[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/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arch-sim/alpha_sim"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arch-sim/alpha_sim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arch-sim/alpha_sim" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/arch-sim/alpha_sim"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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 master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of arch-sim/alpha_sim on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "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/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking arch-sim/alpha_sim against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dc7710951548a852af84f0629f46863f9f261859334a0fc9f60c5428f22522df
[INFO] running `"docker" "start" "-a" "dc7710951548a852af84f0629f46863f9f261859334a0fc9f60c5428f22522df"`
[INFO] [stderr]     Checking 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] 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 1.11s
[INFO] running `"docker" "inspect" "dc7710951548a852af84f0629f46863f9f261859334a0fc9f60c5428f22522df"`
[INFO] running `"docker" "rm" "-f" "dc7710951548a852af84f0629f46863f9f261859334a0fc9f60c5428f22522df"`
[INFO] [stdout] dc7710951548a852af84f0629f46863f9f261859334a0fc9f60c5428f22522df