[INFO] updating cached repository Alfriadox/Bf-Interpreter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Alfriadox/Bf-Interpreter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Alfriadox/Bf-Interpreter" "work/ex/beta-1.38-1/sources/1.37.0/gh/Alfriadox/Bf-Interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Alfriadox/Bf-Interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Alfriadox/Bf-Interpreter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alfriadox/Bf-Interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alfriadox/Bf-Interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 981932dddddedce49dc60583c0fc3f5e0808fd5a
[INFO] sha for GitHub repo Alfriadox/Bf-Interpreter: 981932dddddedce49dc60583c0fc3f5e0808fd5a
[INFO] validating manifest of Alfriadox/Bf-Interpreter 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 Alfriadox/Bf-Interpreter 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 Alfriadox/Bf-Interpreter
[INFO] finished frobbing Alfriadox/Bf-Interpreter
[INFO] frobbed toml for Alfriadox/Bf-Interpreter written to work/ex/beta-1.38-1/sources/1.37.0/gh/Alfriadox/Bf-Interpreter/Cargo.toml
[INFO] started frobbing Alfriadox/Bf-Interpreter
[INFO] finished frobbing Alfriadox/Bf-Interpreter
[INFO] frobbed toml for Alfriadox/Bf-Interpreter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alfriadox/Bf-Interpreter/Cargo.toml
[INFO] crate Alfriadox/Bf-Interpreter 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Alfriadox/Bf-Interpreter/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 Alfriadox/Bf-Interpreter 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-1/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/Alfriadox/Bf-Interpreter:/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] 761095757f8926fce9db9e80e88472bb6368e0d4cba5d7cf379105ff7e77cfbc
[INFO] running `"docker" "start" "-a" "761095757f8926fce9db9e80e88472bb6368e0d4cba5d7cf379105ff7e77cfbc"`
[INFO] [stderr]    Compiling bf_interpreter v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `swap` is never read
[INFO] [stderr]   --> src/main.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 |           swap = [0];
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "761095757f8926fce9db9e80e88472bb6368e0d4cba5d7cf379105ff7e77cfbc"`
[INFO] running `"docker" "rm" "-f" "761095757f8926fce9db9e80e88472bb6368e0d4cba5d7cf379105ff7e77cfbc"`
[INFO] [stdout] 761095757f8926fce9db9e80e88472bb6368e0d4cba5d7cf379105ff7e77cfbc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/Alfriadox/Bf-Interpreter:/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] 166eef0b77539a53467563399f4b37b1d6b7e8d01a3a2e51329cdb25e4ff0a6a
[INFO] running `"docker" "start" "-a" "166eef0b77539a53467563399f4b37b1d6b7e8d01a3a2e51329cdb25e4ff0a6a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bf_interpreter v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `swap` is never read
[INFO] [stderr]   --> src/main.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 |           swap = [0];
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "166eef0b77539a53467563399f4b37b1d6b7e8d01a3a2e51329cdb25e4ff0a6a"`
[INFO] running `"docker" "rm" "-f" "166eef0b77539a53467563399f4b37b1d6b7e8d01a3a2e51329cdb25e4ff0a6a"`
[INFO] [stdout] 166eef0b77539a53467563399f4b37b1d6b7e8d01a3a2e51329cdb25e4ff0a6a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/Alfriadox/Bf-Interpreter:/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] 02a88976a6c7008dd92c061a7c8a1ea7df8dde41de1f0e37236aa21422fd2828
[INFO] running `"docker" "start" "-a" "02a88976a6c7008dd92c061a7c8a1ea7df8dde41de1f0e37236aa21422fd2828"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bf_interpreter-41ef78b3dbdff305
[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" "02a88976a6c7008dd92c061a7c8a1ea7df8dde41de1f0e37236aa21422fd2828"`
[INFO] running `"docker" "rm" "-f" "02a88976a6c7008dd92c061a7c8a1ea7df8dde41de1f0e37236aa21422fd2828"`
[INFO] [stdout] 02a88976a6c7008dd92c061a7c8a1ea7df8dde41de1f0e37236aa21422fd2828