[INFO] cloning repository https://github.com/zyxw59/rssc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zyxw59/rssc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c33c1fb64b8bb14091a5f25332496a313ab5342
[INFO] checking zyxw59/rssc against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Frssc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zyxw59/rssc on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zyxw59/rssc
[INFO] finished tweaking git repo https://github.com/zyxw59/rssc
[INFO] tweaked toml for git repo https://github.com/zyxw59/rssc written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zyxw59/rssc 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 424a3bc0ea2d77988c65c66823f6bdc4617930555764684622a245282821aae6
[INFO] running `Command { std: "docker" "start" "-a" "424a3bc0ea2d77988c65c66823f6bdc4617930555764684622a245282821aae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "424a3bc0ea2d77988c65c66823f6bdc4617930555764684622a245282821aae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424a3bc0ea2d77988c65c66823f6bdc4617930555764684622a245282821aae6", kill_on_drop: false }`
[INFO] [stdout] 424a3bc0ea2d77988c65c66823f6bdc4617930555764684622a245282821aae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cffb96bfaf95ca3c50b8faa40043684647dbd6116cc933a3314c02cb77b061ac
[INFO] running `Command { std: "docker" "start" "-a" "cffb96bfaf95ca3c50b8faa40043684647dbd6116cc933a3314c02cb77b061ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling unicode-general-category v0.5.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking hashbrown v0.12.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling utf32-lit v1.2.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking irregex v0.1.0 (https://github.com/zyxw59/irregex.git#c78fd7b8)
[INFO] [stdout] error[E0515]: cannot return reference to temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/irregex-a9d0846c19878171/c78fd7b/src/program.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |             &Instr::Match
[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 `irregex` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cffb96bfaf95ca3c50b8faa40043684647dbd6116cc933a3314c02cb77b061ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffb96bfaf95ca3c50b8faa40043684647dbd6116cc933a3314c02cb77b061ac", kill_on_drop: false }`
[INFO] [stdout] cffb96bfaf95ca3c50b8faa40043684647dbd6116cc933a3314c02cb77b061ac