[INFO] crate tiny-nix-ipc 0.1.0 is already in cache
[INFO] extracting crate tiny-nix-ipc 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tiny-nix-ipc/0.1.0
[INFO] extracting crate tiny-nix-ipc 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tiny-nix-ipc/0.1.0
[INFO] validating manifest of tiny-nix-ipc-0.1.0 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 tiny-nix-ipc-0.1.0 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 tiny-nix-ipc-0.1.0
[INFO] finished frobbing tiny-nix-ipc-0.1.0
[INFO] frobbed toml for tiny-nix-ipc-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tiny-nix-ipc/0.1.0/Cargo.toml
[INFO] started frobbing tiny-nix-ipc-0.1.0
[INFO] finished frobbing tiny-nix-ipc-0.1.0
[INFO] frobbed toml for tiny-nix-ipc-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tiny-nix-ipc/0.1.0/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 tiny-nix-ipc-0.1.0 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/tiny-nix-ipc/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 79add41b0f1cda8a698feec21657f04cbdac44d445c0ad7126944a8d72f9c37b
[INFO] running `"docker" "start" "-a" "79add41b0f1cda8a698feec21657f04cbdac44d445c0ad7126944a8d72f9c37b"`
[INFO] [stderr]    Compiling tiny-nix-ipc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `errno`
[INFO] [stderr]   --> src/lib.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 | use nix::{errno, unistd};
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RecvMsg`
[INFO] [stderr]   --> src/lib.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     recvmsg, RecvMsg, sendmsg, CmsgSpace, ControlMessage, MsgFlags,
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "79add41b0f1cda8a698feec21657f04cbdac44d445c0ad7126944a8d72f9c37b"`
[INFO] running `"docker" "rm" "-f" "79add41b0f1cda8a698feec21657f04cbdac44d445c0ad7126944a8d72f9c37b"`
[INFO] [stdout] 79add41b0f1cda8a698feec21657f04cbdac44d445c0ad7126944a8d72f9c37b
[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/tiny-nix-ipc/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] def0c62b901624ae4dced56a5dbc7a7442214520c55eb7aaf894b21c0b87d443
[INFO] running `"docker" "start" "-a" "def0c62b901624ae4dced56a5dbc7a7442214520c55eb7aaf894b21c0b87d443"`
[INFO] [stderr]    Compiling shmemfdrs v0.1.1
[INFO] [stderr]    Compiling tiny-nix-ipc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `errno`
[INFO] [stderr]   --> src/lib.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 | use nix::{errno, unistd};
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RecvMsg`
[INFO] [stderr]   --> src/lib.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     recvmsg, RecvMsg, sendmsg, CmsgSpace, ControlMessage, MsgFlags,
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "def0c62b901624ae4dced56a5dbc7a7442214520c55eb7aaf894b21c0b87d443"`
[INFO] running `"docker" "rm" "-f" "def0c62b901624ae4dced56a5dbc7a7442214520c55eb7aaf894b21c0b87d443"`
[INFO] [stdout] def0c62b901624ae4dced56a5dbc7a7442214520c55eb7aaf894b21c0b87d443
[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/tiny-nix-ipc/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2eb4208bd8c70e6c68d3d90164d6faa437246c86c5f39666e7aa1f8b8c409bfe
[INFO] running `"docker" "start" "-a" "2eb4208bd8c70e6c68d3d90164d6faa437246c86c5f39666e7aa1f8b8c409bfe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tiny_nix_ipc-df181256995cc5f3
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_slice_buf_too_short ... ok
[INFO] [stdout] test tests::test_slice_success ... ok
[INFO] [stdout] test tests::test_slice_with_len_success ... ok
[INFO] [stdout] test tests::test_fd_passing ... ok
[INFO] [stdout] test tests::test_struct_wrong_len ... ok
[INFO] [stdout] test tests::test_struct_success ... 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 tiny-nix-ipc
[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" "2eb4208bd8c70e6c68d3d90164d6faa437246c86c5f39666e7aa1f8b8c409bfe"`
[INFO] running `"docker" "rm" "-f" "2eb4208bd8c70e6c68d3d90164d6faa437246c86c5f39666e7aa1f8b8c409bfe"`
[INFO] [stdout] 2eb4208bd8c70e6c68d3d90164d6faa437246c86c5f39666e7aa1f8b8c409bfe