[INFO] updating cached repository zero-frost/church-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zero-frost/church-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zero-frost/church-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/zero-frost/church-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zero-frost/church-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zero-frost/church-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6247f8c86a2f1457e7d27098701ca55c085142ff
[INFO] sha for GitHub repo zero-frost/church-rs: 6247f8c86a2f1457e7d27098701ca55c085142ff
[INFO] validating manifest of zero-frost/church-rs 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 zero-frost/church-rs 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 zero-frost/church-rs
[INFO] finished frobbing zero-frost/church-rs
[INFO] frobbed toml for zero-frost/church-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/zero-frost/church-rs/Cargo.toml
[INFO] started frobbing zero-frost/church-rs
[INFO] finished frobbing zero-frost/church-rs
[INFO] frobbed toml for zero-frost/church-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs/Cargo.toml
[INFO] crate zero-frost/church-rs 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 zero-frost/church-rs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4bddd05542c801237499c14f356e16249d98d4319cdc2882430877d73d0d7e46
[INFO] running `"docker" "start" "-a" "4bddd05542c801237499c14f356e16249d98d4319cdc2882430877d73d0d7e46"`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling church v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ------------------- matches any value
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ChurchIntParseError`
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ChurchIntParseError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ChurchBoolParseError`
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ChurchBoolParseError`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ret`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     Err(ret) => Err(ChurchParseError::ChurchIntParseError),
[INFO] [stderr]    |                         ^^^ help: consider prefixing with an underscore: `_ret`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ChurchIntParseError` should have a snake case name
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `church_int_parse_error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ChurchBoolParseError` should have a snake case name
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `church_bool_parse_error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `"docker" "inspect" "4bddd05542c801237499c14f356e16249d98d4319cdc2882430877d73d0d7e46"`
[INFO] running `"docker" "rm" "-f" "4bddd05542c801237499c14f356e16249d98d4319cdc2882430877d73d0d7e46"`
[INFO] [stdout] 4bddd05542c801237499c14f356e16249d98d4319cdc2882430877d73d0d7e46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4bbdeba17d3f0986ab9ec002594c49deaccc5908d9e2aa0ff4d0931af330b0e2
[INFO] running `"docker" "start" "-a" "4bbdeba17d3f0986ab9ec002594c49deaccc5908d9e2aa0ff4d0931af330b0e2"`
[INFO] [stderr]    Compiling church v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ------------------- matches any value
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ChurchIntParseError`
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ChurchIntParseError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ChurchBoolParseError`
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ChurchBoolParseError`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ret`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     Err(ret) => Err(ChurchParseError::ChurchIntParseError),
[INFO] [stderr]    |                         ^^^ help: consider prefixing with an underscore: `_ret`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ChurchIntParseError` should have a snake case name
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             ChurchIntParseError => "Failed to parse value into integer",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `church_int_parse_error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ChurchBoolParseError` should have a snake case name
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             ChurchBoolParseError => "Failed to parse value into boolean",
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `church_bool_parse_error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "4bbdeba17d3f0986ab9ec002594c49deaccc5908d9e2aa0ff4d0931af330b0e2"`
[INFO] running `"docker" "rm" "-f" "4bbdeba17d3f0986ab9ec002594c49deaccc5908d9e2aa0ff4d0931af330b0e2"`
[INFO] [stdout] 4bbdeba17d3f0986ab9ec002594c49deaccc5908d9e2aa0ff4d0931af330b0e2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zero-frost/church-rs:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 72234e21f08cc1a9321654e11eb6a42e8c490db55f70a3ee76a4c21b2864dc34
[INFO] running `"docker" "start" "-a" "72234e21f08cc1a9321654e11eb6a42e8c490db55f70a3ee76a4c21b2864dc34"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/church-5b161d8275ef83f2
[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" "72234e21f08cc1a9321654e11eb6a42e8c490db55f70a3ee76a4c21b2864dc34"`
[INFO] running `"docker" "rm" "-f" "72234e21f08cc1a9321654e11eb6a42e8c490db55f70a3ee76a4c21b2864dc34"`
[INFO] [stdout] 72234e21f08cc1a9321654e11eb6a42e8c490db55f70a3ee76a4c21b2864dc34