[INFO] fetching crate roaring-graphs 0.12.0...
[INFO] testing roaring-graphs-0.12.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate roaring-graphs 0.12.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate roaring-graphs 0.12.0
[INFO] finished tweaking crates.io crate roaring-graphs 0.12.0
[INFO] tweaked toml for crates.io crate roaring-graphs 0.12.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate roaring-graphs 0.12.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 63 packages to highest compatible versions
[INFO] [stderr]       Adding cov-mark v1.1.0 (available: v2.2.0)
[INFO] [stderr]       Adding rand v0.8.8 (available: v0.10.3)
[INFO] [stderr]       Adding roaring v0.10.12 (available: v0.11.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cov-mark v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1
[INFO] running `Command { std: "docker" "start" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytemuck v1.25.2
[INFO] [stderr]    Compiling cov-mark v1.1.0
[INFO] [stderr]    Compiling rand v0.8.8
[INFO] [stderr]    Compiling roaring v0.10.12
[INFO] [stderr]    Compiling roaring-graphs v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `TestRng: rand::Rng` is not satisfied
[INFO] [stdout]    --> src/dag.rs:476:85
[INFO] [stdout]     |
[INFO] [stdout] 476 |             Uniform::new(self.vertex_count.start, self.vertex_count.end - 1).sample(runner.rng());
[INFO] [stdout]     |                                                                              ------ ^^^^^^^^^^^^ the trait `rand::RngCore` is not implemented for `TestRng`
[INFO] [stdout]     |                                                                              |
[INFO] [stdout]     |                                                                              required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: there are multiple different versions of crate `rand_core` in the dependency graph
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.6.4/src/lib.rs:142:1
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub trait RngCore {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^ this is the expected trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.10.1/src/lib.rs:257:1
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub trait RngCore: Rng {}
[INFO] [stdout]     | ---------------------- this is the found trait
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = help: the following other types implement trait `rand::RngCore`:
[INFO] [stdout]               &'a mut R
[INFO] [stdout]               Box<R>
[INFO] [stdout]               OsRng
[INFO] [stdout]               ReadRng<R>
[INFO] [stdout]               ReseedingRng<R, Rsdr>
[INFO] [stdout]               StdRng
[INFO] [stdout]               StepRng
[INFO] [stdout]               ThreadRng
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: required for `TestRng` to implement `rand::Rng`
[INFO] [stdout] note: required by a bound in `rand::distributions::Distribution::sample`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.8/src/distributions/distribution.rs:37:18
[INFO] [stdout]     |
[INFO] [stdout]  37 |     fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> T;
[INFO] [stdout]     |                  ^^^ required by this bound in `Distribution::sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_bool` found for mutable reference `&mut TestRng` in the current scope
[INFO] [stdout]    --> src/dag.rs:487:33
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 if runner.rng().gen_bool(self.edge_probability) {
[INFO] [stdout]     |                                 ^^^^^^^^ method not found in `&mut TestRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `TestRng: rand::Rng` is not satisfied
[INFO] [stdout]    --> src/delta_debugging_bitmap.rs:53:76
[INFO] [stdout]     |
[INFO] [stdout]  53 |         let size = Uniform::new(self.size.start, self.size.end - 1).sample(runner.rng());
[INFO] [stdout]     |                                                                     ------ ^^^^^^^^^^^^ the trait `rand::RngCore` is not implemented for `TestRng`
[INFO] [stdout]     |                                                                     |
[INFO] [stdout]     |                                                                     required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: there are multiple different versions of crate `rand_core` in the dependency graph
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.6.4/src/lib.rs:142:1
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub trait RngCore {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^ this is the expected trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.10.1/src/lib.rs:257:1
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub trait RngCore: Rng {}
[INFO] [stdout]     | ---------------------- this is the found trait
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = help: the following other types implement trait `rand::RngCore`:
[INFO] [stdout]               &'a mut R
[INFO] [stdout]               Box<R>
[INFO] [stdout]               OsRng
[INFO] [stdout]               ReadRng<R>
[INFO] [stdout]               ReseedingRng<R, Rsdr>
[INFO] [stdout]               StdRng
[INFO] [stdout]               StepRng
[INFO] [stdout]               ThreadRng
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: required for `TestRng` to implement `rand::Rng`
[INFO] [stdout] note: required by a bound in `rand::distributions::Distribution::sample`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.8.8/src/distributions/distribution.rs:37:18
[INFO] [stdout]     |
[INFO] [stdout]  37 |     fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> T;
[INFO] [stdout]     |                  ^^^ required by this bound in `Distribution::sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `gen_bool` exists for mutable reference `&mut TestRng`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/delta_debugging_bitmap.rs:54:61
[INFO] [stdout]     |
[INFO] [stdout]  54 |         let iter = (0..size as u32).filter(|_| runner.rng().gen_bool(self.ones_probability));
[INFO] [stdout]     |                                                             ^^^^^^^^ method cannot be called on `&mut TestRng` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proptest-1.12.0/src/test_runner/rng.rs:115:1
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct TestRng {
[INFO] [stdout]     | ------------------ doesn't satisfy `TestRng: rand::RngCore` or `TestRng: rand::Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `TestRng: rand::RngCore`
[INFO] [stdout]             which is required by `TestRng: rand::Rng`
[INFO] [stdout]             `&mut TestRng: rand::RngCore`
[INFO] [stdout]             which is required by `&mut TestRng: rand::Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roaring-graphs` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1", kill_on_drop: false }`
[INFO] [stdout] 615f91eb49e8b17f4227618c789cc6d526b82351640dcef3a0f6ab5cd23939d1
