[INFO] fetching crate iota-utils 0.2.0...
[INFO] extracting crate iota-utils 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/iota-utils/0.2.0
[INFO] extracting crate iota-utils 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/iota-utils/0.2.0
[INFO] validating manifest of iota-utils-0.2.0 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 iota-utils-0.2.0 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 iota-utils-0.2.0
[INFO] finished frobbing iota-utils-0.2.0
[INFO] frobbed toml for iota-utils-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/iota-utils/0.2.0/Cargo.toml
[INFO] started frobbing iota-utils-0.2.0
[INFO] finished frobbing iota-utils-0.2.0
[INFO] frobbed toml for iota-utils-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/iota-utils/0.2.0/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] [stderr]     Blocking waiting for file lock on package cache lock
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iota-validation v0.2.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing iota-utils-0.2.0 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/iota-utils/0.2.0:/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] 1e1fe7d9909f40161c9a36abc18b264d96eeeaf5b37d7752bd2d4f9b37d3db01
[INFO] running `"docker" "start" "-a" "1e1fe7d9909f40161c9a36abc18b264d96eeeaf5b37d7752bd2d4f9b37d3db01"`
[INFO] [stderr]    Compiling iota-constants v0.2.0
[INFO] [stderr]    Compiling iota-conversion v0.2.0
[INFO] [stderr]    Compiling iota-crypto v0.2.0
[INFO] [stderr]    Compiling iota-model v0.2.0
[INFO] [stderr]    Compiling iota-validation v0.2.0
[INFO] [stderr]    Compiling iota-utils v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
[INFO] running `"docker" "inspect" "1e1fe7d9909f40161c9a36abc18b264d96eeeaf5b37d7752bd2d4f9b37d3db01"`
[INFO] running `"docker" "rm" "-f" "1e1fe7d9909f40161c9a36abc18b264d96eeeaf5b37d7752bd2d4f9b37d3db01"`
[INFO] [stdout] 1e1fe7d9909f40161c9a36abc18b264d96eeeaf5b37d7752bd2d4f9b37d3db01
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/iota-utils/0.2.0:/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] 0f9c347ef789bc69f49ade8e6c577bd94b28e7d2294458c80784ae73286bdc21
[INFO] running `"docker" "start" "-a" "0f9c347ef789bc69f49ade8e6c577bd94b28e7d2294458c80784ae73286bdc21"`
[INFO] [stderr]    Compiling iota-utils v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `"docker" "inspect" "0f9c347ef789bc69f49ade8e6c577bd94b28e7d2294458c80784ae73286bdc21"`
[INFO] running `"docker" "rm" "-f" "0f9c347ef789bc69f49ade8e6c577bd94b28e7d2294458c80784ae73286bdc21"`
[INFO] [stdout] 0f9c347ef789bc69f49ade8e6c577bd94b28e7d2294458c80784ae73286bdc21
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/iota-utils/0.2.0:/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"`
[INFO] [stdout] 26aed88adc086a4e5772825938b11e7d1cf9431848494f03ac94df337960d4bb
[INFO] running `"docker" "start" "-a" "26aed88adc086a4e5772825938b11e7d1cf9431848494f03ac94df337960d4bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iota_utils-594aa9c360f60817
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test seed_random_generator::tests::generate_valid_seed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iota_utils
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "26aed88adc086a4e5772825938b11e7d1cf9431848494f03ac94df337960d4bb"`
[INFO] running `"docker" "rm" "-f" "26aed88adc086a4e5772825938b11e7d1cf9431848494f03ac94df337960d4bb"`
[INFO] [stdout] 26aed88adc086a4e5772825938b11e7d1cf9431848494f03ac94df337960d4bb