[INFO] crate utp2 0.1.0 is already in cache
[INFO] extracting crate utp2 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/utp2/0.1.0
[INFO] extracting crate utp2 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/utp2/0.1.0
[INFO] validating manifest of utp2-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of utp2-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing utp2-0.1.0
[INFO] finished frobbing utp2-0.1.0
[INFO] frobbed toml for utp2-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/utp2/0.1.0/Cargo.toml
[INFO] started frobbing utp2-0.1.0
[INFO] finished frobbing utp2-0.1.0
[INFO] frobbed toml for utp2-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/utp2/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing utp2-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/utp2/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 849288d2b98e30d716cdc94b018f55e0cbeee5edbf0930aff76338c9e88cca5f
[INFO] running `"docker" "start" "-a" "849288d2b98e30d716cdc94b018f55e0cbeee5edbf0930aff76338c9e88cca5f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling utp2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/util.rs:49:16
[INFO] [stderr]    |
[INFO] [stderr] 49 |     use rand::{self, Rng};
[INFO] [stderr]    |                ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `"docker" "inspect" "849288d2b98e30d716cdc94b018f55e0cbeee5edbf0930aff76338c9e88cca5f"`
[INFO] running `"docker" "rm" "-f" "849288d2b98e30d716cdc94b018f55e0cbeee5edbf0930aff76338c9e88cca5f"`
[INFO] [stdout] 849288d2b98e30d716cdc94b018f55e0cbeee5edbf0930aff76338c9e88cca5f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/utp2/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 165e752bfec52187b9999110281c48e73d71145697b2bf00968635ebf9f1b3bb
[INFO] running `"docker" "start" "-a" "165e752bfec52187b9999110281c48e73d71145697b2bf00968635ebf9f1b3bb"`
[INFO] [stderr]    Compiling utp2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `utp`
[INFO] [stderr]  --> examples/client.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate utp;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `utp2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0463]: can't find crate for `utp`
[INFO] [stderr]  --> examples/server.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate utp;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `utp2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "165e752bfec52187b9999110281c48e73d71145697b2bf00968635ebf9f1b3bb"`
[INFO] running `"docker" "rm" "-f" "165e752bfec52187b9999110281c48e73d71145697b2bf00968635ebf9f1b3bb"`
[INFO] [stdout] 165e752bfec52187b9999110281c48e73d71145697b2bf00968635ebf9f1b3bb