[INFO] crate rudp 0.2.1 is already in cache
[INFO] testing rudp-0.2.1 against 1.38.0 for beta-1.39-1
[INFO] extracting crate rudp 0.2.1 into work/builds/worker-10/source
[INFO] validating manifest of crates.io crate rudp 0.2.1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rudp 0.2.1
[INFO] finished tweaking crates.io crate rudp 0.2.1
[INFO] tweaked toml for crates.io crate rudp 0.2.1 written to work/builds/worker-10/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] da017eb471ba86138275a20b5db3d6049fdb85da8b32072176d93ce088608709
[INFO] running `"docker" "start" "-a" "da017eb471ba86138275a20b5db3d6049fdb85da8b32072176d93ce088608709"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling rudp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helper.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub resend_predicate: Box<FnMut(u32, Duration) -> bool>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u32, Duration) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.38s
[INFO] running `"docker" "inspect" "da017eb471ba86138275a20b5db3d6049fdb85da8b32072176d93ce088608709"`
[INFO] running `"docker" "rm" "-f" "da017eb471ba86138275a20b5db3d6049fdb85da8b32072176d93ce088608709"`
[INFO] [stdout] da017eb471ba86138275a20b5db3d6049fdb85da8b32072176d93ce088608709
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 87396155be16274ea37841809029fed4147b7236aa1728e1e77b1ccca4291b7c
[INFO] running `"docker" "start" "-a" "87396155be16274ea37841809029fed4147b7236aa1728e1e77b1ccca4291b7c"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling rudp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand`
[INFO] [stderr]   --> src/tests.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use rand::{thread_rng, Rng};
[INFO] [stderr]    |     ^^^^ maybe a missing crate `rand`?
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helper.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub resend_predicate: Box<FnMut(u32, Duration) -> bool>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u32, Duration) -> bool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `rudp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "87396155be16274ea37841809029fed4147b7236aa1728e1e77b1ccca4291b7c"`
[INFO] running `"docker" "rm" "-f" "87396155be16274ea37841809029fed4147b7236aa1728e1e77b1ccca4291b7c"`
[INFO] [stdout] 87396155be16274ea37841809029fed4147b7236aa1728e1e77b1ccca4291b7c