[INFO] updating cached repository mitsuhiko/systemfd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mitsuhiko/systemfd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mitsuhiko/systemfd" "work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mitsuhiko/systemfd" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitsuhiko/systemfd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitsuhiko/systemfd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27ce28a164c195d264dd3f37641202e3b397e3ba
[INFO] sha for GitHub repo mitsuhiko/systemfd: 27ce28a164c195d264dd3f37641202e3b397e3ba
[INFO] validating manifest of mitsuhiko/systemfd 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 mitsuhiko/systemfd 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 mitsuhiko/systemfd
[INFO] finished frobbing mitsuhiko/systemfd
[INFO] frobbed toml for mitsuhiko/systemfd written to work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd/Cargo.toml
[INFO] started frobbing mitsuhiko/systemfd
[INFO] finished frobbing mitsuhiko/systemfd
[INFO] frobbed toml for mitsuhiko/systemfd written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitsuhiko/systemfd/Cargo.toml
[INFO] crate mitsuhiko/systemfd 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 mitsuhiko/systemfd 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd:/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] bbaf9b854d6c1644ca642e6790cb456ed645062853bf7a364bf9b2ee5ba5724e
[INFO] running `"docker" "start" "-a" "bbaf9b854d6c1644ca642e6790cb456ed645062853bf7a364bf9b2ee5ba5724e"`
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling console v0.6.1
[INFO] [stderr]    Compiling systemfd v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: attribute must be of the form `#[ignore]` or `#[ignore = "reason"]`
[INFO] [stderr]  --> src/utils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[ignore(dead_code)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(ill_formed_attribute_input)] on by default
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `QuietExit`
[INFO] [stderr]  --> src/utils.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct QuietExit(pub i32);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/utils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[ignore(dead_code)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.67s
[INFO] running `"docker" "inspect" "bbaf9b854d6c1644ca642e6790cb456ed645062853bf7a364bf9b2ee5ba5724e"`
[INFO] running `"docker" "rm" "-f" "bbaf9b854d6c1644ca642e6790cb456ed645062853bf7a364bf9b2ee5ba5724e"`
[INFO] [stdout] bbaf9b854d6c1644ca642e6790cb456ed645062853bf7a364bf9b2ee5ba5724e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd:/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] 7e7ab348a7079256cc3955223ba8477b129da7d3ac7cac9c010a69dbc9c53c3c
[INFO] running `"docker" "start" "-a" "7e7ab348a7079256cc3955223ba8477b129da7d3ac7cac9c010a69dbc9c53c3c"`
[INFO] [stderr]    Compiling systemfd v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: attribute must be of the form `#[ignore]` or `#[ignore = "reason"]`
[INFO] [stderr]  --> src/utils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[ignore(dead_code)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(ill_formed_attribute_input)] on by default
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `QuietExit`
[INFO] [stderr]  --> src/utils.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct QuietExit(pub i32);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/utils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[ignore(dead_code)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "7e7ab348a7079256cc3955223ba8477b129da7d3ac7cac9c010a69dbc9c53c3c"`
[INFO] running `"docker" "rm" "-f" "7e7ab348a7079256cc3955223ba8477b129da7d3ac7cac9c010a69dbc9c53c3c"`
[INFO] [stdout] 7e7ab348a7079256cc3955223ba8477b129da7d3ac7cac9c010a69dbc9c53c3c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mitsuhiko/systemfd:/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] fcf19f5d676dd9cd4cf937b5da58df3b64733c9148edf5e3ed3b4c63766c24bb
[INFO] running `"docker" "start" "-a" "fcf19f5d676dd9cd4cf937b5da58df3b64733c9148edf5e3ed3b4c63766c24bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/systemfd-87d80c8b8ed64667
[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" "fcf19f5d676dd9cd4cf937b5da58df3b64733c9148edf5e3ed3b4c63766c24bb"`
[INFO] running `"docker" "rm" "-f" "fcf19f5d676dd9cd4cf937b5da58df3b64733c9148edf5e3ed3b4c63766c24bb"`
[INFO] [stdout] fcf19f5d676dd9cd4cf937b5da58df3b64733c9148edf5e3ed3b4c63766c24bb