[INFO] cloning repository https://github.com/jrvidal/r5.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrvidal/r5.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae715768cf6c46ab228ede11aaddbb7f8f428260
[INFO] testing jrvidal/r5.rs against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fr5.rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrvidal/r5.rs on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jrvidal/r5.rs
[INFO] finished tweaking git repo https://github.com/jrvidal/r5.rs
[INFO] tweaked toml for git repo https://github.com/jrvidal/r5.rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jrvidal/r5.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27e31143f4715ed3953d144e2fc2b657be58e2c936b8ba955d03bb838a056609
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "27e31143f4715ed3953d144e2fc2b657be58e2c936b8ba955d03bb838a056609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27e31143f4715ed3953d144e2fc2b657be58e2c936b8ba955d03bb838a056609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e31143f4715ed3953d144e2fc2b657be58e2c936b8ba955d03bb838a056609", kill_on_drop: false }`
[INFO] [stdout] 27e31143f4715ed3953d144e2fc2b657be58e2c936b8ba955d03bb838a056609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa29b0a6dbbae688851ba44d60ddc85c3d6230d58a0c49dc8fc567f80ab829e2
[INFO] running `Command { std: "docker" "start" "-a" "aa29b0a6dbbae688851ba44d60ddc85c3d6230d58a0c49dc8fc567f80ab829e2", kill_on_drop: false }`
[INFO] [stderr] Compiling libc v0.2.36
[INFO] [stderr] Compiling void v1.0.2
[INFO] [stderr] Compiling ucd-util v0.1.1
[INFO] [stderr] Compiling regex v1.0.0
[INFO] [stderr] Compiling lazy_static v1.0.0
[INFO] [stderr] Compiling quick-error v1.2.1
[INFO] [stderr] Compiling cfg-if v0.1.2
[INFO] [stderr] Compiling utf8-ranges v1.0.0
[INFO] [stderr] Compiling unicode-width v0.1.4
[INFO] [stderr] Compiling encode_unicode v0.1.3
[INFO] [stderr] Compiling termcolor v0.3.6
[INFO] [stderr] Compiling gc v0.3.2
[INFO] [stderr] Compiling log v0.4.1
[INFO] [stderr] Compiling unreachable v1.0.0
[INFO] [stderr] Compiling humantime v1.1.1
[INFO] [stderr] Compiling regex-syntax v0.6.0
[INFO] [stderr] Compiling thread_local v0.3.5
[INFO] [stderr] Compiling memchr v2.0.1
[INFO] [stderr] Compiling atty v0.2.10
[INFO] [stderr] Compiling nix v0.5.1
[INFO] [stderr] Compiling aho-corasick v0.6.4
[INFO] [stderr] Compiling rustyline v1.0.0
[INFO] [stderr] Compiling env_logger v0.5.10
[INFO] [stderr] Compiling r5rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout] --> src/compiler/mod.rs:771:20
[INFO] [stdout] |
[INFO] [stdout] 771 | ) -> Result