[INFO] updating cached repository zargony/synacor-challenge
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zargony/synacor-challenge
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zargony/synacor-challenge" "work/ex/beta-1.37-6/sources/1.36.0/gh/zargony/synacor-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zargony/synacor-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zargony/synacor-challenge" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zargony/synacor-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zargony/synacor-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 07b7a31e7ad31202e31007eac05fe6173bf7ff60
[INFO] sha for GitHub repo zargony/synacor-challenge: 07b7a31e7ad31202e31007eac05fe6173bf7ff60
[INFO] validating manifest of zargony/synacor-challenge 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 zargony/synacor-challenge 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 zargony/synacor-challenge
[INFO] finished frobbing zargony/synacor-challenge
[INFO] frobbed toml for zargony/synacor-challenge written to work/ex/beta-1.37-6/sources/1.36.0/gh/zargony/synacor-challenge/Cargo.toml
[INFO] started frobbing zargony/synacor-challenge
[INFO] finished frobbing zargony/synacor-challenge
[INFO] frobbed toml for zargony/synacor-challenge written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zargony/synacor-challenge/Cargo.toml
[INFO] crate zargony/synacor-challenge 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 zargony/synacor-challenge 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-6/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/zargony/synacor-challenge:/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] 8c241d65b5148453b82b33b23aa1469c90cb88994a571827f4c8a555224dd483
[INFO] running `"docker" "start" "-a" "8c241d65b5148453b82b33b23aa1469c90cb88994a571827f4c8a555224dd483"`
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling synacor-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `jump`
[INFO] [stderr]    --> src/memory.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn jump(&mut self, addr: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.65s
[INFO] running `"docker" "inspect" "8c241d65b5148453b82b33b23aa1469c90cb88994a571827f4c8a555224dd483"`
[INFO] running `"docker" "rm" "-f" "8c241d65b5148453b82b33b23aa1469c90cb88994a571827f4c8a555224dd483"`
[INFO] [stdout] 8c241d65b5148453b82b33b23aa1469c90cb88994a571827f4c8a555224dd483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/zargony/synacor-challenge:/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] 9a6ecc6f2c6e3aa7626726130324443890b8234b65e80b132de561e25130c81f
[INFO] running `"docker" "start" "-a" "9a6ecc6f2c6e3aa7626726130324443890b8234b65e80b132de561e25130c81f"`
[INFO] [stderr]    Compiling synacor-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "9a6ecc6f2c6e3aa7626726130324443890b8234b65e80b132de561e25130c81f"`
[INFO] running `"docker" "rm" "-f" "9a6ecc6f2c6e3aa7626726130324443890b8234b65e80b132de561e25130c81f"`
[INFO] [stdout] 9a6ecc6f2c6e3aa7626726130324443890b8234b65e80b132de561e25130c81f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/zargony/synacor-challenge:/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] 7534ff6ccbf390d5f3ebde2cd60d12ab958a1d2ed92e3c5df74f0006fdaae8b7
[INFO] running `"docker" "start" "-a" "7534ff6ccbf390d5f3ebde2cd60d12ab958a1d2ed92e3c5df74f0006fdaae8b7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/synacor_challenge-820018107edbf2d3
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test memory::tests::creating ... ok
[INFO] [stdout] test memory::tests::basic_access ... ok
[INFO] [stdout] test vm::tests::operands ... ok
[INFO] [stdout] test memory::tests::pointer_operations ... ok
[INFO] [stdout] test vm::tests::vm ... ok
[INFO] [stdout] test vm::tests::operand_fetching ... ok
[INFO] [stdout] test vm::tests::instruction_fetching ... ok
[INFO] [stdout] test memory::tests::loading ... ok
[INFO] [stdout] test memory::tests::loading_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7534ff6ccbf390d5f3ebde2cd60d12ab958a1d2ed92e3c5df74f0006fdaae8b7"`
[INFO] running `"docker" "rm" "-f" "7534ff6ccbf390d5f3ebde2cd60d12ab958a1d2ed92e3c5df74f0006fdaae8b7"`
[INFO] [stdout] 7534ff6ccbf390d5f3ebde2cd60d12ab958a1d2ed92e3c5df74f0006fdaae8b7