[INFO] cloning repository https://github.com/DevYoma/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DevYoma/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevYoma%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevYoma%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80eb17c94fbfa1b7645f00636c23a3a81099680f
[INFO] checking DevYoma/rust against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDevYoma%2Frust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DevYoma/rust
[INFO] finished tweaking git repo https://github.com/DevYoma/rust
[INFO] tweaked toml for git repo https://github.com/DevYoma/rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DevYoma/rust on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DevYoma/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eeb508c20dd7dc4bc695329778b37a01e94477880c823ad95ddc3c87bece53e3
[INFO] running `Command { std: "docker" "start" "-a" "eeb508c20dd7dc4bc695329778b37a01e94477880c823ad95ddc3c87bece53e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eeb508c20dd7dc4bc695329778b37a01e94477880c823ad95ddc3c87bece53e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeb508c20dd7dc4bc695329778b37a01e94477880c823ad95ddc3c87bece53e3", kill_on_drop: false }`
[INFO] [stdout] eeb508c20dd7dc4bc695329778b37a01e94477880c823ad95ddc3c87bece53e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bef483a5e5eb266d50cbc3b83b971f961bf3319ab33fa8ee5b8933faa185bed
[INFO] running `Command { std: "docker" "start" "-a" "8bef483a5e5eb266d50cbc3b83b971f961bf3319ab33fa8ee5b8933faa185bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.92
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/mutableref.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/lifetimes.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn longest(a: &str, b: &str) -> &str {
[INFO] [stdout]   |               ----     ----     ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `a` or `b`
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn longest<'a>(a: &'a str, b: &'a str) -> &'a str {
[INFO] [stdout]   |           ++++     ++          ++          ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/lifetimes.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn longest(a: &str, b: &str) -> &str {
[INFO] [stdout]   |               ----     ----     ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `a` or `b`
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn longest<'a>(a: &'a str, b: &'a str) -> &'a str {
[INFO] [stdout]   |           ++++     ++          ++          ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]  --> src/mutable.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut x = 1;
[INFO] [stdout]   |                 ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Result` is never used
[INFO] [stdout]   --> src/resultenum.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Result<A, B> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust` (bin "lifetimes") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust` (bin "lifetimes" test) due to 1 previous error
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/mutableref.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]  --> src/struct.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User{
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |     active: bool
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]  --> src/optionenum.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     greet(Some((String::from("Yoma")))); // Hello, Yoma
[INFO] [stdout]   |                ^                    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -     greet(Some((String::from("Yoma")))); // Hello, Yoma
[INFO] [stdout] 5 +     greet(Some(String::from("Yoma") )); // Hello, Yoma
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/optionenum.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     match(name){
[INFO] [stdout]    |          ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     match(name){
[INFO] [stdout] 10 +     match name {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> src/optionenum.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let name: Option<String> = Some(String::from("Alice")); // There's a value
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_name`
[INFO] [stdout]  --> src/optionenum.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let no_name: Option<String> = None; // No value
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]  --> src/struct.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User{
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |     active: bool
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8bef483a5e5eb266d50cbc3b83b971f961bf3319ab33fa8ee5b8933faa185bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bef483a5e5eb266d50cbc3b83b971f961bf3319ab33fa8ee5b8933faa185bed", kill_on_drop: false }`
[INFO] [stdout] 8bef483a5e5eb266d50cbc3b83b971f961bf3319ab33fa8ee5b8933faa185bed
