[INFO] crate keygen 2.1.0 is already in cache
[INFO] extracting crate keygen 2.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/keygen/2.1.0
[INFO] extracting crate keygen 2.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/keygen/2.1.0
[INFO] validating manifest of keygen-2.1.0 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 keygen-2.1.0 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 keygen-2.1.0
[INFO] finished frobbing keygen-2.1.0
[INFO] frobbed toml for keygen-2.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/keygen/2.1.0/Cargo.toml
[INFO] started frobbing keygen-2.1.0
[INFO] finished frobbing keygen-2.1.0
[INFO] frobbed toml for keygen-2.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/keygen/2.1.0/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 keygen-2.1.0 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/keygen/2.1.0:/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] d81cb5f4f702a074a05e4107f54f83f161a4542ec090fa9b3cf1bd5b5e7e6680
[INFO] running `"docker" "start" "-a" "d81cb5f4f702a074a05e4107f54f83f161a4542ec090fa9b3cf1bd5b5e7e6680"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling serial-key v2.0.0
[INFO] [stderr]    Compiling keygen v2.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `"docker" "inspect" "d81cb5f4f702a074a05e4107f54f83f161a4542ec090fa9b3cf1bd5b5e7e6680"`
[INFO] running `"docker" "rm" "-f" "d81cb5f4f702a074a05e4107f54f83f161a4542ec090fa9b3cf1bd5b5e7e6680"`
[INFO] [stdout] d81cb5f4f702a074a05e4107f54f83f161a4542ec090fa9b3cf1bd5b5e7e6680
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/keygen/2.1.0:/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] d321211a82b3e04ce7631f9e76959b4badd473c3ab9513bfb45c016080d3fe91
[INFO] running `"docker" "start" "-a" "d321211a82b3e04ce7631f9e76959b4badd473c3ab9513bfb45c016080d3fe91"`
[INFO] [stderr]    Compiling keygen v2.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "d321211a82b3e04ce7631f9e76959b4badd473c3ab9513bfb45c016080d3fe91"`
[INFO] running `"docker" "rm" "-f" "d321211a82b3e04ce7631f9e76959b4badd473c3ab9513bfb45c016080d3fe91"`
[INFO] [stdout] d321211a82b3e04ce7631f9e76959b4badd473c3ab9513bfb45c016080d3fe91
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/keygen/2.1.0:/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"`
[INFO] [stdout] 07254c18f24d1cec43f7a054f4776ca6c5eba614140facfbdcd7fd52021ac9d6
[INFO] running `"docker" "start" "-a" "07254c18f24d1cec43f7a054f4776ca6c5eba614140facfbdcd7fd52021ac9d6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/keygen-69f4b051bf3485d9
[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" "07254c18f24d1cec43f7a054f4776ca6c5eba614140facfbdcd7fd52021ac9d6"`
[INFO] running `"docker" "rm" "-f" "07254c18f24d1cec43f7a054f4776ca6c5eba614140facfbdcd7fd52021ac9d6"`
[INFO] [stdout] 07254c18f24d1cec43f7a054f4776ca6c5eba614140facfbdcd7fd52021ac9d6