" "ba87ea0fbbf4f9a54d007a73b8b5d5473ba87f5b9e355355a851ef686f0897b6"`
[INFO] [stdout] ba87ea0fbbf4f9a54d007a73b8b5d5473ba87f5b9e355355a851ef686f0897b6