[INFO] cloning repository https://github.com/U-Ar/design_pattern_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/U-Ar/design_pattern_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-Ar%2Fdesign_pattern_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-Ar%2Fdesign_pattern_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ddf51d1d9bcd50490904ea8cb453d826716298e
[INFO] checking U-Ar/design_pattern_rust against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-Ar%2Fdesign_pattern_rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/U-Ar/design_pattern_rust
[INFO] finished tweaking git repo https://github.com/U-Ar/design_pattern_rust
[INFO] tweaked toml for git repo https://github.com/U-Ar/design_pattern_rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/U-Ar/design_pattern_rust on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/U-Ar/design_pattern_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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad53645a57b991eb610ca973448f85df0050593f4e157bb9c16959ce261156f4
[INFO] running `Command { std: "docker" "start" "-a" "ad53645a57b991eb610ca973448f85df0050593f4e157bb9c16959ce261156f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad53645a57b991eb610ca973448f85df0050593f4e157bb9c16959ce261156f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad53645a57b991eb610ca973448f85df0050593f4e157bb9c16959ce261156f4", kill_on_drop: false }`
[INFO] [stdout] ad53645a57b991eb610ca973448f85df0050593f4e157bb9c16959ce261156f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6ad87c0abad5023f9ac82559ae71eef9267db9b381e75962efde3a6d540e013
[INFO] running `Command { std: "docker" "start" "-a" "a6ad87c0abad5023f9ac82559ae71eef9267db9b381e75962efde3a6d540e013", kill_on_drop: false }`
[INFO] [stderr]     Checking design_pattern_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::c03_template::StringDisplay`
[INFO] [stdout]  --> src/c07_builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::c03_template::StringDisplay;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::c03_template::StringDisplay`
[INFO] [stdout]  --> src/c07_builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::c03_template::StringDisplay;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/c01_iterator.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(bookshelf: &'a BookShelf) -> BookShelfIterator {
[INFO] [stdout]    |                            ^^               ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(bookshelf: &'a BookShelf) -> BookShelfIterator<'a> {
[INFO] [stdout]    |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/c01_iterator.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(bookshelf: &'a BookShelf) -> BookShelfIterator {
[INFO] [stdout]    |                            ^^               ----------------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(bookshelf: &'a BookShelf) -> BookShelfIterator<'a> {
[INFO] [stdout]    |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `c10_strategy`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `src/bin/c10_strategy.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `design_pattern_rust` (bin "c10_strategy") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `design_pattern_rust::c08_abstfactory::*`
[INFO] [stdout]  --> src/bin/c08_abstfactory.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use design_pattern_rust::c08_abstfactory::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/bin/c08_abstfactory.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6ad87c0abad5023f9ac82559ae71eef9267db9b381e75962efde3a6d540e013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ad87c0abad5023f9ac82559ae71eef9267db9b381e75962efde3a6d540e013", kill_on_drop: false }`
[INFO] [stdout] a6ad87c0abad5023f9ac82559ae71eef9267db9b381e75962efde3a6d540e013