Dec 18 08:11:17.762 INFO checking CharlieChai/baby_code_rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:11:17.762 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/CharlieChai/baby_code_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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:11:18.308 INFO [stdout] 55a760c7cd73792028867a2b81347e8b21a73ba5ea40b2e9902aa0990b6fe698
Dec 18 08:11:18.311 INFO running `"docker" "start" "-a" "55a760c7cd73792028867a2b81347e8b21a73ba5ea40b2e9902aa0990b6fe698"`
Dec 18 08:11:20.216 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 18 08:11:20.572 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 18 08:11:20.572 INFO [stderr]  --> src/demo.rs:2:9
Dec 18 08:11:20.572 INFO [stderr]   |
Dec 18 08:11:20.572 INFO [stderr] 2 |     use std::net::IpAddr;
Dec 18 08:11:20.572 INFO [stderr]   |         ^^^^^^^^^^^^^^^^
Dec 18 08:11:20.572 INFO [stderr]   |
Dec 18 08:11:20.572 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:11:20.572 INFO [stderr] 
Dec 18 08:11:20.572 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`, `SocketAddrV4`, `SocketAddrV6`
Dec 18 08:11:20.572 INFO [stderr]  --> src/demo.rs:3:20
Dec 18 08:11:20.572 INFO [stderr]   |
Dec 18 08:11:20.572 INFO [stderr] 3 |     use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6};
Dec 18 08:11:20.572 INFO [stderr]   |                    ^^^^^^^^  ^^^^^^^^              ^^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 18 08:11:20.572 INFO [stderr] 
Dec 18 08:11:20.628 INFO [stderr] warning: unused import: `std::net::IpAddr`
Dec 18 08:11:20.628 INFO [stderr]  --> src/demo.rs:2:9
Dec 18 08:11:20.628 INFO [stderr]   |
Dec 18 08:11:20.628 INFO [stderr] 2 |     use std::net::IpAddr;
Dec 18 08:11:20.628 INFO [stderr]   |         ^^^^^^^^^^^^^^^^
Dec 18 08:11:20.628 INFO [stderr]   |
Dec 18 08:11:20.628 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:11:20.628 INFO [stderr] 
Dec 18 08:11:20.628 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`, `SocketAddrV4`, `SocketAddrV6`
Dec 18 08:11:20.628 INFO [stderr]  --> src/demo.rs:3:20
Dec 18 08:11:20.628 INFO [stderr]   |
Dec 18 08:11:20.628 INFO [stderr] 3 |     use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6};
Dec 18 08:11:20.628 INFO [stderr]   |                    ^^^^^^^^  ^^^^^^^^              ^^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 18 08:11:20.628 INFO [stderr] 
Dec 18 08:11:20.804 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:20.804 INFO [stderr]   --> src/demo.rs:23:13
Dec 18 08:11:20.804 INFO [stderr]    |
Dec 18 08:11:20.804 INFO [stderr] 23 |         let mut counter = Arc::new(Mutex::new(a));
Dec 18 08:11:20.804 INFO [stderr]    |             ----^^^^^^^
Dec 18 08:11:20.804 INFO [stderr]    |             |
Dec 18 08:11:20.804 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:11:20.804 INFO [stderr]    |
Dec 18 08:11:20.804 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:11:20.804 INFO [stderr] 
Dec 18 08:11:20.868 INFO [stderr] warning: enum is never used: `ServerAddr`
Dec 18 08:11:20.868 INFO [stderr]  --> src/demo.rs:8:5
Dec 18 08:11:20.868 INFO [stderr]   |
Dec 18 08:11:20.868 INFO [stderr] 8 |     enum ServerAddr {
Dec 18 08:11:20.868 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 08:11:20.868 INFO [stderr]   |
Dec 18 08:11:20.869 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `listen_addr`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:14:9
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 14 |         fn listen_addr(self) -> SocketAddr {
Dec 18 08:11:20.869 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: struct is never constructed: `Context`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:45:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 45 |     struct Context<'s>(&'s str);
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:47:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 47 |     struct Parser<'c, 's: 'c> {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `parse`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:52:9
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 52 |         fn parse(&self) -> Result<(), &'s str> {
Dec 18 08:11:20.869 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: function is never used: `parse_content`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:57:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 57 |     fn parse_content(context: Context) -> Result<(), &str> {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: function is never used: `fa`
Dec 18 08:11:20.869 INFO [stderr]   --> src/demo.rs:65:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 65 |     fn fa(s: &mut String) -> &str {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: field is never used: `case_sensitive`
Dec 18 08:11:20.869 INFO [stderr]  --> src/grep.rs:9:5
Dec 18 08:11:20.869 INFO [stderr]   |
Dec 18 08:11:20.869 INFO [stderr] 9 |     case_sensitive: bool,
Dec 18 08:11:20.869 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `new`
Dec 18 08:11:20.869 INFO [stderr]   --> src/stack.rs:14:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 14 |     fn new() -> Stack<T> {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `pop`
Dec 18 08:11:20.869 INFO [stderr]   --> src/stack.rs:18:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 18 |     fn pop(&mut self) -> Option<T> {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `push`
Dec 18 08:11:20.869 INFO [stderr]   --> src/stack.rs:30:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 30 |     fn push(&mut self, val: T) {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `is_empty`
Dec 18 08:11:20.869 INFO [stderr]   --> src/stack.rs:37:5
Dec 18 08:11:20.869 INFO [stderr]    |
Dec 18 08:11:20.869 INFO [stderr] 37 |     fn is_empty(&self) -> bool {
Dec 18 08:11:20.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.869 INFO [stderr] 
Dec 18 08:11:20.869 INFO [stderr] warning: method is never used: `new`
Dec 18 08:11:20.869 INFO [stderr]   --> src/stack.rs:43:5
Dec 18 08:11:20.870 INFO [stderr]    |
Dec 18 08:11:20.870 INFO [stderr] 43 |     fn new(v: T) -> StackNode<T> {
Dec 18 08:11:20.870 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.870 INFO [stderr] 
Dec 18 08:11:20.870 INFO [stderr] warning: type alias is never used: `BST`
Dec 18 08:11:20.870 INFO [stderr]   --> src/tree.rs:83:1
Dec 18 08:11:20.870 INFO [stderr]    |
Dec 18 08:11:20.870 INFO [stderr] 83 | type BST<K, V> = Node<K, V>;
Dec 18 08:11:20.870 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:20.870 INFO [stderr] 
Dec 18 08:11:20.885 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:20.885 INFO [stderr]   --> src/demo.rs:23:13
Dec 18 08:11:20.885 INFO [stderr]    |
Dec 18 08:11:20.885 INFO [stderr] 23 |         let mut counter = Arc::new(Mutex::new(a));
Dec 18 08:11:20.885 INFO [stderr]    |             ----^^^^^^^
Dec 18 08:11:20.885 INFO [stderr]    |             |
Dec 18 08:11:20.885 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:11:20.885 INFO [stderr]    |
Dec 18 08:11:20.885 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:11:20.885 INFO [stderr] 
Dec 18 08:11:21.020 INFO [stderr] warning: enum is never used: `ServerAddr`
Dec 18 08:11:21.020 INFO [stderr]  --> src/demo.rs:8:5
Dec 18 08:11:21.020 INFO [stderr]   |
Dec 18 08:11:21.020 INFO [stderr] 8 |     enum ServerAddr {
Dec 18 08:11:21.020 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 08:11:21.020 INFO [stderr]   |
Dec 18 08:11:21.020 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 08:11:21.020 INFO [stderr] 
Dec 18 08:11:21.028 INFO [stderr] warning: method is never used: `listen_addr`
Dec 18 08:11:21.028 INFO [stderr]   --> src/demo.rs:14:9
Dec 18 08:11:21.028 INFO [stderr]    |
Dec 18 08:11:21.028 INFO [stderr] 14 |         fn listen_addr(self) -> SocketAddr {
Dec 18 08:11:21.028 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.028 INFO [stderr] 
Dec 18 08:11:21.028 INFO [stderr] warning: struct is never constructed: `Context`
Dec 18 08:11:21.028 INFO [stderr]   --> src/demo.rs:45:5
Dec 18 08:11:21.028 INFO [stderr]    |
Dec 18 08:11:21.028 INFO [stderr] 45 |     struct Context<'s>(&'s str);
Dec 18 08:11:21.028 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.028 INFO [stderr] 
Dec 18 08:11:21.028 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 18 08:11:21.028 INFO [stderr]   --> src/demo.rs:47:5
Dec 18 08:11:21.028 INFO [stderr]    |
Dec 18 08:11:21.028 INFO [stderr] 47 |     struct Parser<'c, 's: 'c> {
Dec 18 08:11:21.028 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.028 INFO [stderr] 
Dec 18 08:11:21.028 INFO [stderr] warning: method is never used: `parse`
Dec 18 08:11:21.028 INFO [stderr]   --> src/demo.rs:52:9
Dec 18 08:11:21.028 INFO [stderr]    |
Dec 18 08:11:21.028 INFO [stderr] 52 |         fn parse(&self) -> Result<(), &'s str> {
Dec 18 08:11:21.029 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.029 INFO [stderr] 
Dec 18 08:11:21.029 INFO [stderr] warning: function is never used: `parse_content`
Dec 18 08:11:21.029 INFO [stderr]   --> src/demo.rs:57:5
Dec 18 08:11:21.029 INFO [stderr]    |
Dec 18 08:11:21.029 INFO [stderr] 57 |     fn parse_content(context: Context) -> Result<(), &str> {
Dec 18 08:11:21.029 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.029 INFO [stderr] 
Dec 18 08:11:21.029 INFO [stderr] warning: function is never used: `fa`
Dec 18 08:11:21.029 INFO [stderr]   --> src/demo.rs:65:5
Dec 18 08:11:21.029 INFO [stderr]    |
Dec 18 08:11:21.029 INFO [stderr] 65 |     fn fa(s: &mut String) -> &str {
Dec 18 08:11:21.029 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.029 INFO [stderr] 
Dec 18 08:11:21.029 INFO [stderr] warning: field is never used: `case_sensitive`
Dec 18 08:11:21.029 INFO [stderr]  --> src/grep.rs:9:5
Dec 18 08:11:21.029 INFO [stderr]   |
Dec 18 08:11:21.029 INFO [stderr] 9 |     case_sensitive: bool,
Dec 18 08:11:21.029 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:21.029 INFO [stderr] 
Dec 18 08:11:21.248 INFO [stderr] error[E0597]: `a` does not live long enough
Dec 18 08:11:21.248 INFO [stderr]   --> src/bin/server.rs:38:27
Dec 18 08:11:21.248 INFO [stderr]    |
Dec 18 08:11:21.248 INFO [stderr] 38 |     let r1 = Demo { name:&a };
Dec 18 08:11:21.248 INFO [stderr]    |                           ^ borrowed value does not live long enough
Dec 18 08:11:21.248 INFO [stderr] ...
Dec 18 08:11:21.248 INFO [stderr] 42 | }
Dec 18 08:11:21.248 INFO [stderr]    | - borrowed value only lives until here
Dec 18 08:11:21.248 INFO [stderr]    |
Dec 18 08:11:21.248 INFO [stderr]    = note: borrowed value must be valid for the static lifetime...
Dec 18 08:11:21.248 INFO [stderr] 
Dec 18 08:11:21.248 INFO [stderr] error[E0597]: `a` does not live long enough
Dec 18 08:11:21.248 INFO [stderr]   --> src/bin/server.rs:39:27
Dec 18 08:11:21.248 INFO [stderr]    |
Dec 18 08:11:21.248 INFO [stderr] 39 |     let r2 = Demo { name:&a };
Dec 18 08:11:21.248 INFO [stderr]    |                           ^ borrowed value does not live long enough
Dec 18 08:11:21.248 INFO [stderr] ...
Dec 18 08:11:21.248 INFO [stderr] 42 | }
Dec 18 08:11:21.249 INFO [stderr]    | - borrowed value only lives until here
Dec 18 08:11:21.249 INFO [stderr]    |
Dec 18 08:11:21.249 INFO [stderr]    = note: borrowed value must be valid for the static lifetime...
Dec 18 08:11:21.249 INFO [stderr] 
Dec 18 08:11:21.249 INFO [stderr] error: aborting due to 2 previous errors
Dec 18 08:11:21.249 INFO [stderr] 
Dec 18 08:11:21.249 INFO [stderr] For more information about this error, try `rustc --explain E0597`.
Dec 18 08:11:21.260 INFO [stderr] error: Could not compile `minigrep`.
Dec 18 08:11:21.260 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 08:11:21.388 INFO [stderr] error[E0597]: `a` does not live long enough
Dec 18 08:11:21.388 INFO [stderr]   --> src/bin/server.rs:38:27
Dec 18 08:11:21.388 INFO [stderr]    |
Dec 18 08:11:21.388 INFO [stderr] 38 |     let r1 = Demo { name:&a };
Dec 18 08:11:21.388 INFO [stderr]    |                           ^ borrowed value does not live long enough
Dec 18 08:11:21.388 INFO [stderr] ...
Dec 18 08:11:21.389 INFO [stderr] 42 | }
Dec 18 08:11:21.389 INFO [stderr]    | - borrowed value only lives until here
Dec 18 08:11:21.389 INFO [stderr]    |
Dec 18 08:11:21.389 INFO [stderr]    = note: borrowed value must be valid for the static lifetime...
Dec 18 08:11:21.389 INFO [stderr] 
Dec 18 08:11:21.389 INFO [stderr] error[E0597]: `a` does not live long enough
Dec 18 08:11:21.389 INFO [stderr]   --> src/bin/server.rs:39:27
Dec 18 08:11:21.389 INFO [stderr]    |
Dec 18 08:11:21.389 INFO [stderr] 39 |     let r2 = Demo { name:&a };
Dec 18 08:11:21.389 INFO [stderr]    |                           ^ borrowed value does not live long enough
Dec 18 08:11:21.389 INFO [stderr] ...
Dec 18 08:11:21.389 INFO [stderr] 42 | }
Dec 18 08:11:21.389 INFO [stderr]    | - borrowed value only lives until here
Dec 18 08:11:21.389 INFO [stderr]    |
Dec 18 08:11:21.389 INFO [stderr]    = note: borrowed value must be valid for the static lifetime...
Dec 18 08:11:21.389 INFO [stderr] 
Dec 18 08:11:21.389 INFO [stderr] error: aborting due to 2 previous errors
Dec 18 08:11:21.389 INFO [stderr] 
Dec 18 08:11:21.389 INFO [stderr] For more information about this error, try `rustc --explain E0597`.
Dec 18 08:11:21.389 INFO [stderr] error: Could not compile `minigrep`.
Dec 18 08:11:21.389 INFO [stderr] 
Dec 18 08:11:21.389 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 08:11:22.060 INFO running `"docker" "inspect" "55a760c7cd73792028867a2b81347e8b21a73ba5ea40b2e9902aa0990b6fe698"`
Dec 18 08:11:22.388 INFO running `"docker" "rm" "-f" "55a760c7cd73792028867a2b81347e8b21a73ba5ea40b2e9902aa0990b6fe698"`
Dec 18 08:11:22.757 INFO [stdout] 55a760c7cd73792028867a2b81347e8b21a73ba5ea40b2e9902aa0990b6fe698