[INFO] fetching crate mc-oblivious-ram 2.0.0...
[INFO] checking mc-oblivious-ram-2.0.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate mc-oblivious-ram 2.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mc-oblivious-ram 2.0.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mc-oblivious-ram 2.0.0
[INFO] finished tweaking crates.io crate mc-oblivious-ram 2.0.0
[INFO] tweaked toml for crates.io crate mc-oblivious-ram 2.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mc-oblivious-traits v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] af2ac1fc1fa9ad360da48eb4df7f229097248181b9990bb711ea8095c5ad3e7b
[INFO] running `Command { std: "docker" "start" "-a" "af2ac1fc1fa9ad360da48eb4df7f229097248181b9990bb711ea8095c5ad3e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af2ac1fc1fa9ad360da48eb4df7f229097248181b9990bb711ea8095c5ad3e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2ac1fc1fa9ad360da48eb4df7f229097248181b9990bb711ea8095c5ad3e7b", kill_on_drop: false }`
[INFO] [stdout] af2ac1fc1fa9ad360da48eb4df7f229097248181b9990bb711ea8095c5ad3e7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 8584d2a6cc64aca5ef2f1920adba8e64f52de2b6d4062e1fccc3c369b27e9e6b
[INFO] running `Command { std: "docker" "start" "-a" "8584d2a6cc64aca5ef2f1920adba8e64f52de2b6d4062e1fccc3c369b27e9e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking aligned-array v1.0.1
[INFO] [stderr]     Checking aligned-cmov v2.0.0
[INFO] [stderr]     Checking balanced-tree-index v2.0.0
[INFO] [stderr]     Checking mc-oblivious-traits v2.0.0
[INFO] [stderr]     Checking mc-oblivious-ram v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `test_helper`
[INFO] [stdout]    --> src/lib.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     use test_helper::{run_with_several_seeds, RngType};
[INFO] [stdout]     |         ^^^^^^^^^^^ use of undeclared crate or module `test_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ORAM`
[INFO] [stdout]   --> src/lib.rs:99:75
[INFO] [stdout]    |
[INFO] [stdout] 99 |     use mc_oblivious_traits::{rng_maker, testing, HeapORAMStorageCreator, ORAM};
[INFO] [stdout]    |                                                                           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mc-oblivious-ram`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8584d2a6cc64aca5ef2f1920adba8e64f52de2b6d4062e1fccc3c369b27e9e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8584d2a6cc64aca5ef2f1920adba8e64f52de2b6d4062e1fccc3c369b27e9e6b", kill_on_drop: false }`
[INFO] [stdout] 8584d2a6cc64aca5ef2f1920adba8e64f52de2b6d4062e1fccc3c369b27e9e6b