[INFO] cloning repository https://github.com/TastyWithPasta/rust_fun
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TastyWithPasta/rust_fun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTastyWithPasta%2Frust_fun"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTastyWithPasta%2Frust_fun'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f64af7e16a9d051192b8e5742300c000739f73f2
[INFO] checking TastyWithPasta/rust_fun against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTastyWithPasta%2Frust_fun" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TastyWithPasta/rust_fun on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/TastyWithPasta/rust_fun
[INFO] finished tweaking git repo https://github.com/TastyWithPasta/rust_fun
[INFO] tweaked toml for git repo https://github.com/TastyWithPasta/rust_fun written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/TastyWithPasta/rust_fun already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6663d8379597bbf52782167d6fe0c686609c800c2a86b11426b412018374eb25
[INFO] running `"docker" "start" "-a" "6663d8379597bbf52782167d6fe0c686609c800c2a86b11426b412018374eb25"`
[INFO] [stderr]     Checking rustbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `pig_latin`
[INFO] [stderr]  --> src/piglatin.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn pig_latin(text: &str) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `example`
[INFO] [stderr]   --> src/piglatin.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn example() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mean`
[INFO] [stderr]  --> src/stat.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn mean(entries : &mut Vec<i32>) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `median`
[INFO] [stderr]   --> src/stat.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn median(entries : &mut Vec<i32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mode`
[INFO] [stderr]   --> src/stat.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mode (entries: &mut Vec<i32>) -> HashMap<i32, i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/stat.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn main() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pig_latin`
[INFO] [stderr]  --> src/piglatin.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn pig_latin(text: &str) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `example`
[INFO] [stderr]   --> src/piglatin.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn example() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mean`
[INFO] [stderr]  --> src/stat.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn mean(entries : &mut Vec<i32>) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `median`
[INFO] [stderr]   --> src/stat.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn median(entries : &mut Vec<i32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mode`
[INFO] [stderr]   --> src/stat.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mode (entries: &mut Vec<i32>) -> HashMap<i32, i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/stat.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn main() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stderr]   --> src/main.rs:42:27
[INFO] [stderr]    |
[INFO] [stderr] 42 | struct Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stderr]    |                           ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stderr]   --> src/main.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 | impl<T> Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stderr]    |                            ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `rustbook`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stderr]   --> src/main.rs:42:27
[INFO] [stderr]    |
[INFO] [stderr] 42 | struct Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stderr]    |                           ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stderr]   --> src/main.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 | impl<T> Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stderr]    |                            ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `rustbook`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6663d8379597bbf52782167d6fe0c686609c800c2a86b11426b412018374eb25"`
[INFO] running `"docker" "rm" "-f" "6663d8379597bbf52782167d6fe0c686609c800c2a86b11426b412018374eb25"`
[INFO] [stdout] 6663d8379597bbf52782167d6fe0c686609c800c2a86b11426b412018374eb25