[INFO] updating cached repository owensc84/synacor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/owensc84/synacor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/owensc84/synacor" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/owensc84/synacor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/owensc84/synacor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/owensc84/synacor" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/owensc84/synacor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/owensc84/synacor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 387e46f9144f4e7616b704b430ff8677c93e4179
[INFO] sha for GitHub repo owensc84/synacor: 387e46f9144f4e7616b704b430ff8677c93e4179
[INFO] validating manifest of owensc84/synacor on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of owensc84/synacor on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing owensc84/synacor
[INFO] finished frobbing owensc84/synacor
[INFO] frobbed toml for owensc84/synacor written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/owensc84/synacor/Cargo.toml
[INFO] started frobbing owensc84/synacor
[INFO] finished frobbing owensc84/synacor
[INFO] frobbed toml for owensc84/synacor written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/owensc84/synacor/Cargo.toml
[INFO] crate owensc84/synacor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking owensc84/synacor against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/owensc84/synacor:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 046a6e87d7efa294724234919b4a93cbd9ad6b05bcd84294318678e8c74b6a79
[INFO] running `"docker" "start" "-a" "046a6e87d7efa294724234919b4a93cbd9ad6b05bcd84294318678e8c74b6a79"`
[INFO] [stderr]     Checking synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:168:16
[INFO] [stderr]     |
[INFO] [stderr] 168 |             traceptr &= (TRACE_SIZE-1);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:349:28
[INFO] [stderr]     |
[INFO] [stderr] 349 |                             register[reg_num] = (get_val(b, &register) & get_val(c, &register));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:364:28
[INFO] [stderr]     |
[INFO] [stderr] 364 |                             register[reg_num] = (get_val(b, &register) | get_val(c, &register));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:168:16
[INFO] [stderr]     |
[INFO] [stderr] 168 |             traceptr &= (TRACE_SIZE-1);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:349:28
[INFO] [stderr]     |
[INFO] [stderr] 349 |                             register[reg_num] = (get_val(b, &register) & get_val(c, &register));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:364:28
[INFO] [stderr]     |
[INFO] [stderr] 364 |                             register[reg_num] = (get_val(b, &register) | get_val(c, &register));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]   --> src/main.rs:96:58
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn call_trace(v: &[usize], ptr: usize, memory: Vec<u16>, pc: usize, register:&Vec<u16>) {
[INFO] [stderr]    |                                                          ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exs` is never read
[INFO] [stderr]    --> src/main.rs:154:11
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut exs: i32 = 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] warning: unused variable: `pc`
[INFO] [stderr]   --> src/main.rs:96:58
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn call_trace(v: &[usize], ptr: usize, memory: Vec<u16>, pc: usize, register:&Vec<u16>) {
[INFO] [stderr]    |                                                          ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exs` is never read
[INFO] [stderr]    --> src/main.rs:154:11
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut exs: i32 = 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] warning: function is never used: `is_reg`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn is_reg(operand: u16) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalExecutions` should have a snake case name
[INFO] [stderr]    --> src/main.rs:145:10
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut totalExecutions = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `total_executions`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_reg`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn is_reg(operand: u16) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `totalExecutions` should have a snake case name
[INFO] [stderr]    --> src/main.rs:145:10
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut totalExecutions = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `total_executions`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "046a6e87d7efa294724234919b4a93cbd9ad6b05bcd84294318678e8c74b6a79"`
[INFO] running `"docker" "rm" "-f" "046a6e87d7efa294724234919b4a93cbd9ad6b05bcd84294318678e8c74b6a79"`
[INFO] [stdout] 046a6e87d7efa294724234919b4a93cbd9ad6b05bcd84294318678e8c74b6a79