[INFO] fetching crate rexer 0.1.2...
[INFO] testing rexer-0.1.2 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate rexer 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rexer 0.1.2
[INFO] finished tweaking crates.io crate rexer 0.1.2
[INFO] tweaked toml for crates.io crate rexer 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rexer 0.1.2 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 55 packages to highest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (available: v6.2.1)
[INFO] [stderr]       Adding fake v2.10.0 (available: v5.1.0)
[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 fake v2.10.0
[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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30
[INFO] running `Command { std: "docker" "start" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", 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" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30" "/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" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", 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" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.26
[INFO] [stderr]    Compiling futures-sink v0.3.34
[INFO] [stderr]    Compiling libc v0.2.190
[INFO] [stderr]    Compiling cfg-if v1.0.5
[INFO] [stderr]    Compiling smallvec v1.16.2
[INFO] [stderr]    Compiling tokio v1.53.2
[INFO] [stderr]    Compiling futures-channel v0.3.34
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling tokio-util v0.7.19
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling rexer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.35s
[INFO] running `Command { std: "docker" "inspect" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", 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" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.60
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling mio v1.2.4
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling socket2 v0.6.5
[INFO] [stderr]    Compiling chacha20 v0.10.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling deunicode v1.6.2
[INFO] [stderr]    Compiling rand v0.10.3
[INFO] [stderr]    Compiling tokio v1.53.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.8
[INFO] [stderr]    Compiling tokio-util v0.7.19
[INFO] [stderr]    Compiling rexer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling fake v2.10.0
[INFO] [stdout] error[E0277]: the trait bound `StdRng: fake::Rng` is not satisfied
[INFO] [stdout]    --> src/mux.rs:118:64
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 let expected_msg: String = Faker.fake_with_rng(rng);
[INFO] [stdout]     |                                                  ------------- ^^^ the trait `rand_core::RngCore` is not implemented for `StdRng`
[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_core::RngCore`:
[INFO] [stdout]               &'a mut R
[INFO] [stdout]               Box<R>
[INFO] [stdout]               rand::rngs::adapter::read::ReadRng<R>
[INFO] [stdout]               rand::rngs::adapter::reseeding::ReseedingRng<R, Rsdr>
[INFO] [stdout]               rand::rngs::mock::StepRng
[INFO] [stdout]               rand::rngs::std::StdRng
[INFO] [stdout]               rand::rngs::thread::ThreadRng
[INFO] [stdout]               rand_chacha::chacha::ChaCha12Rng
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: there are multiple different versions of crate `rand` in the dependency graph
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = note: required for `StdRng` to implement `fake::Rng`
[INFO] [stdout] note: required by a bound in `fake_with_rng`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fake-2.10.0/src/lib.rs:209:28
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn fake_with_rng<U, R: Rng + ?Sized>(&self, rng: &mut R) -> U
[INFO] [stdout]     |                            ^^^ required by this bound in `Fake::fake_with_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StdRng: fake::Rng` is not satisfied
[INFO] [stdout]    --> src/mux.rs:89:68
[INFO] [stdout]     |
[INFO] [stdout]  89 |                     let expected_msg: String = Faker.fake_with_rng(rng);
[INFO] [stdout]     |                                                      ------------- ^^^ the trait `rand_core::RngCore` is not implemented for `StdRng`
[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_core::RngCore`:
[INFO] [stdout]               &'a mut R
[INFO] [stdout]               Box<R>
[INFO] [stdout]               rand::rngs::adapter::read::ReadRng<R>
[INFO] [stdout]               rand::rngs::adapter::reseeding::ReseedingRng<R, Rsdr>
[INFO] [stdout]               rand::rngs::mock::StepRng
[INFO] [stdout]               rand::rngs::std::StdRng
[INFO] [stdout]               rand::rngs::thread::ThreadRng
[INFO] [stdout]               rand_chacha::chacha::ChaCha12Rng
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: there are multiple different versions of crate `rand` in the dependency graph
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = note: required for `StdRng` to implement `fake::Rng`
[INFO] [stdout] note: required by a bound in `fake_with_rng`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fake-2.10.0/src/lib.rs:209:28
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn fake_with_rng<U, R: Rng + ?Sized>(&self, rng: &mut R) -> U
[INFO] [stdout]     |                            ^^^ required by this bound in `Fake::fake_with_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `StdRng: fake::Rng` is not satisfied
[INFO] [stdout]    --> src/mux.rs:103:55
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let msg: String = Faker.fake_with_rng(rng);
[INFO] [stdout]     |                                         ------------- ^^^ the trait `rand_core::RngCore` is not implemented for `StdRng`
[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_core::RngCore`:
[INFO] [stdout]               &'a mut R
[INFO] [stdout]               Box<R>
[INFO] [stdout]               rand::rngs::adapter::read::ReadRng<R>
[INFO] [stdout]               rand::rngs::adapter::reseeding::ReseedingRng<R, Rsdr>
[INFO] [stdout]               rand::rngs::mock::StepRng
[INFO] [stdout]               rand::rngs::std::StdRng
[INFO] [stdout]               rand::rngs::thread::ThreadRng
[INFO] [stdout]               rand_chacha::chacha::ChaCha12Rng
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: there are multiple different versions of crate `rand` in the dependency graph
[INFO] [stdout]     = help: you can use `cargo tree` to explore your dependency tree
[INFO] [stdout]     = note: required for `StdRng` to implement `fake::Rng`
[INFO] [stdout] note: required by a bound in `fake_with_rng`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fake-2.10.0/src/lib.rs:209:28
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn fake_with_rng<U, R: Rng + ?Sized>(&self, rng: &mut R) -> U
[INFO] [stdout]     |                            ^^^ required by this bound in `Fake::fake_with_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rexer` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30", kill_on_drop: false }`
[INFO] [stdout] fd66165cc34c5c113b3aff45ac6b1b4ff226b9f65159f48a20a92df4c92dbb30
