[INFO] updating cached repository gregorholzmann/rust-to-wasm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gregorholzmann/rust-to-wasm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gregorholzmann/rust-to-wasm" "work/ex/beta-1.38-1/sources/1.37.0/gh/gregorholzmann/rust-to-wasm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gregorholzmann/rust-to-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gregorholzmann/rust-to-wasm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gregorholzmann/rust-to-wasm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gregorholzmann/rust-to-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c04cd113d3bc93e6d41b58c3cc4d689321c05bfe
[INFO] sha for GitHub repo gregorholzmann/rust-to-wasm: c04cd113d3bc93e6d41b58c3cc4d689321c05bfe
[INFO] validating manifest of gregorholzmann/rust-to-wasm 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 gregorholzmann/rust-to-wasm 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 gregorholzmann/rust-to-wasm
[INFO] finished frobbing gregorholzmann/rust-to-wasm
[INFO] frobbed toml for gregorholzmann/rust-to-wasm written to work/ex/beta-1.38-1/sources/1.37.0/gh/gregorholzmann/rust-to-wasm/Cargo.toml
[INFO] started frobbing gregorholzmann/rust-to-wasm
[INFO] finished frobbing gregorholzmann/rust-to-wasm
[INFO] frobbed toml for gregorholzmann/rust-to-wasm written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gregorholzmann/rust-to-wasm/Cargo.toml
[INFO] crate gregorholzmann/rust-to-wasm 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 gregorholzmann/rust-to-wasm 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-6/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/gregorholzmann/rust-to-wasm:/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] df8d1478a51464843936b6bc2fe0cfc49bbcef149821433b1ce5eb1a071d5d6e
[INFO] running `"docker" "start" "-a" "df8d1478a51464843936b6bc2fe0cfc49bbcef149821433b1ce5eb1a071d5d6e"`
[INFO] [stderr]    Compiling wasm-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `North`
[INFO] [stderr]  --> src/main.rs:3:18
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `East`
[INFO] [stderr]  --> src/main.rs:3:32
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `West`
[INFO] [stderr]  --> src/main.rs:3:38
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                                      ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "df8d1478a51464843936b6bc2fe0cfc49bbcef149821433b1ce5eb1a071d5d6e"`
[INFO] running `"docker" "rm" "-f" "df8d1478a51464843936b6bc2fe0cfc49bbcef149821433b1ce5eb1a071d5d6e"`
[INFO] [stdout] df8d1478a51464843936b6bc2fe0cfc49bbcef149821433b1ce5eb1a071d5d6e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/gregorholzmann/rust-to-wasm:/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] abda6ac5a647cc913a0e9f51534d7fd6ba3e7882db2ddbc4f81f792d53c07e30
[INFO] running `"docker" "start" "-a" "abda6ac5a647cc913a0e9f51534d7fd6ba3e7882db2ddbc4f81f792d53c07e30"`
[INFO] [stderr]    Compiling wasm-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `North`
[INFO] [stderr]  --> src/main.rs:3:18
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `East`
[INFO] [stderr]  --> src/main.rs:3:32
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `West`
[INFO] [stderr]  --> src/main.rs:3:38
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Direction { North, South, East, West }
[INFO] [stderr]   |                                      ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "abda6ac5a647cc913a0e9f51534d7fd6ba3e7882db2ddbc4f81f792d53c07e30"`
[INFO] running `"docker" "rm" "-f" "abda6ac5a647cc913a0e9f51534d7fd6ba3e7882db2ddbc4f81f792d53c07e30"`
[INFO] [stdout] abda6ac5a647cc913a0e9f51534d7fd6ba3e7882db2ddbc4f81f792d53c07e30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/gregorholzmann/rust-to-wasm:/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] c32c0905c7869263d857827299ef91eadd2ceef95e985cd53515ece885deeff9
[INFO] running `"docker" "start" "-a" "c32c0905c7869263d857827299ef91eadd2ceef95e985cd53515ece885deeff9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wasm_demo-2e24f4487a2ee1e0
[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" "c32c0905c7869263d857827299ef91eadd2ceef95e985cd53515ece885deeff9"`
[INFO] running `"docker" "rm" "-f" "c32c0905c7869263d857827299ef91eadd2ceef95e985cd53515ece885deeff9"`
[INFO] [stdout] c32c0905c7869263d857827299ef91eadd2ceef95e985cd53515ece885deeff9