[INFO] updating cached repository RebeccaSyria/mud
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RebeccaSyria/mud
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RebeccaSyria/mud" "work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RebeccaSyria/mud" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RebeccaSyria/mud"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RebeccaSyria/mud'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8f2a8d5def731212f3b69b4757de84f288e685a
[INFO] sha for GitHub repo RebeccaSyria/mud: b8f2a8d5def731212f3b69b4757de84f288e685a
[INFO] validating manifest of RebeccaSyria/mud 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 RebeccaSyria/mud 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 RebeccaSyria/mud
[INFO] finished frobbing RebeccaSyria/mud
[INFO] frobbed toml for RebeccaSyria/mud written to work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud/Cargo.toml
[INFO] started frobbing RebeccaSyria/mud
[INFO] finished frobbing RebeccaSyria/mud
[INFO] frobbed toml for RebeccaSyria/mud written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/RebeccaSyria/mud/Cargo.toml
[INFO] crate RebeccaSyria/mud already has a lockfile, it will not be regenerated
[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 RebeccaSyria/mud 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud:/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] 4e41b1476f8baad38c1558563cb0bc299dc5fa92d7f2ec392e2fa508389252f4
[INFO] running `"docker" "start" "-a" "4e41b1476f8baad38c1558563cb0bc299dc5fa92d7f2ec392e2fa508389252f4"`
[INFO] [stderr]    Compiling mud v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `output` is never read
[INFO] [stderr]   --> src/main.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 |             let mut output = "";
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `room_name`
[INFO] [stderr]  --> src/room.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     room_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `room_id`
[INFO] [stderr]  --> src/room.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     room_id: i32,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `messages`
[INFO] [stderr]  --> src/room.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     messages: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "4e41b1476f8baad38c1558563cb0bc299dc5fa92d7f2ec392e2fa508389252f4"`
[INFO] running `"docker" "rm" "-f" "4e41b1476f8baad38c1558563cb0bc299dc5fa92d7f2ec392e2fa508389252f4"`
[INFO] [stdout] 4e41b1476f8baad38c1558563cb0bc299dc5fa92d7f2ec392e2fa508389252f4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud:/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] 06566b09620bdaa0483c4ef1c64565b344bbe2ddfa53f0c3e85b977f913d3ed5
[INFO] running `"docker" "start" "-a" "06566b09620bdaa0483c4ef1c64565b344bbe2ddfa53f0c3e85b977f913d3ed5"`
[INFO] [stderr]    Compiling mud v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `output` is never read
[INFO] [stderr]   --> src/main.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 |             let mut output = "";
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `room_name`
[INFO] [stderr]  --> src/room.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     room_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `room_id`
[INFO] [stderr]  --> src/room.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     room_id: i32,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `messages`
[INFO] [stderr]  --> src/room.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     messages: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "06566b09620bdaa0483c4ef1c64565b344bbe2ddfa53f0c3e85b977f913d3ed5"`
[INFO] running `"docker" "rm" "-f" "06566b09620bdaa0483c4ef1c64565b344bbe2ddfa53f0c3e85b977f913d3ed5"`
[INFO] [stdout] 06566b09620bdaa0483c4ef1c64565b344bbe2ddfa53f0c3e85b977f913d3ed5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/RebeccaSyria/mud:/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] 7cf9ef76e9e860b7d3c24c25329659f5df0a7caf9e953d094f0699625dbc3872
[INFO] running `"docker" "start" "-a" "7cf9ef76e9e860b7d3c24c25329659f5df0a7caf9e953d094f0699625dbc3872"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mud-b623221ed2e361f3
[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" "7cf9ef76e9e860b7d3c24c25329659f5df0a7caf9e953d094f0699625dbc3872"`
[INFO] running `"docker" "rm" "-f" "7cf9ef76e9e860b7d3c24c25329659f5df0a7caf9e953d094f0699625dbc3872"`
[INFO] [stdout] 7cf9ef76e9e860b7d3c24c25329659f5df0a7caf9e953d094f0699625dbc3872