[INFO] fetching crate bufferring 0.0.2...
[INFO] testing bufferring-0.0.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate bufferring 0.0.2 into /workspace/builds/worker-2-tc1/source
[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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bufferring 0.0.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding bit-vec v0.6.3 (available: v0.8.0)
[INFO] [stderr]       Adding proptest v1.2.0 (available: v1.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f93e46df273bf1fea1b91e143f4756b7b410822076714b469600bd134044e91b
[INFO] running `Command { std: "docker" "start" "-a" "f93e46df273bf1fea1b91e143f4756b7b410822076714b469600bd134044e91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f93e46df273bf1fea1b91e143f4756b7b410822076714b469600bd134044e91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f93e46df273bf1fea1b91e143f4756b7b410822076714b469600bd134044e91b", kill_on_drop: false }`
[INFO] [stdout] f93e46df273bf1fea1b91e143f4756b7b410822076714b469600bd134044e91b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a1ea6922f10808bc6707de0a4d663241ecc709feecb793728557d9d9669a4ee
[INFO] running `Command { std: "docker" "start" "-a" "9a1ea6922f10808bc6707de0a4d663241ecc709feecb793728557d9d9669a4ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferring v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "9a1ea6922f10808bc6707de0a4d663241ecc709feecb793728557d9d9669a4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a1ea6922f10808bc6707de0a4d663241ecc709feecb793728557d9d9669a4ee", kill_on_drop: false }`
[INFO] [stdout] 9a1ea6922f10808bc6707de0a4d663241ecc709feecb793728557d9d9669a4ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 030680681d19407ef210d3c14baae22c76787b524450c5329827455a9aeb463c
[INFO] running `Command { std: "docker" "start" "-a" "030680681d19407ef210d3c14baae22c76787b524450c5329827455a9aeb463c", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 unresolved module or unlinked crate `proptest`
[INFO] [stdout]  --> src/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `proptest`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `proptest`, use `cargo add proptest` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `proptest`
[INFO] [stdout]  --> src/masking/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proptest::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `proptest`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `proptest`, use `cargo add proptest` to add it to your `Cargo.toml`
[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]   |
[INFO] [stdout]  ::: src/masking/prop.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg(feature = "proptest")]
[INFO] [stdout]   |        -------------------- 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: unused imports: `MaskingBuffer`, `RingBuffer`, and `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]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[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] 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 7 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "030680681d19407ef210d3c14baae22c76787b524450c5329827455a9aeb463c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030680681d19407ef210d3c14baae22c76787b524450c5329827455a9aeb463c", kill_on_drop: false }`
[INFO] [stdout] 030680681d19407ef210d3c14baae22c76787b524450c5329827455a9aeb463c