[INFO] crate IMAPServer 0.0.0 is already in cache
[INFO] extracting crate IMAPServer 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/IMAPServer/0.0.0
[INFO] extracting crate IMAPServer 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/IMAPServer/0.0.0
[INFO] validating manifest of IMAPServer-0.0.0 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 IMAPServer-0.0.0 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 IMAPServer-0.0.0
[INFO] finished frobbing IMAPServer-0.0.0
[INFO] frobbed toml for IMAPServer-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/IMAPServer/0.0.0/Cargo.toml
[INFO] started frobbing IMAPServer-0.0.0
[INFO] finished frobbing IMAPServer-0.0.0
[INFO] frobbed toml for IMAPServer-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/IMAPServer/0.0.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing IMAPServer-0.0.0 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/IMAPServer/0.0.0:/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] d9a6b53c5e7e36442f7127fb85f254a684ab8b8ad1fbac20c5048575230565c2
[INFO] running `"docker" "start" "-a" "d9a6b53c5e7e36442f7127fb85f254a684ab8b8ad1fbac20c5048575230565c2"`
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling config v0.4.1
[INFO] [stderr]    Compiling IMAPServer v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `IMAPServer` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `imapserver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     helper::get_config().set_default("RFC", "3501");
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `"docker" "inspect" "d9a6b53c5e7e36442f7127fb85f254a684ab8b8ad1fbac20c5048575230565c2"`
[INFO] running `"docker" "rm" "-f" "d9a6b53c5e7e36442f7127fb85f254a684ab8b8ad1fbac20c5048575230565c2"`
[INFO] [stdout] d9a6b53c5e7e36442f7127fb85f254a684ab8b8ad1fbac20c5048575230565c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/IMAPServer/0.0.0:/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] 9859de0787a2e40dfd6e897bcd577fdbe5d051110d64973dd3fb852f2af92426
[INFO] running `"docker" "start" "-a" "9859de0787a2e40dfd6e897bcd577fdbe5d051110d64973dd3fb852f2af92426"`
[INFO] [stderr]    Compiling IMAPServer v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `IMAPServer` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `imapserver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     helper::get_config().set_default("RFC", "3501");
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "9859de0787a2e40dfd6e897bcd577fdbe5d051110d64973dd3fb852f2af92426"`
[INFO] running `"docker" "rm" "-f" "9859de0787a2e40dfd6e897bcd577fdbe5d051110d64973dd3fb852f2af92426"`
[INFO] [stdout] 9859de0787a2e40dfd6e897bcd577fdbe5d051110d64973dd3fb852f2af92426
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/IMAPServer/0.0.0:/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] 3f1a430377f141d92fab2277ddda06be1044d235a453aa153f56db036d2f4bfb
[INFO] running `"docker" "start" "-a" "3f1a430377f141d92fab2277ddda06be1044d235a453aa153f56db036d2f4bfb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/IMAPServer-0e643c8932e47d06
[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" "3f1a430377f141d92fab2277ddda06be1044d235a453aa153f56db036d2f4bfb"`
[INFO] running `"docker" "rm" "-f" "3f1a430377f141d92fab2277ddda06be1044d235a453aa153f56db036d2f4bfb"`
[INFO] [stdout] 3f1a430377f141d92fab2277ddda06be1044d235a453aa153f56db036d2f4bfb