[INFO] crate privdrop 0.3.2 is already in cache
[INFO] extracting crate privdrop 0.3.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/privdrop/0.3.2
[INFO] extracting crate privdrop 0.3.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/privdrop/0.3.2
[INFO] validating manifest of privdrop-0.3.2 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 privdrop-0.3.2 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 privdrop-0.3.2
[INFO] finished frobbing privdrop-0.3.2
[INFO] frobbed toml for privdrop-0.3.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/privdrop/0.3.2/Cargo.toml
[INFO] started frobbing privdrop-0.3.2
[INFO] finished frobbing privdrop-0.3.2
[INFO] frobbed toml for privdrop-0.3.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/privdrop/0.3.2/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing privdrop-0.3.2 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-6/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/privdrop/0.3.2:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b99cb35a5dc5074d6b17f0c57bec5061ea74d6a891c5868faa443a76575e1f75
[INFO] running `"docker" "start" "-a" "b99cb35a5dc5074d6b17f0c57bec5061ea74d6a891c5868faa443a76575e1f75"`
[INFO] [stderr]    Compiling privdrop v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:31:53
[INFO] [stderr]    |
[INFO] [stderr] 31 |             ErrorRepr::FromNix(ref e) => Some(e as &Error),
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "b99cb35a5dc5074d6b17f0c57bec5061ea74d6a891c5868faa443a76575e1f75"`
[INFO] running `"docker" "rm" "-f" "b99cb35a5dc5074d6b17f0c57bec5061ea74d6a891c5868faa443a76575e1f75"`
[INFO] [stdout] b99cb35a5dc5074d6b17f0c57bec5061ea74d6a891c5868faa443a76575e1f75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/privdrop/0.3.2:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b54a732dd6a56f6500472d16f7ae4e9774a7284bb2a2f6738fd60d0d2a1b4a28
[INFO] running `"docker" "start" "-a" "b54a732dd6a56f6500472d16f7ae4e9774a7284bb2a2f6738fd60d0d2a1b4a28"`
[INFO] [stderr]    Compiling privdrop v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:31:53
[INFO] [stderr]    |
[INFO] [stderr] 31 |             ErrorRepr::FromNix(ref e) => Some(e as &Error),
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "b54a732dd6a56f6500472d16f7ae4e9774a7284bb2a2f6738fd60d0d2a1b4a28"`
[INFO] running `"docker" "rm" "-f" "b54a732dd6a56f6500472d16f7ae4e9774a7284bb2a2f6738fd60d0d2a1b4a28"`
[INFO] [stdout] b54a732dd6a56f6500472d16f7ae4e9774a7284bb2a2f6738fd60d0d2a1b4a28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/privdrop/0.3.2:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 63f4da12a2fc4fbdc4ec1c01c3ec7719108e9d69c1f7dc75d9019539f55b73f9
[INFO] running `"docker" "start" "-a" "63f4da12a2fc4fbdc4ec1c01c3ec7719108e9d69c1f7dc75d9019539f55b73f9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/privdrop-9cfa1152634c2c41
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] Test was skipped because it needs to be run as root.
[INFO] [stdout] test privdrop::test_privdrop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests privdrop
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/privdrop.rs - privdrop::PrivDrop (line 33) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "63f4da12a2fc4fbdc4ec1c01c3ec7719108e9d69c1f7dc75d9019539f55b73f9"`
[INFO] running `"docker" "rm" "-f" "63f4da12a2fc4fbdc4ec1c01c3ec7719108e9d69c1f7dc75d9019539f55b73f9"`
[INFO] [stdout] 63f4da12a2fc4fbdc4ec1c01c3ec7719108e9d69c1f7dc75d9019539f55b73f9