[INFO] fetching crate luos_memory_sandbox 0.0.1...
[INFO] testing luos_memory_sandbox-0.0.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate luos_memory_sandbox 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate luos_memory_sandbox 0.0.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luos_memory_sandbox 0.0.1
[INFO] finished tweaking crates.io crate luos_memory_sandbox 0.0.1
[INFO] tweaked toml for crates.io crate luos_memory_sandbox 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 7c19641919b7aedcf1d13ee0e88006f9aa3471cdd4fc9a991881aa84c624e667
[INFO] running `Command { std: "docker" "start" "-a" "7c19641919b7aedcf1d13ee0e88006f9aa3471cdd4fc9a991881aa84c624e667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c19641919b7aedcf1d13ee0e88006f9aa3471cdd4fc9a991881aa84c624e667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c19641919b7aedcf1d13ee0e88006f9aa3471cdd4fc9a991881aa84c624e667", kill_on_drop: false }`
[INFO] [stdout] 7c19641919b7aedcf1d13ee0e88006f9aa3471cdd4fc9a991881aa84c624e667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--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] d8daa4788fc2398d7112faba6b28a0b8cad80436d95467c6a1f67e381adca9c2
[INFO] running `Command { std: "docker" "start" "-a" "d8daa4788fc2398d7112faba6b28a0b8cad80436d95467c6a1f67e381adca9c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling luos_memory_sandbox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(const_fn, const_let)]
[INFO] [stdout]    |            ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::alloc::Alloc`, `std::alloc::AllocErr`
[INFO] [stdout]  --> src/mem_sandbox.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::{Alloc, GlobalAlloc, Layout, AllocErr};    
[INFO] [stdout]   |                  ^^^^^ no `Alloc` in `alloc` ^^^^^^^^ no `AllocErr` in `alloc`
[INFO] [stdout]   |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::{alloc, GlobalAlloc, Layout, AllocErr};    
[INFO] [stdout]   |                  ~~~~~
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::{Alloc, GlobalAlloc, Layout, AllocError};    
[INFO] [stdout]   |                                              ~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `luos_memory_sandbox` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d8daa4788fc2398d7112faba6b28a0b8cad80436d95467c6a1f67e381adca9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8daa4788fc2398d7112faba6b28a0b8cad80436d95467c6a1f67e381adca9c2", kill_on_drop: false }`
[INFO] [stdout] d8daa4788fc2398d7112faba6b28a0b8cad80436d95467c6a1f67e381adca9c2