[INFO] crate challenge-bypass-ristretto 1.0.0-pre.0 is already in cache
[INFO] extracting crate challenge-bypass-ristretto 1.0.0-pre.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/challenge-bypass-ristretto/1.0.0-pre.0
[INFO] extracting crate challenge-bypass-ristretto 1.0.0-pre.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/challenge-bypass-ristretto/1.0.0-pre.0
[INFO] validating manifest of challenge-bypass-ristretto-1.0.0-pre.0 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 challenge-bypass-ristretto-1.0.0-pre.0 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 challenge-bypass-ristretto-1.0.0-pre.0
[INFO] finished frobbing challenge-bypass-ristretto-1.0.0-pre.0
[INFO] frobbed toml for challenge-bypass-ristretto-1.0.0-pre.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/challenge-bypass-ristretto/1.0.0-pre.0/Cargo.toml
[INFO] started frobbing challenge-bypass-ristretto-1.0.0-pre.0
[INFO] finished frobbing challenge-bypass-ristretto-1.0.0-pre.0
[INFO] frobbed toml for challenge-bypass-ristretto-1.0.0-pre.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/challenge-bypass-ristretto/1.0.0-pre.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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" "+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 challenge-bypass-ristretto-1.0.0-pre.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/challenge-bypass-ristretto/1.0.0-pre.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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] fe10213e315ded588b4038d970d44b02acb8b5a355138d8324fdb01161a69e3b
[INFO] running `"docker" "start" "-a" "fe10213e315ded588b4038d970d44b02acb8b5a355138d8324fdb01161a69e3b"`
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling challenge-bypass-ristretto v1.0.0-pre.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.79s
[INFO] running `"docker" "inspect" "fe10213e315ded588b4038d970d44b02acb8b5a355138d8324fdb01161a69e3b"`
[INFO] running `"docker" "rm" "-f" "fe10213e315ded588b4038d970d44b02acb8b5a355138d8324fdb01161a69e3b"`
[INFO] [stdout] fe10213e315ded588b4038d970d44b02acb8b5a355138d8324fdb01161a69e3b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/challenge-bypass-ristretto/1.0.0-pre.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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2089d3fdd8d1c6d3caac75c06f84ca49fd0e90398d850601941eb9e0bb92e64d
[INFO] running `"docker" "start" "-a" "2089d3fdd8d1c6d3caac75c06f84ca49fd0e90398d850601941eb9e0bb92e64d"`
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling challenge-bypass-ristretto v1.0.0-pre.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand::rngs::OsRng`
[INFO] [stderr]    --> src/oprf.rs:579:9
[INFO] [stderr]     |
[INFO] [stderr] 579 |     use rand::rngs::OsRng;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^ no `OsRng` in `rngs`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::rngs::OsRng`
[INFO] [stderr]    --> src/dleq.rs:360:9
[INFO] [stderr]     |
[INFO] [stderr] 360 |     use rand::rngs::OsRng;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^ no `OsRng` in `rngs`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::rngs::OsRng`
[INFO] [stderr]  --> tests/e2e.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::rngs::OsRng;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `OsRng` in `rngs`
[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 `challenge-bypass-ristretto`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `challenge-bypass-ristretto`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2089d3fdd8d1c6d3caac75c06f84ca49fd0e90398d850601941eb9e0bb92e64d"`
[INFO] running `"docker" "rm" "-f" "2089d3fdd8d1c6d3caac75c06f84ca49fd0e90398d850601941eb9e0bb92e64d"`
[INFO] [stdout] 2089d3fdd8d1c6d3caac75c06f84ca49fd0e90398d850601941eb9e0bb92e64d