[INFO] cloning repository https://github.com/gwo0d/rusty_rails
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gwo0d/rusty_rails" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwo0d%2Frusty_rails", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwo0d%2Frusty_rails'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 970c882c5b1a398604dc3f142748d829ddcff4ab
[INFO] checking gwo0d/rusty_rails against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgwo0d%2Frusty_rails" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gwo0d/rusty_rails on toolchain a9e7b30487235621751cc628f170c0f15fb215c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gwo0d/rusty_rails
[INFO] finished tweaking git repo https://github.com/gwo0d/rusty_rails
[INFO] tweaked toml for git repo https://github.com/gwo0d/rusty_rails written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gwo0d/rusty_rails 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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d4498fd9b9761d082835b8ac87ad92ff8ee53e63d15606d5881f5093b26a75c
[INFO] running `Command { std: "docker" "start" "-a" "1d4498fd9b9761d082835b8ac87ad92ff8ee53e63d15606d5881f5093b26a75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d4498fd9b9761d082835b8ac87ad92ff8ee53e63d15606d5881f5093b26a75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d4498fd9b9761d082835b8ac87ad92ff8ee53e63d15606d5881f5093b26a75c", kill_on_drop: false }`
[INFO] [stdout] 1d4498fd9b9761d082835b8ac87ad92ff8ee53e63d15606d5881f5093b26a75c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8721caafb2b1da79373a0d638ce1dbfe9fe120df3d2d5c460b95efa5349f6768
[INFO] running `Command { std: "docker" "start" "-a" "8721caafb2b1da79373a0d638ce1dbfe9fe120df3d2d5c460b95efa5349f6768", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking rusty_rails v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return reference to temporary value
[INFO] [stdout]   --> src/departure.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             &self.expected_time.unwrap()
[INFO] [stdout]    |             ^---------------------------
[INFO] [stdout]    |             ||
[INFO] [stdout]    |             |temporary value created here
[INFO] [stdout]    |             returns a reference to data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return reference to temporary value
[INFO] [stdout]   --> src/departure.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             &self.expected_time.unwrap()
[INFO] [stdout]    |             ^---------------------------
[INFO] [stdout]    |             ||
[INFO] [stdout]    |             |temporary value created here
[INFO] [stdout]    |             returns a reference to data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty_rails` (bin "rusty_rails" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty_rails` (bin "rusty_rails") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8721caafb2b1da79373a0d638ce1dbfe9fe120df3d2d5c460b95efa5349f6768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8721caafb2b1da79373a0d638ce1dbfe9fe120df3d2d5c460b95efa5349f6768", kill_on_drop: false }`
[INFO] [stdout] 8721caafb2b1da79373a0d638ce1dbfe9fe120df3d2d5c460b95efa5349f6768