[INFO] updating cached repository codec-abc/synacor-challenge-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/codec-abc/synacor-challenge-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/codec-abc/synacor-challenge-rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/codec-abc/synacor-challenge-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/codec-abc/synacor-challenge-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/codec-abc/synacor-challenge-rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/codec-abc/synacor-challenge-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/codec-abc/synacor-challenge-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8106355e9b1dc3a97f41e0c79ff83a12e31d792e
[INFO] sha for GitHub repo codec-abc/synacor-challenge-rust: 8106355e9b1dc3a97f41e0c79ff83a12e31d792e
[INFO] validating manifest of codec-abc/synacor-challenge-rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of codec-abc/synacor-challenge-rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing codec-abc/synacor-challenge-rust
[INFO] finished frobbing codec-abc/synacor-challenge-rust
[INFO] frobbed toml for codec-abc/synacor-challenge-rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/codec-abc/synacor-challenge-rust/Cargo.toml
[INFO] started frobbing codec-abc/synacor-challenge-rust
[INFO] finished frobbing codec-abc/synacor-challenge-rust
[INFO] frobbed toml for codec-abc/synacor-challenge-rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/codec-abc/synacor-challenge-rust/Cargo.toml
[INFO] crate codec-abc/synacor-challenge-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking codec-abc/synacor-challenge-rust against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-3/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/codec-abc/synacor-challenge-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 527757e45abe1484af41bc80c194bef284be52c241261e6daa7e5728dbd13ebb
[INFO] running `"docker" "start" "-a" "527757e45abe1484af41bc80c194bef284be52c241261e6daa7e5728dbd13ebb"`
[INFO] [stderr]     Checking synacor_challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:231:51
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let register_result = read_mem_as_u16_le(mem, (offset + 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 function argument
[INFO] [stderr]    --> src/opcode.rs:232:48
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:256:48
[INFO] [stderr]     |
[INFO] [stderr] 256 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:275:48
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:294:47
[INFO] [stderr]     |
[INFO] [stderr] 294 |     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:295:56
[INFO] [stderr]     |
[INFO] [stderr] 295 |     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:296:57
[INFO] [stderr]     |
[INFO] [stderr] 296 |     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:231:51
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let register_result = read_mem_as_u16_le(mem, (offset + 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 function argument
[INFO] [stderr]    --> src/opcode.rs:232:48
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:256:48
[INFO] [stderr]     |
[INFO] [stderr] 256 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:275:48
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:294:47
[INFO] [stderr]     |
[INFO] [stderr] 294 |     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:295:56
[INFO] [stderr]     |
[INFO] [stderr] 295 |     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/opcode.rs:296:57
[INFO] [stderr]     |
[INFO] [stderr] 296 |     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_invalid_number`
[INFO] [stderr]    --> src/opcode.rs:838:5
[INFO] [stderr]     |
[INFO] [stderr] 838 |     pub fn is_invalid_number(&self) -> bool
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_invalid_number`
[INFO] [stderr]    --> src/opcode.rs:838:5
[INFO] [stderr]     |
[INFO] [stderr] 838 |     pub fn is_invalid_number(&self) -> bool
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "527757e45abe1484af41bc80c194bef284be52c241261e6daa7e5728dbd13ebb"`
[INFO] running `"docker" "rm" "-f" "527757e45abe1484af41bc80c194bef284be52c241261e6daa7e5728dbd13ebb"`
[INFO] [stdout] 527757e45abe1484af41bc80c194bef284be52c241261e6daa7e5728dbd13ebb