[INFO] updating cached repository ThatOtherPerson/forth
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ThatOtherPerson/forth
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ThatOtherPerson/forth" "work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ThatOtherPerson/forth" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatOtherPerson/forth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatOtherPerson/forth'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f2eb40633f3710e75ca391e9c7055a695ea1c31
[INFO] sha for GitHub repo ThatOtherPerson/forth: 9f2eb40633f3710e75ca391e9c7055a695ea1c31
[INFO] validating manifest of ThatOtherPerson/forth 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 ThatOtherPerson/forth 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 ThatOtherPerson/forth
[INFO] finished frobbing ThatOtherPerson/forth
[INFO] frobbed toml for ThatOtherPerson/forth written to work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth/Cargo.toml
[INFO] started frobbing ThatOtherPerson/forth
[INFO] finished frobbing ThatOtherPerson/forth
[INFO] frobbed toml for ThatOtherPerson/forth written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatOtherPerson/forth/Cargo.toml
[INFO] crate ThatOtherPerson/forth 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 ThatOtherPerson/forth 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth:/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] 8dbc45a1fc2a3621c6674d43694cf85539b45b704aea29ce20d79a33382b5716
[INFO] running `"docker" "start" "-a" "8dbc45a1fc2a3621c6674d43694cf85539b45b704aea29ce20d79a33382b5716"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling forth v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `unary_word`
[INFO] [stderr]   --> src/stdlib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stderr] 12 | | where
[INFO] [stderr] 13 | |     F: FnMut(i32) -> i32,
[INFO] [stderr] 14 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         .ok_or("Stack underflow".to_string())
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "8dbc45a1fc2a3621c6674d43694cf85539b45b704aea29ce20d79a33382b5716"`
[INFO] running `"docker" "rm" "-f" "8dbc45a1fc2a3621c6674d43694cf85539b45b704aea29ce20d79a33382b5716"`
[INFO] [stdout] 8dbc45a1fc2a3621c6674d43694cf85539b45b704aea29ce20d79a33382b5716
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth:/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] b1873df807f62e0da9cdc1bec913c76519b57eaff71dc67fd1a3e2f6177a9a35
[INFO] running `"docker" "start" "-a" "b1873df807f62e0da9cdc1bec913c76519b57eaff71dc67fd1a3e2f6177a9a35"`
[INFO] [stderr]    Compiling forth v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `unary_word`
[INFO] [stderr]   --> src/stdlib.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stderr] 12 | | where
[INFO] [stderr] 13 | |     F: FnMut(i32) -> i32,
[INFO] [stderr] 14 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         .ok_or("Stack underflow".to_string())
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "b1873df807f62e0da9cdc1bec913c76519b57eaff71dc67fd1a3e2f6177a9a35"`
[INFO] running `"docker" "rm" "-f" "b1873df807f62e0da9cdc1bec913c76519b57eaff71dc67fd1a3e2f6177a9a35"`
[INFO] [stdout] b1873df807f62e0da9cdc1bec913c76519b57eaff71dc67fd1a3e2f6177a9a35
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatOtherPerson/forth:/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] 29d7d6b9c097b3c8105ac53c7c4161d87783934761efc9f790edf38b3c1745db
[INFO] running `"docker" "start" "-a" "29d7d6b9c097b3c8105ac53c7c4161d87783934761efc9f790edf38b3c1745db"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/forth-c124db7cced62cc0
[INFO] [stderr]    Doc-tests forth
[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] [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" "29d7d6b9c097b3c8105ac53c7c4161d87783934761efc9f790edf38b3c1745db"`
[INFO] running `"docker" "rm" "-f" "29d7d6b9c097b3c8105ac53c7c4161d87783934761efc9f790edf38b3c1745db"`
[INFO] [stdout] 29d7d6b9c097b3c8105ac53c7c4161d87783934761efc9f790edf38b3c1745db