[INFO] updating cached repository underflowed/text-adventure-game-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/underflowed/text-adventure-game-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/underflowed/text-adventure-game-in-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/underflowed/text-adventure-game-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/underflowed/text-adventure-game-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/underflowed/text-adventure-game-in-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0afa8bdac61ae836161d39fc76c84f5d39f73549
[INFO] sha for GitHub repo underflowed/text-adventure-game-in-rust: 0afa8bdac61ae836161d39fc76c84f5d39f73549
[INFO] validating manifest of underflowed/text-adventure-game-in-rust 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 underflowed/text-adventure-game-in-rust 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 underflowed/text-adventure-game-in-rust
[INFO] finished frobbing underflowed/text-adventure-game-in-rust
[INFO] frobbed toml for underflowed/text-adventure-game-in-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/underflowed/text-adventure-game-in-rust/Cargo.toml
[INFO] started frobbing underflowed/text-adventure-game-in-rust
[INFO] finished frobbing underflowed/text-adventure-game-in-rust
[INFO] frobbed toml for underflowed/text-adventure-game-in-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust/Cargo.toml
[INFO] crate underflowed/text-adventure-game-in-rust 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 underflowed/text-adventure-game-in-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 24810b4737fe9dda27372469b362853d079232ec2d10733323eab7aa0634ab49
[INFO] running `"docker" "start" "-a" "24810b4737fe9dda27372469b362853d079232ec2d10733323eab7aa0634ab49"`
[INFO] [stderr]    Compiling text_adventure v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:208:37
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let mut map: Vec<Vec<Option<Box<Room>>>> = vec![
[INFO] [stderr]     |                                     ^^^^ help: use `dyn`: `dyn Room`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `visitedHash` should have a snake case name
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     visitedHash: HashSet<i32>,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to snake case: `visited_hash`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "24810b4737fe9dda27372469b362853d079232ec2d10733323eab7aa0634ab49"`
[INFO] running `"docker" "rm" "-f" "24810b4737fe9dda27372469b362853d079232ec2d10733323eab7aa0634ab49"`
[INFO] [stdout] 24810b4737fe9dda27372469b362853d079232ec2d10733323eab7aa0634ab49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3e8f9bd41861c1069bc7d9fa19af577a77e92cd4ac44e42bc8626ec9ac80446d
[INFO] running `"docker" "start" "-a" "3e8f9bd41861c1069bc7d9fa19af577a77e92cd4ac44e42bc8626ec9ac80446d"`
[INFO] [stderr]    Compiling text_adventure v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:208:37
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let mut map: Vec<Vec<Option<Box<Room>>>> = vec![
[INFO] [stderr]     |                                     ^^^^ help: use `dyn`: `dyn Room`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `visitedHash` should have a snake case name
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     visitedHash: HashSet<i32>,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to snake case: `visited_hash`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "3e8f9bd41861c1069bc7d9fa19af577a77e92cd4ac44e42bc8626ec9ac80446d"`
[INFO] running `"docker" "rm" "-f" "3e8f9bd41861c1069bc7d9fa19af577a77e92cd4ac44e42bc8626ec9ac80446d"`
[INFO] [stdout] 3e8f9bd41861c1069bc7d9fa19af577a77e92cd4ac44e42bc8626ec9ac80446d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/underflowed/text-adventure-game-in-rust:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 99556b2fbf73dc3dcb43ed674774987ef642dfd4bcd79006314946afdfc294fa
[INFO] running `"docker" "start" "-a" "99556b2fbf73dc3dcb43ed674774987ef642dfd4bcd79006314946afdfc294fa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/text_adventure-88cf1ab1a1e59a92
[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" "99556b2fbf73dc3dcb43ed674774987ef642dfd4bcd79006314946afdfc294fa"`
[INFO] running `"docker" "rm" "-f" "99556b2fbf73dc3dcb43ed674774987ef642dfd4bcd79006314946afdfc294fa"`
[INFO] [stdout] 99556b2fbf73dc3dcb43ed674774987ef642dfd4bcd79006314946afdfc294fa