[INFO] fetching crate malloc 0.0.4...
[INFO] testing malloc-0.0.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate malloc 0.0.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate malloc 0.0.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate malloc 0.0.4
[INFO] finished tweaking crates.io crate malloc 0.0.4
[INFO] tweaked toml for crates.io crate malloc 0.0.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 261fd6ddfad4b514f2714afc2b400eb5437cabc38a3221589524ab03562c43e3
[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" "261fd6ddfad4b514f2714afc2b400eb5437cabc38a3221589524ab03562c43e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "261fd6ddfad4b514f2714afc2b400eb5437cabc38a3221589524ab03562c43e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261fd6ddfad4b514f2714afc2b400eb5437cabc38a3221589524ab03562c43e3", kill_on_drop: false }`
[INFO] [stdout] 261fd6ddfad4b514f2714afc2b400eb5437cabc38a3221589524ab03562c43e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c40d13e74aea739d488e0032a11e3414b57694450fb739aed97ce24182b5d7c1
[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" "c40d13e74aea739d488e0032a11e3414b57694450fb739aed97ce24182b5d7c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling malloc v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core::arch::wasm32`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::arch::wasm32;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ no `wasm32` in `arch`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `malloc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c40d13e74aea739d488e0032a11e3414b57694450fb739aed97ce24182b5d7c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40d13e74aea739d488e0032a11e3414b57694450fb739aed97ce24182b5d7c1", kill_on_drop: false }`
[INFO] [stdout] c40d13e74aea739d488e0032a11e3414b57694450fb739aed97ce24182b5d7c1