[INFO] updating cached repository ccutch/chat-app
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ccutch/chat-app
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ccutch/chat-app" "work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ccutch/chat-app" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ccutch/chat-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ccutch/chat-app'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2c9289773f94ea9d86ec05706e2be838e531110e
[INFO] sha for GitHub repo ccutch/chat-app: 2c9289773f94ea9d86ec05706e2be838e531110e
[INFO] validating manifest of ccutch/chat-app 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 ccutch/chat-app 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 ccutch/chat-app
[INFO] finished frobbing ccutch/chat-app
[INFO] frobbed toml for ccutch/chat-app written to work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app/Cargo.toml
[INFO] started frobbing ccutch/chat-app
[INFO] finished frobbing ccutch/chat-app
[INFO] frobbed toml for ccutch/chat-app written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ccutch/chat-app/Cargo.toml
[INFO] crate ccutch/chat-app 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 ccutch/chat-app 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app:/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] 86ee78a1dac3e7e00c125b5d966b16947d43381610c3a3e01acd6e556b9d98e4
[INFO] running `"docker" "start" "-a" "86ee78a1dac3e7e00c125b5d966b16947d43381610c3a3e01acd6e556b9d98e4"`
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 91 |     encrypter: Encrypter,// sealing key
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn Encrypter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chat`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct Chat<D: Decrypter, E: Encrypter, T: Transport> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | struct User {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Recipient`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct Recipient {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RemoteKey`
[INFO] [stderr]    --> src/main.rs:104:1
[INFO] [stderr]     |
[INFO] [stderr] 104 | struct RemoteKey {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.37s
[INFO] running `"docker" "inspect" "86ee78a1dac3e7e00c125b5d966b16947d43381610c3a3e01acd6e556b9d98e4"`
[INFO] running `"docker" "rm" "-f" "86ee78a1dac3e7e00c125b5d966b16947d43381610c3a3e01acd6e556b9d98e4"`
[INFO] [stdout] 86ee78a1dac3e7e00c125b5d966b16947d43381610c3a3e01acd6e556b9d98e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] c687c5a9c5d54829ccbddb072a1ebbe9dc6d6c16b417d647cd8487fd7e6c838f
[INFO] running `"docker" "start" "-a" "c687c5a9c5d54829ccbddb072a1ebbe9dc6d6c16b417d647cd8487fd7e6c838f"`
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 91 |     encrypter: Encrypter,// sealing key
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn Encrypter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chat`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct Chat<D: Decrypter, E: Encrypter, T: Transport> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | struct User {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Recipient`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct Recipient {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RemoteKey`
[INFO] [stderr]    --> src/main.rs:104:1
[INFO] [stderr]     |
[INFO] [stderr] 104 | struct RemoteKey {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "c687c5a9c5d54829ccbddb072a1ebbe9dc6d6c16b417d647cd8487fd7e6c838f"`
[INFO] running `"docker" "rm" "-f" "c687c5a9c5d54829ccbddb072a1ebbe9dc6d6c16b417d647cd8487fd7e6c838f"`
[INFO] [stdout] c687c5a9c5d54829ccbddb072a1ebbe9dc6d6c16b417d647cd8487fd7e6c838f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ccutch/chat-app:/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" "test" "--frozen"`
[INFO] [stdout] 68853fee4b10701c828fbb32aa1e96061638142a6625e3a43123abbe6ce9a824
[INFO] running `"docker" "start" "-a" "68853fee4b10701c828fbb32aa1e96061638142a6625e3a43123abbe6ce9a824"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chat-aa5e6af9347ddbb2
[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" "68853fee4b10701c828fbb32aa1e96061638142a6625e3a43123abbe6ce9a824"`
[INFO] running `"docker" "rm" "-f" "68853fee4b10701c828fbb32aa1e96061638142a6625e3a43123abbe6ce9a824"`
[INFO] [stdout] 68853fee4b10701c828fbb32aa1e96061638142a6625e3a43123abbe6ce9a824