[INFO] crate mod_exp 1.0.1 is already in cache
[INFO] extracting crate mod_exp 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/mod_exp/1.0.1
[INFO] extracting crate mod_exp 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mod_exp/1.0.1
[INFO] validating manifest of mod_exp-1.0.1 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 mod_exp-1.0.1 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 mod_exp-1.0.1
[INFO] finished frobbing mod_exp-1.0.1
[INFO] frobbed toml for mod_exp-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mod_exp/1.0.1/Cargo.toml
[INFO] started frobbing mod_exp-1.0.1
[INFO] finished frobbing mod_exp-1.0.1
[INFO] frobbed toml for mod_exp-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mod_exp/1.0.1/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] 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 mod_exp-1.0.1 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-4/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/mod_exp/1.0.1:/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] cfd01a9bc278d3bf09c10968af32876da456c0930596aa2d4a897cb8c7606dd5
[INFO] running `"docker" "start" "-a" "cfd01a9bc278d3bf09c10968af32876da456c0930596aa2d4a897cb8c7606dd5"`
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling mod_exp v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "cfd01a9bc278d3bf09c10968af32876da456c0930596aa2d4a897cb8c7606dd5"`
[INFO] running `"docker" "rm" "-f" "cfd01a9bc278d3bf09c10968af32876da456c0930596aa2d4a897cb8c7606dd5"`
[INFO] [stdout] cfd01a9bc278d3bf09c10968af32876da456c0930596aa2d4a897cb8c7606dd5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/mod_exp/1.0.1:/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] 5f159071cf0f1b6f44c5ea2347526815e6b54fc254353671a6b5d2f20236f7c6
[INFO] running `"docker" "start" "-a" "5f159071cf0f1b6f44c5ea2347526815e6b54fc254353671a6b5d2f20236f7c6"`
[INFO] [stderr]    Compiling mod_exp v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "5f159071cf0f1b6f44c5ea2347526815e6b54fc254353671a6b5d2f20236f7c6"`
[INFO] running `"docker" "rm" "-f" "5f159071cf0f1b6f44c5ea2347526815e6b54fc254353671a6b5d2f20236f7c6"`
[INFO] [stdout] 5f159071cf0f1b6f44c5ea2347526815e6b54fc254353671a6b5d2f20236f7c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/mod_exp/1.0.1:/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"`
[INFO] [stdout] d639b47f2cd6b7a0acdd804f322cc31f9eb7dc2b0f915b73e3a9aae3618a176c
[INFO] running `"docker" "start" "-a" "d639b47f2cd6b7a0acdd804f322cc31f9eb7dc2b0f915b73e3a9aae3618a176c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mod_exp-49bd3797665510d2
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_mod_exp ... ok
[INFO] [stdout] test tests::test_overflow_lhs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mod_exp
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - mod_exp (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d639b47f2cd6b7a0acdd804f322cc31f9eb7dc2b0f915b73e3a9aae3618a176c"`
[INFO] running `"docker" "rm" "-f" "d639b47f2cd6b7a0acdd804f322cc31f9eb7dc2b0f915b73e3a9aae3618a176c"`
[INFO] [stdout] d639b47f2cd6b7a0acdd804f322cc31f9eb7dc2b0f915b73e3a9aae3618a176c