[INFO] crate magic-wormhole 0.0.1 is already in cache
[INFO] extracting crate magic-wormhole 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/magic-wormhole/0.0.1
[INFO] extracting crate magic-wormhole 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/magic-wormhole/0.0.1
[INFO] validating manifest of magic-wormhole-0.0.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of magic-wormhole-0.0.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing magic-wormhole-0.0.1
[INFO] finished frobbing magic-wormhole-0.0.1
[INFO] frobbed toml for magic-wormhole-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/magic-wormhole/0.0.1/Cargo.toml
[INFO] started frobbing magic-wormhole-0.0.1
[INFO] finished frobbing magic-wormhole-0.0.1
[INFO] frobbed toml for magic-wormhole-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/magic-wormhole/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing magic-wormhole-0.0.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/magic-wormhole/0.0.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ddf1b1b9c2dc0a2c0bb07393b681ea046431e90f289b09a7d6882e50b4d5caf1
[INFO] running `"docker" "start" "-a" "ddf1b1b9c2dc0a2c0bb07393b681ea046431e90f289b09a7d6882e50b4d5caf1"`
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling ws v0.7.9
[INFO] [stderr]    Compiling libsodium-sys v0.2.2
[INFO] [stderr]    Compiling hkdf v0.7.1
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling spake2 v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling websocket v0.22.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling sodiumoxide v0.2.2
[INFO] [stderr]    Compiling magic-wormhole v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/bin/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 41s
[INFO] running `"docker" "inspect" "ddf1b1b9c2dc0a2c0bb07393b681ea046431e90f289b09a7d6882e50b4d5caf1"`
[INFO] running `"docker" "rm" "-f" "ddf1b1b9c2dc0a2c0bb07393b681ea046431e90f289b09a7d6882e50b4d5caf1"`
[INFO] [stdout] ddf1b1b9c2dc0a2c0bb07393b681ea046431e90f289b09a7d6882e50b4d5caf1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/magic-wormhole/0.0.1:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b15d5ff4d0f244092931d6393d88635558ad101f301a80521f3c14e539171e56
[INFO] running `"docker" "start" "-a" "b15d5ff4d0f244092931d6393d88635558ad101f301a80521f3c14e539171e56"`
[INFO] [stderr]    Compiling rustyline v3.0.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-3.0.0/src/lib.rs:655:43
[INFO] [stderr]     |
[INFO] [stderr] 655 |             editor.add_history_entry(line.as_ref());
[INFO] [stderr]     |                                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `rustyline`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b15d5ff4d0f244092931d6393d88635558ad101f301a80521f3c14e539171e56"`
[INFO] running `"docker" "rm" "-f" "b15d5ff4d0f244092931d6393d88635558ad101f301a80521f3c14e539171e56"`
[INFO] [stdout] b15d5ff4d0f244092931d6393d88635558ad101f301a80521f3c14e539171e56