[INFO] fetching crate song 0.1.3...
[INFO] testing song-0.1.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate song 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate song 0.1.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate song 0.1.3
[INFO] tweaked toml for crates.io crate song 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate song 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate song 0.1.3 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb
[INFO] running `Command { std: "docker" "start" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling safe_html v0.1.3
[INFO] [stderr]    Compiling safe_css v0.1.3
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling html_helper v0.1.3
[INFO] [stderr]    Compiling css_helper v0.1.3
[INFO] [stderr]    Compiling css_macros v0.1.3
[INFO] [stderr]    Compiling styrust v0.1.3
[INFO] [stderr]    Compiling song v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `space`
[INFO] [stdout]   --> basic/02_text_display.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let space = "            ";
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_space`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `babe1` in this scope
[INFO] [stdout]  --> rendering/01_window_display.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     babe1::create_native_window().unwrap();
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `babe1`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `babe1`, use `cargo add babe1` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `song` (example "rendering_display1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb", kill_on_drop: false }`
[INFO] [stdout] 4a2bca828da17570bc7adb3f7d8537a1d7f9537612eb8cfdaa78eb33ed7449fb
