[INFO] updating cached repository mihyaeru21/brainfuck-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mihyaeru21/brainfuck-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mihyaeru21/brainfuck-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/mihyaeru21/brainfuck-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mihyaeru21/brainfuck-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mihyaeru21/brainfuck-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mihyaeru21/brainfuck-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mihyaeru21/brainfuck-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 165b7eff7588e573be39072566c7f8f7d0d8cdb5
[INFO] sha for GitHub repo mihyaeru21/brainfuck-rs: 165b7eff7588e573be39072566c7f8f7d0d8cdb5
[INFO] validating manifest of mihyaeru21/brainfuck-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 mihyaeru21/brainfuck-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 mihyaeru21/brainfuck-rs
[INFO] finished frobbing mihyaeru21/brainfuck-rs
[INFO] frobbed toml for mihyaeru21/brainfuck-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/mihyaeru21/brainfuck-rs/Cargo.toml
[INFO] started frobbing mihyaeru21/brainfuck-rs
[INFO] finished frobbing mihyaeru21/brainfuck-rs
[INFO] frobbed toml for mihyaeru21/brainfuck-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mihyaeru21/brainfuck-rs/Cargo.toml
[INFO] crate mihyaeru21/brainfuck-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mihyaeru21/brainfuck-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-4/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/mihyaeru21/brainfuck-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] aecfad5325273f9fd0b0bd2724b0a113b919027afccc066efba372c37d9e0294
[INFO] running `"docker" "start" "-a" "aecfad5325273f9fd0b0bd2724b0a113b919027afccc066efba372c37d9e0294"`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut value = self.get_mut()?;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut value = self.get_mut()?;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let mut v = self.get_mut()?;
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "aecfad5325273f9fd0b0bd2724b0a113b919027afccc066efba372c37d9e0294"`
[INFO] running `"docker" "rm" "-f" "aecfad5325273f9fd0b0bd2724b0a113b919027afccc066efba372c37d9e0294"`
[INFO] [stdout] aecfad5325273f9fd0b0bd2724b0a113b919027afccc066efba372c37d9e0294
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/mihyaeru21/brainfuck-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] 955698469a4b2cc872ac060ed2b4039cfd9bfc99ea611fb4a3b617507ad9468e
[INFO] running `"docker" "start" "-a" "955698469a4b2cc872ac060ed2b4039cfd9bfc99ea611fb4a3b617507ad9468e"`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut value = self.get_mut()?;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut value = self.get_mut()?;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let mut v = self.get_mut()?;
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "955698469a4b2cc872ac060ed2b4039cfd9bfc99ea611fb4a3b617507ad9468e"`
[INFO] running `"docker" "rm" "-f" "955698469a4b2cc872ac060ed2b4039cfd9bfc99ea611fb4a3b617507ad9468e"`
[INFO] [stdout] 955698469a4b2cc872ac060ed2b4039cfd9bfc99ea611fb4a3b617507ad9468e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/mihyaeru21/brainfuck-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] f60f5f4bb5e7be542758e6781822bcfcf7f6e2ae702abaab02ef1b49f9ff4b98
[INFO] running `"docker" "start" "-a" "f60f5f4bb5e7be542758e6781822bcfcf7f6e2ae702abaab02ef1b49f9ff4b98"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-38c9b94c5e92f665
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-9fd329c97a108d8e
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/interpreter_test-e027c937080108db
[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 1 test
[INFO] [stdout] test run ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests brainfuck
[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" "f60f5f4bb5e7be542758e6781822bcfcf7f6e2ae702abaab02ef1b49f9ff4b98"`
[INFO] running `"docker" "rm" "-f" "f60f5f4bb5e7be542758e6781822bcfcf7f6e2ae702abaab02ef1b49f9ff4b98"`
[INFO] [stdout] f60f5f4bb5e7be542758e6781822bcfcf7f6e2ae702abaab02ef1b49f9ff4b98