[INFO] updating cached repository mmastrac/rust-libc-print
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mmastrac/rust-libc-print
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mmastrac/rust-libc-print" "work/ex/beta-1.38-1/sources/1.37.0/gh/mmastrac/rust-libc-print"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mmastrac/rust-libc-print'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mmastrac/rust-libc-print" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a23c68763268d671dc1ea7d1bc262d1ad4d8885e
[INFO] sha for GitHub repo mmastrac/rust-libc-print: a23c68763268d671dc1ea7d1bc262d1ad4d8885e
[INFO] validating manifest of mmastrac/rust-libc-print 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 mmastrac/rust-libc-print 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 mmastrac/rust-libc-print
[INFO] finished frobbing mmastrac/rust-libc-print
[INFO] frobbed toml for mmastrac/rust-libc-print written to work/ex/beta-1.38-1/sources/1.37.0/gh/mmastrac/rust-libc-print/Cargo.toml
[INFO] started frobbing mmastrac/rust-libc-print
[INFO] finished frobbing mmastrac/rust-libc-print
[INFO] frobbed toml for mmastrac/rust-libc-print written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print/Cargo.toml
[INFO] crate mmastrac/rust-libc-print already has a lockfile, it will not be regenerated
[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 mmastrac/rust-libc-print 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print:/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] 4880facc57a181642c4b097649611b33b73e7538af579d271d4f9e8f1107e359
[INFO] running `"docker" "start" "-a" "4880facc57a181642c4b097649611b33b73e7538af579d271d4f9e8f1107e359"`
[INFO] [stderr]    Compiling libc-print v0.1.7 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "4880facc57a181642c4b097649611b33b73e7538af579d271d4f9e8f1107e359"`
[INFO] running `"docker" "rm" "-f" "4880facc57a181642c4b097649611b33b73e7538af579d271d4f9e8f1107e359"`
[INFO] [stdout] 4880facc57a181642c4b097649611b33b73e7538af579d271d4f9e8f1107e359
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print:/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] 09a218b055041c240dfadb4256ed28bc00cc221f132160f624fef6094193b089
[INFO] running `"docker" "start" "-a" "09a218b055041c240dfadb4256ed28bc00cc221f132160f624fef6094193b089"`
[INFO] [stderr]    Compiling libc-print v0.1.7 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "09a218b055041c240dfadb4256ed28bc00cc221f132160f624fef6094193b089"`
[INFO] running `"docker" "rm" "-f" "09a218b055041c240dfadb4256ed28bc00cc221f132160f624fef6094193b089"`
[INFO] [stdout] 09a218b055041c240dfadb4256ed28bc00cc221f132160f624fef6094193b089
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmastrac/rust-libc-print:/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] aa87e1b0a2149686e5b1ae48749a26a9417cf53d565b66ad07ad751fb98e34a9
[INFO] running `"docker" "start" "-a" "aa87e1b0a2149686e5b1ae48749a26a9417cf53d565b66ad07ad751fb98e34a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/libc_print-0a9adbd2332b73d6
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr!
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stderr ... ok
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stdout ... ok
[INFO] [stdout] stdout fd = 1
[INFO] [stdout] stdout!
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stdout] test tests::test_stdout_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libc_print
[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" "aa87e1b0a2149686e5b1ae48749a26a9417cf53d565b66ad07ad751fb98e34a9"`
[INFO] running `"docker" "rm" "-f" "aa87e1b0a2149686e5b1ae48749a26a9417cf53d565b66ad07ad751fb98e34a9"`
[INFO] [stdout] aa87e1b0a2149686e5b1ae48749a26a9417cf53d565b66ad07ad751fb98e34a9