[INFO] crate rc-writer 1.1.4 is already in cache
[INFO] extracting crate rc-writer 1.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/rc-writer/1.1.4
[INFO] extracting crate rc-writer 1.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rc-writer/1.1.4
[INFO] validating manifest of rc-writer-1.1.4 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 rc-writer-1.1.4 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 rc-writer-1.1.4
[INFO] finished frobbing rc-writer-1.1.4
[INFO] frobbed toml for rc-writer-1.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rc-writer/1.1.4/Cargo.toml
[INFO] started frobbing rc-writer-1.1.4
[INFO] finished frobbing rc-writer-1.1.4
[INFO] frobbed toml for rc-writer-1.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rc-writer/1.1.4/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 rc-writer-1.1.4 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rc-writer/1.1.4:/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] aee2079a7fd19e75c86f4c7bf4c5ce6b28cb6c4f37e93fd5af15dcac774ce337
[INFO] running `"docker" "start" "-a" "aee2079a7fd19e75c86f4c7bf4c5ce6b28cb6c4f37e93fd5af15dcac774ce337"`
[INFO] [stderr]    Compiling rc-writer v1.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `"docker" "inspect" "aee2079a7fd19e75c86f4c7bf4c5ce6b28cb6c4f37e93fd5af15dcac774ce337"`
[INFO] running `"docker" "rm" "-f" "aee2079a7fd19e75c86f4c7bf4c5ce6b28cb6c4f37e93fd5af15dcac774ce337"`
[INFO] [stdout] aee2079a7fd19e75c86f4c7bf4c5ce6b28cb6c4f37e93fd5af15dcac774ce337
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rc-writer/1.1.4:/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] 0775ab23cb81355b7c5467a8598873818a40bb66df62ddf065b00207abf0793d
[INFO] running `"docker" "start" "-a" "0775ab23cb81355b7c5467a8598873818a40bb66df62ddf065b00207abf0793d"`
[INFO] [stderr]    Compiling rc-writer v1.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "0775ab23cb81355b7c5467a8598873818a40bb66df62ddf065b00207abf0793d"`
[INFO] running `"docker" "rm" "-f" "0775ab23cb81355b7c5467a8598873818a40bb66df62ddf065b00207abf0793d"`
[INFO] [stdout] 0775ab23cb81355b7c5467a8598873818a40bb66df62ddf065b00207abf0793d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rc-writer/1.1.4:/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] 798e69bea1253610a3db9ef775d857371197a7f691f656004f32f7a499e49758
[INFO] running `"docker" "start" "-a" "798e69bea1253610a3db9ef775d857371197a7f691f656004f32f7a499e49758"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rc_writer-55644e64b0df01ad
[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] [stderr]      Running /opt/crater/target/debug/deps/rc_option_writer-95b4e29114338cac
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test write_to_option_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rc_writer-2bf97a5d411e3138
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test to_vec ... ok
[INFO] [stderr]    Doc-tests rc-writer
[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 2 tests
[INFO] [stdout] test src/lib.rs -  (line 9) ... ok
[INFO] [stdout] test src/lib.rs -  (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "798e69bea1253610a3db9ef775d857371197a7f691f656004f32f7a499e49758"`
[INFO] running `"docker" "rm" "-f" "798e69bea1253610a3db9ef775d857371197a7f691f656004f32f7a499e49758"`
[INFO] [stdout] 798e69bea1253610a3db9ef775d857371197a7f691f656004f32f7a499e49758