Dec 11 19:35:25.669 INFO checking dlin94/CSAPP-Rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 19:35:25.669 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 19:35:25.831 INFO [stdout] d80c2b697d92ab0ae208c7984c43716aa81680ddabed824afeaa98b0a57b4f10
Dec 11 19:35:25.833 INFO running `"docker" "start" "-a" "d80c2b697d92ab0ae208c7984c43716aa81680ddabed824afeaa98b0a57b4f10"`
Dec 11 19:35:26.727 INFO [stderr] usermod: no changes
Dec 11 19:35:26.751 INFO [stderr]     Checking csapp v0.1.0 (/source)
Dec 11 19:35:27.228 INFO [stderr] warning: function is never used: `unsigned_decrement_infinite_loop`
Dec 11 19:35:27.228 INFO [stderr]   --> src/ch2/overflow.rs:17:1
Dec 11 19:35:27.228 INFO [stderr]    |
Dec 11 19:35:27.228 INFO [stderr] 17 | pub fn unsigned_decrement_infinite_loop() {
Dec 11 19:35:27.228 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.228 INFO [stderr]    |
Dec 11 19:35:27.228 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 19:35:27.228 INFO [stderr] 
Dec 11 19:35:27.228 INFO [stderr] warning: function is never used: `uadd_ok`
Dec 11 19:35:27.228 INFO [stderr]   --> src/ch2/overflow.rs:34:1
Dec 11 19:35:27.228 INFO [stderr]    |
Dec 11 19:35:27.228 INFO [stderr] 34 | pub fn uadd_ok(x: u32, y: u32) -> bool {
Dec 11 19:35:27.228 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.228 INFO [stderr] 
Dec 11 19:35:27.228 INFO [stderr] warning: function is never used: `tadd_ok`
Dec 11 19:35:27.228 INFO [stderr]   --> src/ch2/overflow.rs:47:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 47 | pub fn tadd_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `tsub_ok`
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/overflow.rs:66:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 66 | pub fn tsub_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `tmult_ok`
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/overflow.rs:85:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 85 | pub fn tmult_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `tmult_ok_using_64_bit`
Dec 11 19:35:27.229 INFO [stderr]    --> src/ch2/overflow.rs:102:1
Dec 11 19:35:27.229 INFO [stderr]     |
Dec 11 19:35:27.229 INFO [stderr] 102 | pub fn tmult_ok_using_64_bit(x: i32, y: i32) -> bool {
Dec 11 19:35:27.229 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `odd_ones`
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/bit_mask.rs:20:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 20 | pub fn odd_ones(x: u32) -> u32 {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `leftmost_one`
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/bit_mask.rs:55:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 55 | pub fn leftmost_one(x: u32) -> u32 {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: function is never used: `rotate_left`
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/bit_mask.rs:82:1
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 82 | pub fn rotate_left(x: u32, n: i32) -> u32 {
Dec 11 19:35:27.229 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.229 INFO [stderr] warning: comparison is useless due to type limits
Dec 11 19:35:27.229 INFO [stderr]   --> src/ch2/overflow.rs:20:11
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr] 20 |     while i >= 0 { // Infinite loop!
Dec 11 19:35:27.229 INFO [stderr]    |           ^^^^^^
Dec 11 19:35:27.229 INFO [stderr]    |
Dec 11 19:35:27.229 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 11 19:35:27.229 INFO [stderr] 
Dec 11 19:35:27.406 INFO [stderr] warning: function is never used: `unsigned_decrement_infinite_loop`
Dec 11 19:35:27.406 INFO [stderr]   --> src/ch2/overflow.rs:17:1
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr] 17 | pub fn unsigned_decrement_infinite_loop() {
Dec 11 19:35:27.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 19:35:27.406 INFO [stderr] 
Dec 11 19:35:27.406 INFO [stderr] warning: function is never used: `uadd_ok`
Dec 11 19:35:27.406 INFO [stderr]   --> src/ch2/overflow.rs:34:1
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr] 34 | pub fn uadd_ok(x: u32, y: u32) -> bool {
Dec 11 19:35:27.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.406 INFO [stderr] 
Dec 11 19:35:27.406 INFO [stderr] warning: function is never used: `tadd_ok`
Dec 11 19:35:27.406 INFO [stderr]   --> src/ch2/overflow.rs:47:1
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr] 47 | pub fn tadd_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.406 INFO [stderr] 
Dec 11 19:35:27.406 INFO [stderr] warning: function is never used: `tsub_ok`
Dec 11 19:35:27.406 INFO [stderr]   --> src/ch2/overflow.rs:66:1
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr] 66 | pub fn tsub_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.406 INFO [stderr] 
Dec 11 19:35:27.406 INFO [stderr] warning: function is never used: `tmult_ok`
Dec 11 19:35:27.406 INFO [stderr]   --> src/ch2/overflow.rs:85:1
Dec 11 19:35:27.406 INFO [stderr]    |
Dec 11 19:35:27.406 INFO [stderr] 85 | pub fn tmult_ok(x: i32, y: i32) -> bool {
Dec 11 19:35:27.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.406 INFO [stderr] 
Dec 11 19:35:27.407 INFO [stderr] warning: function is never used: `tmult_ok_using_64_bit`
Dec 11 19:35:27.407 INFO [stderr]    --> src/ch2/overflow.rs:102:1
Dec 11 19:35:27.407 INFO [stderr]     |
Dec 11 19:35:27.407 INFO [stderr] 102 | pub fn tmult_ok_using_64_bit(x: i32, y: i32) -> bool {
Dec 11 19:35:27.407 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.407 INFO [stderr] 
Dec 11 19:35:27.407 INFO [stderr] warning: function is never used: `odd_ones`
Dec 11 19:35:27.407 INFO [stderr]   --> src/ch2/bit_mask.rs:20:1
Dec 11 19:35:27.407 INFO [stderr]    |
Dec 11 19:35:27.407 INFO [stderr] 20 | pub fn odd_ones(x: u32) -> u32 {
Dec 11 19:35:27.407 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.407 INFO [stderr] 
Dec 11 19:35:27.407 INFO [stderr] warning: function is never used: `leftmost_one`
Dec 11 19:35:27.407 INFO [stderr]   --> src/ch2/bit_mask.rs:55:1
Dec 11 19:35:27.407 INFO [stderr]    |
Dec 11 19:35:27.407 INFO [stderr] 55 | pub fn leftmost_one(x: u32) -> u32 {
Dec 11 19:35:27.407 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.407 INFO [stderr] 
Dec 11 19:35:27.407 INFO [stderr] warning: function is never used: `rotate_left`
Dec 11 19:35:27.407 INFO [stderr]   --> src/ch2/bit_mask.rs:82:1
Dec 11 19:35:27.407 INFO [stderr]    |
Dec 11 19:35:27.407 INFO [stderr] 82 | pub fn rotate_left(x: u32, n: i32) -> u32 {
Dec 11 19:35:27.407 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:35:27.407 INFO [stderr] 
Dec 11 19:35:27.407 INFO [stderr] warning: comparison is useless due to type limits
Dec 11 19:35:27.407 INFO [stderr]   --> src/ch2/overflow.rs:20:11
Dec 11 19:35:27.407 INFO [stderr]    |
Dec 11 19:35:27.407 INFO [stderr] 20 |     while i >= 0 { // Infinite loop!
Dec 11 19:35:27.407 INFO [stderr]    |           ^^^^^^
Dec 11 19:35:27.407 INFO [stderr]    |
Dec 11 19:35:27.407 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 11 19:35:27.407 INFO [stderr] 
Dec 11 19:35:27.449 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 11 19:35:27.450 INFO [stderr] su: No module specific data is present
Dec 11 19:35:27.846 INFO running `"docker" "inspect" "d80c2b697d92ab0ae208c7984c43716aa81680ddabed824afeaa98b0a57b4f10"`
Dec 11 19:35:27.995 INFO running `"docker" "rm" "-f" "d80c2b697d92ab0ae208c7984c43716aa81680ddabed824afeaa98b0a57b4f10"`
Dec 11 19:35:28.137 INFO [stdout] d80c2b697d92ab0ae208c7984c43716aa81680ddabed824afeaa98b0a57b4f10