[INFO] cloning repository https://github.com/isikkema/nth_function
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/isikkema/nth_function" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisikkema%2Fnth_function", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisikkema%2Fnth_function'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07daacb283b2d5ffb4af4e77d93225005dd25dcc
[INFO] checking isikkema/nth_function against try#0ec6e73c26e84416f7a6c0dacee999279e12896e for pr-84385
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisikkema%2Fnth_function" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/isikkema/nth_function on toolchain 0ec6e73c26e84416f7a6c0dacee999279e12896e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ec6e73c26e84416f7a6c0dacee999279e12896e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/isikkema/nth_function
[INFO] finished tweaking git repo https://github.com/isikkema/nth_function
[INFO] tweaked toml for git repo https://github.com/isikkema/nth_function written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/isikkema/nth_function already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ec6e73c26e84416f7a6c0dacee999279e12896e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+0ec6e73c26e84416f7a6c0dacee999279e12896e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 564318e52dcf504f4e541c339d8343fc3d598863fb282130b6d19bc051f488aa
[INFO] running `Command { std: "docker" "start" "-a" "564318e52dcf504f4e541c339d8343fc3d598863fb282130b6d19bc051f488aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "564318e52dcf504f4e541c339d8343fc3d598863fb282130b6d19bc051f488aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564318e52dcf504f4e541c339d8343fc3d598863fb282130b6d19bc051f488aa", kill_on_drop: false }`
[INFO] [stdout] 564318e52dcf504f4e541c339d8343fc3d598863fb282130b6d19bc051f488aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+0ec6e73c26e84416f7a6c0dacee999279e12896e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2281cb142ae2dd3edad8a00881580cb3c5e9a0bb302bb3db42681f4a403a1735
[INFO] running `Command { std: "docker" "start" "-a" "2281cb142ae2dd3edad8a00881580cb3c5e9a0bb302bb3db42681f4a403a1735", kill_on_drop: false }`
[INFO] [stderr]     Checking nth_function v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0309]: the parameter type `U` may not live long enough
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     Rc::new(move |n: U, m: U| -> U {
[INFO] [stdout] 13 | |         let mut acc: U = n;
[INFO] [stdout] 14 | |
[INFO] [stdout] 15 | |         for _ in <U as Step>::forward(m - m, 1)..m {
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |         acc
[INFO] [stdout] 20 | |     })
[INFO] [stdout]    | |______^ ...so that the type `U` will meet its required lifetime bounds
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding an explicit lifetime bound...
[INFO] [stdout]    |
[INFO] [stdout] 10 |     U: Sub<Output = U> + Step + Copy + 'a,
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0309]: the parameter type `U` may not live long enough
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     Rc::new(move |n: U, m: U| -> U {
[INFO] [stdout] 13 | |         let mut acc: U = n;
[INFO] [stdout] 14 | |
[INFO] [stdout] 15 | |         for _ in <U as Step>::forward(m - m, 1)..m {
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |         acc
[INFO] [stdout] 20 | |     })
[INFO] [stdout]    | |______^ ...so that the type `U` will meet its required lifetime bounds
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding an explicit lifetime bound...
[INFO] [stdout]    |
[INFO] [stdout] 10 |     U: Sub<Output = U> + Step + Copy + 'a,
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0309`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0309`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nth_function` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `nth_function` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2281cb142ae2dd3edad8a00881580cb3c5e9a0bb302bb3db42681f4a403a1735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2281cb142ae2dd3edad8a00881580cb3c5e9a0bb302bb3db42681f4a403a1735", kill_on_drop: false }`
[INFO] [stdout] 2281cb142ae2dd3edad8a00881580cb3c5e9a0bb302bb3db42681f4a403a1735