[INFO] cloning repository https://github.com/theor/um
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theor/um" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheor%2Fum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheor%2Fum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1d5587a187007fb947d13df3e137fb9869868ec
[INFO] testing theor/um against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheor%2Fum" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theor/um 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/theor/um
[INFO] finished tweaking git repo https://github.com/theor/um
[INFO] tweaked toml for git repo https://github.com/theor/um written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/theor/um 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82444eaca32bfd83f6d579aad4bf6f65b7e8c4a07e28f8c084862a7ef32ecc03
[INFO] running `Command { std: "docker" "start" "-a" "82444eaca32bfd83f6d579aad4bf6f65b7e8c4a07e28f8c084862a7ef32ecc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82444eaca32bfd83f6d579aad4bf6f65b7e8c4a07e28f8c084862a7ef32ecc03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82444eaca32bfd83f6d579aad4bf6f65b7e8c4a07e28f8c084862a7ef32ecc03", kill_on_drop: false }`
[INFO] [stdout] 82444eaca32bfd83f6d579aad4bf6f65b7e8c4a07e28f8c084862a7ef32ecc03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 5d4172e37f103241353527ea07f1a95082d726a69af881f8c62b1cd14df2409f
[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" "5d4172e37f103241353527ea07f1a95082d726a69af881f8c62b1cd14df2409f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs-sys v0.3.3
[INFO] [stderr]    Compiling executable_memory v0.1.2
[INFO] [stderr]    Compiling dirs v2.0.1
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling rustyline v5.0.0
[INFO] [stderr]    Compiling jit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/main.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn step(&mut self, out: &mut std::io::BufWriter<std::fs::File>, rl: &mut Editor<()>) -> bool {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `raw`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(raw)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jit` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5d4172e37f103241353527ea07f1a95082d726a69af881f8c62b1cd14df2409f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d4172e37f103241353527ea07f1a95082d726a69af881f8c62b1cd14df2409f", kill_on_drop: false }`
[INFO] [stdout] 5d4172e37f103241353527ea07f1a95082d726a69af881f8c62b1cd14df2409f