[INFO] updating cached repository erochest/straw-boss
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erochest/straw-boss
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erochest/straw-boss" "work/ex/beta-1.38-1/sources/1.37.0/gh/erochest/straw-boss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/erochest/straw-boss'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erochest/straw-boss" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erochest/straw-boss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erochest/straw-boss'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e7eed4cb1b88978d9292396b622a40db78fc01a6
[INFO] sha for GitHub repo erochest/straw-boss: e7eed4cb1b88978d9292396b622a40db78fc01a6
[INFO] validating manifest of erochest/straw-boss on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of erochest/straw-boss on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing erochest/straw-boss
[INFO] finished frobbing erochest/straw-boss
[INFO] frobbed toml for erochest/straw-boss written to work/ex/beta-1.38-1/sources/1.37.0/gh/erochest/straw-boss/Cargo.toml
[INFO] started frobbing erochest/straw-boss
[INFO] finished frobbing erochest/straw-boss
[INFO] frobbed toml for erochest/straw-boss written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erochest/straw-boss/Cargo.toml
[INFO] crate erochest/straw-boss already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing erochest/straw-boss against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/erochest/straw-boss:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7a57c0dccfed8fa4874f51bd8c2dff482752fed6d2a0e4199d43ffff2930b16f
[INFO] running `"docker" "start" "-a" "7a57c0dccfed8fa4874f51bd8c2dff482752fed6d2a0e4199d43ffff2930b16f"`
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.6
[INFO] [stderr]    Compiling sysinfo v0.5.1
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling daemonize v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.5.3
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling shared_child v0.3.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling rmp v0.8.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling os_pipe v0.6.1
[INFO] [stderr]    Compiling duct v0.11.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling shellwords v0.1.0
[INFO] [stderr]    Compiling serde_yaml v0.7.3
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling straw-boss v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(try_from)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(plugin)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(option_replace)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]   --> src/service/mod.rs:87:34
[INFO] [stderr]    |
[INFO] [stderr] 87 |             .filter(|line| !line.trim_left().starts_with('#'))
[INFO] [stderr]    |                                  ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `straw-boss`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7a57c0dccfed8fa4874f51bd8c2dff482752fed6d2a0e4199d43ffff2930b16f"`
[INFO] running `"docker" "rm" "-f" "7a57c0dccfed8fa4874f51bd8c2dff482752fed6d2a0e4199d43ffff2930b16f"`
[INFO] [stdout] 7a57c0dccfed8fa4874f51bd8c2dff482752fed6d2a0e4199d43ffff2930b16f