[INFO] cloning repository https://github.com/TastyWithPasta/rust_fun
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTastyWithPasta%2Frust_fun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f64af7e16a9d051192b8e5742300c000739f73f2
[INFO] checking TastyWithPasta/rust_fun against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTastyWithPasta%2Frust_fun" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TastyWithPasta/rust_fun on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-38/source/Cargo.toml
[INFO] crate git repo https://github.com/TastyWithPasta/rust_fun already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec3bf6e2fe933a241c74f0b5d2e3700ec0c84ed3447604b55b1683bc490aae32
[INFO] running `Command { std: "docker" "start" "-a" "ec3bf6e2fe933a241c74f0b5d2e3700ec0c84ed3447604b55b1683bc490aae32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec3bf6e2fe933a241c74f0b5d2e3700ec0c84ed3447604b55b1683bc490aae32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3bf6e2fe933a241c74f0b5d2e3700ec0c84ed3447604b55b1683bc490aae32", kill_on_drop: false }`
[INFO] [stdout] ec3bf6e2fe933a241c74f0b5d2e3700ec0c84ed3447604b55b1683bc490aae32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f810208539c905a951e7005b886b31b9aab88a121a2322965f1d9100426555
[INFO] running `Command { std: "docker" "start" "-a" "93f810208539c905a951e7005b886b31b9aab88a121a2322965f1d9100426555", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `pig_latin`
[INFO] [stdout]  --> src/piglatin.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn pig_latin(text: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `example`
[INFO] [stdout]   --> src/piglatin.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn example() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mean`
[INFO] [stdout]  --> src/stat.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn mean(entries : &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `median`
[INFO] [stdout]   --> src/stat.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn median(entries : &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mode`
[INFO] [stdout]   --> src/stat.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn mode (entries: &mut Vec<i32>) -> HashMap<i32, i32> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/stat.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pig_latin`
[INFO] [stdout]  --> src/piglatin.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn pig_latin(text: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `example`
[INFO] [stdout]   --> src/piglatin.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn example() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mean`
[INFO] [stdout]  --> src/stat.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn mean(entries : &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `median`
[INFO] [stdout]   --> src/stat.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn median(entries : &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mode`
[INFO] [stdout]   --> src/stat.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn mode (entries: &mut Vec<i32>) -> HashMap<i32, i32> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/stat.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stdout]   --> src/main.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |   struct Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stdout]    |                             ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stdout]   --> src/main.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 |   impl<T> Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stdout]    |                              ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stdout]   --> src/main.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |   struct Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stdout]    |                             ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Fun` in this scope
[INFO] [stdout]   --> src/main.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 |   impl<T> Cacher<T> where T: Fun(u32) -> u32 {
[INFO] [stdout]    |                              ^^^ help: a trait with a similar name exists: `Fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbook` due to 3 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "93f810208539c905a951e7005b886b31b9aab88a121a2322965f1d9100426555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f810208539c905a951e7005b886b31b9aab88a121a2322965f1d9100426555", kill_on_drop: false }`
[INFO] [stdout] 93f810208539c905a951e7005b886b31b9aab88a121a2322965f1d9100426555