[INFO] updating cached repository arch-sim/alpha_sim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arch-sim/alpha_sim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arch-sim/alpha_sim" "work/ex/beta-1.38-1/sources/1.37.0/gh/arch-sim/alpha_sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arch-sim/alpha_sim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arch-sim/alpha_sim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arch-sim/alpha_sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arch-sim/alpha_sim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 71f47b4d32829044b460456e07263de63c0183ef
[INFO] sha for GitHub repo arch-sim/alpha_sim: 71f47b4d32829044b460456e07263de63c0183ef
[INFO] validating manifest of arch-sim/alpha_sim 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 arch-sim/alpha_sim 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 arch-sim/alpha_sim
[INFO] finished frobbing arch-sim/alpha_sim
[INFO] frobbed toml for arch-sim/alpha_sim written to work/ex/beta-1.38-1/sources/1.37.0/gh/arch-sim/alpha_sim/Cargo.toml
[INFO] started frobbing arch-sim/alpha_sim
[INFO] finished frobbing arch-sim/alpha_sim
[INFO] frobbed toml for arch-sim/alpha_sim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arch-sim/alpha_sim/Cargo.toml
[INFO] crate arch-sim/alpha_sim 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing arch-sim/alpha_sim 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-5/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/arch-sim/alpha_sim:/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] c53ec6b7c3efb210f62a947fc9853ab14154029e3fc25a638af4c99683231001
[INFO] running `"docker" "start" "-a" "c53ec6b7c3efb210f62a947fc9853ab14154029e3fc25a638af4c99683231001"`
[INFO] [stderr]    Compiling alpha_sim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type `data_t` should have an upper camel case name
[INFO] [stderr]   --> src/define.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type data_t = u64;
[INFO] [stderr]    |          ^^^^^^ help: convert the identifier to upper camel case: `DataT`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prog`
[INFO] [stderr]   --> src/sim_chip.rs:20:16
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(prog: &str, opt: &[String]) -> SimChip {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_prog`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]   --> src/sim_chip.rs:20:28
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(prog: &str, opt: &[String]) -> SimChip {
[INFO] [stderr]    |                            ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IMSK`
[INFO] [stderr]   --> src/sim_chip.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const IMSK: i64 = 0x0ffff; /* mask of inst_buf */
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "c53ec6b7c3efb210f62a947fc9853ab14154029e3fc25a638af4c99683231001"`
[INFO] running `"docker" "rm" "-f" "c53ec6b7c3efb210f62a947fc9853ab14154029e3fc25a638af4c99683231001"`
[INFO] [stdout] c53ec6b7c3efb210f62a947fc9853ab14154029e3fc25a638af4c99683231001
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/arch-sim/alpha_sim:/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] 9a1fa5c262ca4b0b747e96b28eb8cd7948d9732197c756f37ff1874a2e15cbc7
[INFO] running `"docker" "start" "-a" "9a1fa5c262ca4b0b747e96b28eb8cd7948d9732197c756f37ff1874a2e15cbc7"`
[INFO] [stderr]    Compiling alpha_sim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: type `data_t` should have an upper camel case name
[INFO] [stderr]   --> src/define.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type data_t = u64;
[INFO] [stderr]    |          ^^^^^^ help: convert the identifier to upper camel case: `DataT`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prog`
[INFO] [stderr]   --> src/sim_chip.rs:20:16
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(prog: &str, opt: &[String]) -> SimChip {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_prog`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opt`
[INFO] [stderr]   --> src/sim_chip.rs:20:28
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(prog: &str, opt: &[String]) -> SimChip {
[INFO] [stderr]    |                            ^^^ help: consider prefixing with an underscore: `_opt`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IMSK`
[INFO] [stderr]   --> src/sim_chip.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const IMSK: i64 = 0x0ffff; /* mask of inst_buf */
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "9a1fa5c262ca4b0b747e96b28eb8cd7948d9732197c756f37ff1874a2e15cbc7"`
[INFO] running `"docker" "rm" "-f" "9a1fa5c262ca4b0b747e96b28eb8cd7948d9732197c756f37ff1874a2e15cbc7"`
[INFO] [stdout] 9a1fa5c262ca4b0b747e96b28eb8cd7948d9732197c756f37ff1874a2e15cbc7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/arch-sim/alpha_sim:/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] fa575ee4cd60ec5b93d8123314a9eb606c2a0ad7da3575fc728e74ad76e1b07f
[INFO] running `"docker" "start" "-a" "fa575ee4cd60ec5b93d8123314a9eb606c2a0ad7da3575fc728e74ad76e1b07f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/alpha_sim-2d56e58a69554758
[INFO] [stderr]      Running /opt/crater/target/debug/deps/alpha_sim-28a8ba915289680c
[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] [stderr]    Doc-tests alpha_sim
[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" "fa575ee4cd60ec5b93d8123314a9eb606c2a0ad7da3575fc728e74ad76e1b07f"`
[INFO] running `"docker" "rm" "-f" "fa575ee4cd60ec5b93d8123314a9eb606c2a0ad7da3575fc728e74ad76e1b07f"`
[INFO] [stdout] fa575ee4cd60ec5b93d8123314a9eb606c2a0ad7da3575fc728e74ad76e1b07f