[INFO] cloning repository https://github.com/sweatshirtwearingviper/dangling-ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sweatshirtwearingviper/dangling-ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweatshirtwearingviper%2Fdangling-ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweatshirtwearingviper%2Fdangling-ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3bf6f2f80d0879a6dfc73a4d4dfc93ffac08ecbe
[INFO] testing sweatshirtwearingviper/dangling-ref against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweatshirtwearingviper%2Fdangling-ref" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sweatshirtwearingviper/dangling-ref
[INFO] finished tweaking git repo https://github.com/sweatshirtwearingviper/dangling-ref
[INFO] tweaked toml for git repo https://github.com/sweatshirtwearingviper/dangling-ref written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sweatshirtwearingviper/dangling-ref on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sweatshirtwearingviper/dangling-ref 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb1c8443d93f405f892fa82cbf41586f0d8c728757b3ed60cd9bec3a119a0e6f
[INFO] running `Command { std: "docker" "start" "-a" "cb1c8443d93f405f892fa82cbf41586f0d8c728757b3ed60cd9bec3a119a0e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb1c8443d93f405f892fa82cbf41586f0d8c728757b3ed60cd9bec3a119a0e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1c8443d93f405f892fa82cbf41586f0d8c728757b3ed60cd9bec3a119a0e6f", kill_on_drop: false }`
[INFO] [stdout] cb1c8443d93f405f892fa82cbf41586f0d8c728757b3ed60cd9bec3a119a0e6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be0ca2d9ce1e2f6ccf691275a178e0d549f46471ed686c8ce4eaa044cc75be02
[INFO] running `Command { std: "docker" "start" "-a" "be0ca2d9ce1e2f6ccf691275a178e0d549f46471ed686c8ce4eaa044cc75be02", kill_on_drop: false }`
[INFO] [stderr]    Compiling dangling-ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/main.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn dangle() -> &String {
[INFO] [stdout]   |                ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
[INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn dangle() -> &'static String {
[INFO] [stdout]   |                 +++++++
[INFO] [stdout] help: instead, you are more likely to want to return an owned value
[INFO] [stdout]   |
[INFO] [stdout] 5 - fn dangle() -> &String {
[INFO] [stdout] 5 + fn dangle() -> String {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dangling-ref` (bin "dangling-ref") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "be0ca2d9ce1e2f6ccf691275a178e0d549f46471ed686c8ce4eaa044cc75be02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be0ca2d9ce1e2f6ccf691275a178e0d549f46471ed686c8ce4eaa044cc75be02", kill_on_drop: false }`
[INFO] [stdout] be0ca2d9ce1e2f6ccf691275a178e0d549f46471ed686c8ce4eaa044cc75be02