[INFO] updating cached repository https://github.com/ruckc/mcr
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fc0734752846b14b3828d56403c693cc03db35da
[INFO] testing ruckc/mcr against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruckc/mcr on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ruckc/mcr
[INFO] finished tweaking git repo https://github.com/ruckc/mcr
[INFO] tweaked toml for git repo https://github.com/ruckc/mcr written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ruckc/mcr already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 4734c7f72ff457cc9cab979fedf4e8d866519d8d940557d6c9bfd6d0bbff7488
[INFO] running `"docker" "start" "-a" "4734c7f72ff457cc9cab979fedf4e8d866519d8d940557d6c9bfd6d0bbff7488"`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling arrayvec v0.3.25
[INFO] [stderr]    Compiling syslog v4.0.1
[INFO] [stderr]    Compiling hexdump v0.1.0
[INFO] [stderr]    Compiling clokwerk v0.2.2
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling mcr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `let`
[INFO] [stderr]   --> src/config.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stderr]    |                                                                                - help: a semicolon may be missing here
[INFO] [stderr] ...
[INFO] [stderr] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mcr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4734c7f72ff457cc9cab979fedf4e8d866519d8d940557d6c9bfd6d0bbff7488"`
[INFO] running `"docker" "rm" "-f" "4734c7f72ff457cc9cab979fedf4e8d866519d8d940557d6c9bfd6d0bbff7488"`
[INFO] [stdout] 4734c7f72ff457cc9cab979fedf4e8d866519d8d940557d6c9bfd6d0bbff7488