[INFO] fetching crate hatter 0.0.1...
[INFO] checking hatter-0.0.1 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate hatter 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hatter 0.0.1 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hatter 0.0.1
[INFO] finished tweaking crates.io crate hatter 0.0.1
[INFO] tweaked toml for crates.io crate hatter 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate hatter 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] f88fd7b4b2e2e7eb5832f792578d83c7e850495fe03cea6860b5e13a74aae78c
[INFO] running `Command { std: "docker" "start" "-a" "f88fd7b4b2e2e7eb5832f792578d83c7e850495fe03cea6860b5e13a74aae78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f88fd7b4b2e2e7eb5832f792578d83c7e850495fe03cea6860b5e13a74aae78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88fd7b4b2e2e7eb5832f792578d83c7e850495fe03cea6860b5e13a74aae78c", kill_on_drop: false }`
[INFO] [stdout] f88fd7b4b2e2e7eb5832f792578d83c7e850495fe03cea6860b5e13a74aae78c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] d220e540a7b0d45cfeebc64a7b370a59fc6318351e65d366528bb097617dd4f8
[INFO] running `Command { std: "docker" "start" "-a" "d220e540a7b0d45cfeebc64a7b370a59fc6318351e65d366528bb097617dd4f8", kill_on_drop: false }`
[INFO] [stderr]     Checking hatter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> tests/hatter_test.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 | fn math(e: &Env, args: &[&Value]) -> Value {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rendering`
[INFO] [stdout]    --> tests/hatter_test.rs:286:4
[INFO] [stdout]     |
[INFO] [stdout] 286 | fn rendering() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `math`
[INFO] [stdout]    --> tests/hatter_test.rs:335:4
[INFO] [stdout]     |
[INFO] [stdout] 335 | fn math(e: &Env, args: &[&Value]) -> Value {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "d220e540a7b0d45cfeebc64a7b370a59fc6318351e65d366528bb097617dd4f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d220e540a7b0d45cfeebc64a7b370a59fc6318351e65d366528bb097617dd4f8", kill_on_drop: false }`
[INFO] [stdout] d220e540a7b0d45cfeebc64a7b370a59fc6318351e65d366528bb097617dd4f8