[INFO] updating cached repository galileorobotics/snek
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/galileorobotics/snek
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/galileorobotics/snek" "work/ex/beta-1.38-1/sources/1.37.0/gh/galileorobotics/snek"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/galileorobotics/snek'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/galileorobotics/snek" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/galileorobotics/snek"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/galileorobotics/snek'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 03a20b22876e91b749d6ccb83e0b622094eb3473
[INFO] sha for GitHub repo galileorobotics/snek: 03a20b22876e91b749d6ccb83e0b622094eb3473
[INFO] validating manifest of galileorobotics/snek 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 galileorobotics/snek 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 galileorobotics/snek
[INFO] finished frobbing galileorobotics/snek
[INFO] frobbed toml for galileorobotics/snek written to work/ex/beta-1.38-1/sources/1.37.0/gh/galileorobotics/snek/Cargo.toml
[INFO] started frobbing galileorobotics/snek
[INFO] finished frobbing galileorobotics/snek
[INFO] frobbed toml for galileorobotics/snek written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/galileorobotics/snek/Cargo.toml
[INFO] crate galileorobotics/snek 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 galileorobotics/snek 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-2/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/galileorobotics/snek:/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] ac36e4395ec4f109867c7d31b44edacb81c880cd5ab1a6805978dddcd185d91b
[INFO] running `"docker" "start" "-a" "ac36e4395ec4f109867c7d31b44edacb81c880cd5ab1a6805978dddcd185d91b"`
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/main.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_ch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/main.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    |                       ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdout`
[INFO] [stderr]   --> src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn draw(stdout: &Stdout) {}
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_stdout`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     x: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     y: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parts`
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     parts: Vec<Position>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn draw(stdout: &Stdout) {}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_at`
[INFO] [stderr]   --> src/main.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `"docker" "inspect" "ac36e4395ec4f109867c7d31b44edacb81c880cd5ab1a6805978dddcd185d91b"`
[INFO] running `"docker" "rm" "-f" "ac36e4395ec4f109867c7d31b44edacb81c880cd5ab1a6805978dddcd185d91b"`
[INFO] [stdout] ac36e4395ec4f109867c7d31b44edacb81c880cd5ab1a6805978dddcd185d91b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/galileorobotics/snek:/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] 69688e695239af77326f00d383c2b40b0d1ff602c177f8cb13d49f57415708e5
[INFO] running `"docker" "start" "-a" "69688e695239af77326f00d383c2b40b0d1ff602c177f8cb13d49f57415708e5"`
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/main.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_ch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/main.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    |                       ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdout`
[INFO] [stderr]   --> src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn draw(stdout: &Stdout) {}
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_stdout`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     x: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     y: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parts`
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     parts: Vec<Position>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn draw(stdout: &Stdout) {}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_at`
[INFO] [stderr]   --> src/main.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn write_at(ch: char, pos: Position) {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "69688e695239af77326f00d383c2b40b0d1ff602c177f8cb13d49f57415708e5"`
[INFO] running `"docker" "rm" "-f" "69688e695239af77326f00d383c2b40b0d1ff602c177f8cb13d49f57415708e5"`
[INFO] [stdout] 69688e695239af77326f00d383c2b40b0d1ff602c177f8cb13d49f57415708e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/galileorobotics/snek:/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] f1327b4485c661ab43473f0277046e03e3d9e259a14993ac456fbe6b345c8c66
[INFO] running `"docker" "start" "-a" "f1327b4485c661ab43473f0277046e03e3d9e259a14993ac456fbe6b345c8c66"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/snek-1832c091c635adf4
[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" "f1327b4485c661ab43473f0277046e03e3d9e259a14993ac456fbe6b345c8c66"`
[INFO] running `"docker" "rm" "-f" "f1327b4485c661ab43473f0277046e03e3d9e259a14993ac456fbe6b345c8c66"`
[INFO] [stdout] f1327b4485c661ab43473f0277046e03e3d9e259a14993ac456fbe6b345c8c66