[INFO] fetching crate bufferring 0.0.2...
[INFO] checking bufferring-0.0.2 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bufferring 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate bufferring 0.0.2 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bufferring 0.0.2
[INFO] finished tweaking crates.io crate bufferring 0.0.2
[INFO] tweaked toml for crates.io crate bufferring 0.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proptest v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c384873e8bbb8f93f8cdf22d39393cefb78a96f1332793e3b7e03b00c87b9daf
[INFO] running `Command { std: "docker" "start" "-a" "c384873e8bbb8f93f8cdf22d39393cefb78a96f1332793e3b7e03b00c87b9daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c384873e8bbb8f93f8cdf22d39393cefb78a96f1332793e3b7e03b00c87b9daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c384873e8bbb8f93f8cdf22d39393cefb78a96f1332793e3b7e03b00c87b9daf", kill_on_drop: false }`
[INFO] [stdout] c384873e8bbb8f93f8cdf22d39393cefb78a96f1332793e3b7e03b00c87b9daf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb7fcb94c66658b3a95e46bd2e428e989aae17a4cfd42d0d6859765f8b2fa8d4
[INFO] running `Command { std: "docker" "start" "-a" "cb7fcb94c66658b3a95e46bd2e428e989aae17a4cfd42d0d6859765f8b2fa8d4", kill_on_drop: false }`
[INFO] [stderr]     Checking bufferring v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `super::prop`
[INFO] [stdout]  --> src/masking/tests.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::prop::*;
[INFO] [stdout]   |            ^^^^ could not find `prop` in `super`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `proptest`
[INFO] [stdout]  --> src/masking/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of undeclared crate or module `proptest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::masking::prop`
[INFO] [stdout]  --> src/tests.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::masking::prop as masking;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `prop` in `masking`
[INFO] [stdout]   |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> src/masking/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod prop;
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   = note: the item is gated behind the `proptest` feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `prop_compose` in this scope
[INFO] [stdout]  --> src/masking/tests.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | prop_compose! {
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]   --> src/masking/tests.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | proptest! {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proptest` in this scope
[INFO] [stdout]  --> src/tests.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | proptest! {
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]  --> src/storage/heap.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use alloc::{boxed::Box, vec::Vec};
[INFO] [stdout]   |             ^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Box` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/storage/heap.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 | use alloc::{boxed::Box, vec::Vec};
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MaskingBuffer`, `RingBuffer`, `storage::HeapStorage`
[INFO] [stdout]  --> src/masking/tests.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{RingBuffer, MaskingBuffer, storage::HeapStorage};
[INFO] [stdout]   |             ^^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::RingBuffer`
[INFO] [stdout]  --> src/tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::RingBuffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bufferring` (lib test) due to 8 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cb7fcb94c66658b3a95e46bd2e428e989aae17a4cfd42d0d6859765f8b2fa8d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7fcb94c66658b3a95e46bd2e428e989aae17a4cfd42d0d6859765f8b2fa8d4", kill_on_drop: false }`
[INFO] [stdout] cb7fcb94c66658b3a95e46bd2e428e989aae17a4cfd42d0d6859765f8b2fa8d4
