Dec 19 17:54:42.509 INFO checking dlin94/CSAPP-Rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:54:42.509 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/dlin94/CSAPP-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=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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:54:42.865 INFO [stdout] d2c9fbca4e71dd453e108415146d82c4d74a714c240e93ab86a687b9d86e249f
Dec 19 17:54:42.870 INFO running `"docker" "start" "-a" "d2c9fbca4e71dd453e108415146d82c4d74a714c240e93ab86a687b9d86e249f"`
Dec 19 17:54:44.057 INFO [stderr]     Checking csapp v0.1.0 (/opt/crater/workdir)
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `unsigned_decrement_infinite_loop`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/overflow.rs:17:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 17 | pub fn unsigned_decrement_infinite_loop() {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `uadd_ok`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/overflow.rs:34:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 34 | pub fn uadd_ok(x: u32, y: u32) -> bool {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `tadd_ok`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/overflow.rs:47:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 47 | pub fn tadd_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `tsub_ok`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/overflow.rs:66:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 66 | pub fn tsub_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `tmult_ok`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/overflow.rs:85:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 85 | pub fn tmult_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `tmult_ok_using_64_bit`
Dec 19 17:54:44.288 INFO [stderr]    --> src/ch2/overflow.rs:102:1
Dec 19 17:54:44.288 INFO [stderr]     |
Dec 19 17:54:44.288 INFO [stderr] 102 | pub fn tmult_ok_using_64_bit(x: i32, y: i32) -> bool {
Dec 19 17:54:44.288 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `odd_ones`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/bit_mask.rs:20:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.288 INFO [stderr] 20 | pub fn odd_ones(x: u32) -> u32 {
Dec 19 17:54:44.288 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.288 INFO [stderr] 
Dec 19 17:54:44.288 INFO [stderr] warning: function is never used: `leftmost_one`
Dec 19 17:54:44.288 INFO [stderr]   --> src/ch2/bit_mask.rs:55:1
Dec 19 17:54:44.288 INFO [stderr]    |
Dec 19 17:54:44.289 INFO [stderr] 55 | pub fn leftmost_one(x: u32) -> u32 {
Dec 19 17:54:44.289 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.289 INFO [stderr] 
Dec 19 17:54:44.289 INFO [stderr] warning: function is never used: `rotate_left`
Dec 19 17:54:44.289 INFO [stderr]   --> src/ch2/bit_mask.rs:82:1
Dec 19 17:54:44.289 INFO [stderr]    |
Dec 19 17:54:44.289 INFO [stderr] 82 | pub fn rotate_left(x: u32, n: i32) -> u32 {
Dec 19 17:54:44.289 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.289 INFO [stderr] 
Dec 19 17:54:44.289 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 17:54:44.289 INFO [stderr]   --> src/ch2/overflow.rs:20:11
Dec 19 17:54:44.289 INFO [stderr]    |
Dec 19 17:54:44.289 INFO [stderr] 20 |     while i >= 0 { // Infinite loop!
Dec 19 17:54:44.289 INFO [stderr]    |           ^^^^^^
Dec 19 17:54:44.289 INFO [stderr]    |
Dec 19 17:54:44.289 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 17:54:44.289 INFO [stderr] 
Dec 19 17:54:44.293 INFO [stderr] warning: function is never used: `unsigned_decrement_infinite_loop`
Dec 19 17:54:44.293 INFO [stderr]   --> src/ch2/overflow.rs:17:1
Dec 19 17:54:44.293 INFO [stderr]    |
Dec 19 17:54:44.293 INFO [stderr] 17 | pub fn unsigned_decrement_infinite_loop() {
Dec 19 17:54:44.293 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.293 INFO [stderr]    |
Dec 19 17:54:44.293 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 17:54:44.294 INFO [stderr] 
Dec 19 17:54:44.294 INFO [stderr] warning: function is never used: `uadd_ok`
Dec 19 17:54:44.294 INFO [stderr]   --> src/ch2/overflow.rs:34:1
Dec 19 17:54:44.294 INFO [stderr]    |
Dec 19 17:54:44.294 INFO [stderr] 34 | pub fn uadd_ok(x: u32, y: u32) -> bool {
Dec 19 17:54:44.294 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.294 INFO [stderr] 
Dec 19 17:54:44.294 INFO [stderr] warning: function is never used: `tadd_ok`
Dec 19 17:54:44.295 INFO [stderr]   --> src/ch2/overflow.rs:47:1
Dec 19 17:54:44.296 INFO [stderr]    |
Dec 19 17:54:44.296 INFO [stderr] 47 | pub fn tadd_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.296 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.296 INFO [stderr] 
Dec 19 17:54:44.296 INFO [stderr] warning: function is never used: `tsub_ok`
Dec 19 17:54:44.296 INFO [stderr]   --> src/ch2/overflow.rs:66:1
Dec 19 17:54:44.296 INFO [stderr]    |
Dec 19 17:54:44.296 INFO [stderr] 66 | pub fn tsub_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.296 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.296 INFO [stderr] 
Dec 19 17:54:44.296 INFO [stderr] warning: function is never used: `tmult_ok`
Dec 19 17:54:44.300 INFO [stderr]   --> src/ch2/overflow.rs:85:1
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr] 85 | pub fn tmult_ok(x: i32, y: i32) -> bool {
Dec 19 17:54:44.300 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.300 INFO [stderr] warning: function is never used: `tmult_ok_using_64_bit`
Dec 19 17:54:44.300 INFO [stderr]    --> src/ch2/overflow.rs:102:1
Dec 19 17:54:44.300 INFO [stderr]     |
Dec 19 17:54:44.300 INFO [stderr] 102 | pub fn tmult_ok_using_64_bit(x: i32, y: i32) -> bool {
Dec 19 17:54:44.300 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.300 INFO [stderr] warning: function is never used: `odd_ones`
Dec 19 17:54:44.300 INFO [stderr]   --> src/ch2/bit_mask.rs:20:1
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr] 20 | pub fn odd_ones(x: u32) -> u32 {
Dec 19 17:54:44.300 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.300 INFO [stderr] warning: function is never used: `leftmost_one`
Dec 19 17:54:44.300 INFO [stderr]   --> src/ch2/bit_mask.rs:55:1
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr] 55 | pub fn leftmost_one(x: u32) -> u32 {
Dec 19 17:54:44.300 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.300 INFO [stderr] warning: function is never used: `rotate_left`
Dec 19 17:54:44.300 INFO [stderr]   --> src/ch2/bit_mask.rs:82:1
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr] 82 | pub fn rotate_left(x: u32, n: i32) -> u32 {
Dec 19 17:54:44.300 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.300 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 17:54:44.300 INFO [stderr]   --> src/ch2/overflow.rs:20:11
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr] 20 |     while i >= 0 { // Infinite loop!
Dec 19 17:54:44.300 INFO [stderr]    |           ^^^^^^
Dec 19 17:54:44.300 INFO [stderr]    |
Dec 19 17:54:44.300 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 17:54:44.300 INFO [stderr] 
Dec 19 17:54:44.330 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 19 17:54:44.870 INFO running `"docker" "inspect" "d2c9fbca4e71dd453e108415146d82c4d74a714c240e93ab86a687b9d86e249f"`
Dec 19 17:54:45.030 INFO running `"docker" "rm" "-f" "d2c9fbca4e71dd453e108415146d82c4d74a714c240e93ab86a687b9d86e249f"`
Dec 19 17:54:45.328 INFO [stdout] d2c9fbca4e71dd453e108415146d82c4d74a714c240e93ab86a687b9d86e249f