[INFO] fetching crate elicit 0.7.8...
[INFO] checking elicit-0.7.8 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate elicit 0.7.8 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate elicit 0.7.8 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elicit 0.7.8
[INFO] finished tweaking crates.io crate elicit 0.7.8
[INFO] tweaked toml for crates.io crate elicit 0.7.8 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] 38765563c8d67a20335baa9ce1b84246b97eaf0107a8d14933a2b0d45eba55ad
[INFO] running `Command { std: "docker" "start" "-a" "38765563c8d67a20335baa9ce1b84246b97eaf0107a8d14933a2b0d45eba55ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38765563c8d67a20335baa9ce1b84246b97eaf0107a8d14933a2b0d45eba55ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38765563c8d67a20335baa9ce1b84246b97eaf0107a8d14933a2b0d45eba55ad", kill_on_drop: false }`
[INFO] [stdout] 38765563c8d67a20335baa9ce1b84246b97eaf0107a8d14933a2b0d45eba55ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--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] ef1239fc99567e2c9573bf7261a7f874ca28e1b9533227e44c22fa9b769e7fba
[INFO] running `Command { std: "docker" "start" "-a" "ef1239fc99567e2c9573bf7261a7f874ca28e1b9533227e44c22fa9b769e7fba", kill_on_drop: false }`
[INFO] [stderr]     Checking elicit v0.7.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `upgrade`
[INFO] [stdout]    --> src/aelicit.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 pub fn upgrade(&self) -> Option<Aelicit> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     aelicit_define!(aelicit_t0, T0);
[INFO] [stdout]     |     -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `upgrade`
[INFO] [stdout]    --> src/elicit.rs:99:17
[INFO] [stdout]     |
[INFO] [stdout] 99  |                 pub fn upgrade(&self) -> Option<Elicit> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |     elicit_define!(elicit_t0, T0);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "ef1239fc99567e2c9573bf7261a7f874ca28e1b9533227e44c22fa9b769e7fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef1239fc99567e2c9573bf7261a7f874ca28e1b9533227e44c22fa9b769e7fba", kill_on_drop: false }`
[INFO] [stdout] ef1239fc99567e2c9573bf7261a7f874ca28e1b9533227e44c22fa9b769e7fba