[INFO] updating cached repository rileylyman/riscv-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rileylyman/riscv-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rileylyman/riscv-in-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/riscv-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/riscv-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rileylyman/riscv-in-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/riscv-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/riscv-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ee02cdeca20ba086b645693b51567342ea1c2c4
[INFO] sha for GitHub repo rileylyman/riscv-in-rust: 1ee02cdeca20ba086b645693b51567342ea1c2c4
[INFO] validating manifest of rileylyman/riscv-in-rust 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 rileylyman/riscv-in-rust 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 rileylyman/riscv-in-rust
[INFO] finished frobbing rileylyman/riscv-in-rust
[INFO] frobbed toml for rileylyman/riscv-in-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/rileylyman/riscv-in-rust/Cargo.toml
[INFO] started frobbing rileylyman/riscv-in-rust
[INFO] finished frobbing rileylyman/riscv-in-rust
[INFO] frobbed toml for rileylyman/riscv-in-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rileylyman/riscv-in-rust/Cargo.toml
[INFO] crate rileylyman/riscv-in-rust 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rileylyman/riscv-in-rust 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-7/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/rileylyman/riscv-in-rust:/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] cc2525fe87cd01e22b054ecb3fbf149f79e771bb768cca13cfba884973e4e996
[INFO] running `"docker" "start" "-a" "cc2525fe87cd01e22b054ecb3fbf149f79e771bb768cca13cfba884973e4e996"`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling riscv-emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `machine_code`
[INFO] [stderr]   --> src/assembler/mod.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let machine_code = assemble(&base_instructions);
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_machine_code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem`
[INFO] [stderr]  --> src/assembler/mod.rs:7:42
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stderr]   |                                          ^^^ help: consider prefixing with an underscore: `_mem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `imem`
[INFO] [stderr]  --> src/assembler/mod.rs:7:58
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stderr]   |                                                          ^^^^ help: consider prefixing with an underscore: `_imem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instructions`
[INFO] [stderr]   --> src/assembler/mod.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn assemble(instructions: &Vec<String>) {
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_instructions`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INST_WIDTH`
[INFO] [stderr]  --> src/assembler/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const INST_WIDTH: usize = 32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `"docker" "inspect" "cc2525fe87cd01e22b054ecb3fbf149f79e771bb768cca13cfba884973e4e996"`
[INFO] running `"docker" "rm" "-f" "cc2525fe87cd01e22b054ecb3fbf149f79e771bb768cca13cfba884973e4e996"`
[INFO] [stdout] cc2525fe87cd01e22b054ecb3fbf149f79e771bb768cca13cfba884973e4e996
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/rileylyman/riscv-in-rust:/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] 306ab8d0d6e16af389a28067d7c5a79643cd2ed20d439f83d9dbdb2f43244733
[INFO] running `"docker" "start" "-a" "306ab8d0d6e16af389a28067d7c5a79643cd2ed20d439f83d9dbdb2f43244733"`
[INFO] [stderr]    Compiling riscv-emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `machine_code`
[INFO] [stderr]   --> src/assembler/mod.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let machine_code = assemble(&base_instructions);
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_machine_code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem`
[INFO] [stderr]  --> src/assembler/mod.rs:7:42
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stderr]   |                                          ^^^ help: consider prefixing with an underscore: `_mem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `imem`
[INFO] [stderr]  --> src/assembler/mod.rs:7:58
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () {
[INFO] [stderr]   |                                                          ^^^^ help: consider prefixing with an underscore: `_imem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instructions`
[INFO] [stderr]   --> src/assembler/mod.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn assemble(instructions: &Vec<String>) {
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_instructions`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INST_WIDTH`
[INFO] [stderr]  --> src/assembler/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const INST_WIDTH: usize = 32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "306ab8d0d6e16af389a28067d7c5a79643cd2ed20d439f83d9dbdb2f43244733"`
[INFO] running `"docker" "rm" "-f" "306ab8d0d6e16af389a28067d7c5a79643cd2ed20d439f83d9dbdb2f43244733"`
[INFO] [stdout] 306ab8d0d6e16af389a28067d7c5a79643cd2ed20d439f83d9dbdb2f43244733
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/rileylyman/riscv-in-rust:/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] 1574c875317502397eed588a6c9bba31feff40956a68e7c8ac782a6a11526f81
[INFO] running `"docker" "start" "-a" "1574c875317502397eed588a6c9bba31feff40956a68e7c8ac782a6a11526f81"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/riscv_emulator-13010bca2d39be78
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test decoder::decoder_test::test_decode_s_immediate ... ok
[INFO] [stdout] test decoder::decoder_test::test_decode_sb_immediate ... ok
[INFO] [stdout] test decoder::decoder_test::test_decode_i_immediate ... ok
[INFO] [stdout] test decoder::decoder_test::test_decode_uj_immediate ... ok
[INFO] [stdout] test decoder::decoder_test::test_decode_u_immediate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1574c875317502397eed588a6c9bba31feff40956a68e7c8ac782a6a11526f81"`
[INFO] running `"docker" "rm" "-f" "1574c875317502397eed588a6c9bba31feff40956a68e7c8ac782a6a11526f81"`
[INFO] [stdout] 1574c875317502397eed588a6c9bba31feff40956a68e7c8ac782a6a11526f81