[INFO] crate iter_fallback 0.1.2 is already in cache
[INFO] extracting crate iter_fallback 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/iter_fallback/0.1.2
[INFO] extracting crate iter_fallback 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/iter_fallback/0.1.2
[INFO] validating manifest of iter_fallback-0.1.2 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 iter_fallback-0.1.2 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 iter_fallback-0.1.2
[INFO] finished frobbing iter_fallback-0.1.2
[INFO] frobbed toml for iter_fallback-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/iter_fallback/0.1.2/Cargo.toml
[INFO] started frobbing iter_fallback-0.1.2
[INFO] finished frobbing iter_fallback-0.1.2
[INFO] frobbed toml for iter_fallback-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/iter_fallback/0.1.2/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] 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 iter_fallback-0.1.2 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iter_fallback/0.1.2:/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] 36b368d9142c13e32330d875ef3dadba2cdb18406a5fcda69d9677d88c985957
[INFO] running `"docker" "start" "-a" "36b368d9142c13e32330d875ef3dadba2cdb18406a5fcda69d9677d88c985957"`
[INFO] [stderr]    Compiling iter_fallback v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `"docker" "inspect" "36b368d9142c13e32330d875ef3dadba2cdb18406a5fcda69d9677d88c985957"`
[INFO] running `"docker" "rm" "-f" "36b368d9142c13e32330d875ef3dadba2cdb18406a5fcda69d9677d88c985957"`
[INFO] [stdout] 36b368d9142c13e32330d875ef3dadba2cdb18406a5fcda69d9677d88c985957
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iter_fallback/0.1.2:/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] 3ec2cf2fff41daa88033d2862c234951a1c3ebfb92cd7b00d38b2a9fdba3ab99
[INFO] running `"docker" "start" "-a" "3ec2cf2fff41daa88033d2862c234951a1c3ebfb92cd7b00d38b2a9fdba3ab99"`
[INFO] [stderr]    Compiling iter_fallback v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "3ec2cf2fff41daa88033d2862c234951a1c3ebfb92cd7b00d38b2a9fdba3ab99"`
[INFO] running `"docker" "rm" "-f" "3ec2cf2fff41daa88033d2862c234951a1c3ebfb92cd7b00d38b2a9fdba3ab99"`
[INFO] [stdout] 3ec2cf2fff41daa88033d2862c234951a1c3ebfb92cd7b00d38b2a9fdba3ab99
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iter_fallback/0.1.2:/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"`
[INFO] [stdout] c301ea234bb9bfebc970a349c13a735de9ef87c912e032c65421c2026baf0e73
[INFO] running `"docker" "start" "-a" "c301ea234bb9bfebc970a349c13a735de9ef87c912e032c65421c2026baf0e73"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iter_fallback-e170f802888f330c
[INFO] [stderr]    Doc-tests iter_fallback
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "c301ea234bb9bfebc970a349c13a735de9ef87c912e032c65421c2026baf0e73"`
[INFO] running `"docker" "rm" "-f" "c301ea234bb9bfebc970a349c13a735de9ef87c912e032c65421c2026baf0e73"`
[INFO] [stdout] c301ea234bb9bfebc970a349c13a735de9ef87c912e032c65421c2026baf0e73