Oct 15 06:41:46.187 INFO testing SpamapS/rubble against try#40d4795669493f1965de7c44029c69552134fe1f for rustdoc-test-static-cling-1
Oct 15 06:41:46.188 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-7/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/rustdoc-test-static-cling-1/try#40d4795669493f1965de7c44029c69552134fe1f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +40d4795669493f1965de7c44029c69552134fe1f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 15 06:41:46.631 INFO blam! 5880d6d1ed1d5c254fd03eba2c97b38097e65dad35f26238ce0b7e0d7a2533b0
Oct 15 06:41:46.639 INFO running `"docker" "start" "-a" "5880d6d1ed1d5c254fd03eba2c97b38097e65dad35f26238ce0b7e0d7a2533b0"`
Oct 15 06:41:47.723 INFO kablam! usermod: no changes
Oct 15 06:41:47.842 INFO kablam!    Compiling enum_derive v0.1.7
Oct 15 06:41:47.843 INFO kablam!    Compiling custom_derive v0.1.7
Oct 15 06:41:47.844 INFO kablam!    Compiling syscall v0.2.1
Oct 15 06:41:47.855 INFO kablam!    Compiling isatty v0.1.3
Oct 15 06:41:47.855 INFO kablam!    Compiling unreachable v0.1.1
Oct 15 06:41:47.855 INFO kablam!    Compiling nix v0.8.0
Oct 15 06:41:47.855 INFO kablam!    Compiling error-chain v0.8.1
Oct 15 06:41:49.531 INFO kablam!    Compiling thread_local v0.3.3
Oct 15 06:41:51.147 INFO kablam!    Compiling caps v0.0.1
Oct 15 06:41:51.323 INFO kablam!    Compiling regex v0.2.1
Oct 15 06:41:58.111 INFO kablam!    Compiling env_logger v0.4.2
Oct 15 06:41:59.593 INFO kablam!    Compiling rubble v0.1.0 (/source)
Oct 15 06:42:00.759 INFO kablam! warning: unused import: `CLONE_NEWIPC`
Oct 15 06:42:00.759 INFO kablam!   --> src/main.rs:24:73
Oct 15 06:42:00.759 INFO kablam!    |
Oct 15 06:42:00.759 INFO kablam! 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Oct 15 06:42:00.759 INFO kablam!    |                                                                         ^^^^^^^^^^^^
Oct 15 06:42:00.759 INFO kablam!    |
Oct 15 06:42:00.759 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 15 06:42:00.759 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: unused variable: `real_gid`
Oct 15 06:42:00.927 INFO kablam!   --> src/main.rs:54:35
Oct 15 06:42:00.927 INFO kablam!    |
Oct 15 06:42:00.927 INFO kablam! 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Oct 15 06:42:00.927 INFO kablam!    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Oct 15 06:42:00.927 INFO kablam!    |
Oct 15 06:42:00.927 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 15 06:42:00.927 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: unused variable: `overflow_uid`
Oct 15 06:42:00.927 INFO kablam!    --> src/main.rs:341:10
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 15 06:42:00.927 INFO kablam!     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Oct 15 06:42:00.927 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: unused variable: `overflow_gid`
Oct 15 06:42:00.927 INFO kablam!    --> src/main.rs:341:24
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 15 06:42:00.927 INFO kablam!     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Oct 15 06:42:00.927 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: variable `host_tty_dev` is assigned to, but never used
Oct 15 06:42:00.927 INFO kablam!    --> src/main.rs:343:13
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam! 343 |     let mut host_tty_dev: Option<String> = None;
Oct 15 06:42:00.927 INFO kablam!     |             ^^^^^^^^^^^^
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam!     = note: consider using `_host_tty_dev` instead
Oct 15 06:42:00.927 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: value assigned to `host_tty_dev` is never read
Oct 15 06:42:00.927 INFO kablam!    --> src/main.rs:345:9
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam! 345 |         host_tty_dev = Some(unsafe {
Oct 15 06:42:00.927 INFO kablam!     |         ^^^^^^^^^^^^
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Oct 15 06:42:00.927 INFO kablam! 
Oct 15 06:42:00.927 INFO kablam! warning: unused variable: `opt_sandbox_uid`
Oct 15 06:42:00.927 INFO kablam!    --> src/main.rs:421:9
Oct 15 06:42:00.927 INFO kablam!     |
Oct 15 06:42:00.927 INFO kablam! 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Oct 15 06:42:00.928 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: unused variable: `opt_sandbox_gid`
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:425:9
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Oct 15 06:42:00.928 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: unused variable: `proc_wd`
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:447:9
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 447 |     let proc_wd = WalkDir::new("/proc");
Oct 15 06:42:00.928 INFO kablam!     |         ^^^^^^^ help: consider using `_proc_wd` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: variable `event_fd` is assigned to, but never used
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:467:13
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 467 |     let mut event_fd: Option<i32> = None;
Oct 15 06:42:00.928 INFO kablam!     |             ^^^^^^^^
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam!     = note: consider using `_event_fd` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: value assigned to `event_fd` is never read
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:469:9
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Oct 15 06:42:00.928 INFO kablam!     |         ^^^^^^^^
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: unused variable: `e`
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:497:17
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Oct 15 06:42:00.928 INFO kablam!     |                 ^ help: consider using `_e` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.928 INFO kablam! warning: unused variable: `child_wait_fd`
Oct 15 06:42:00.928 INFO kablam!    --> src/main.rs:509:9
Oct 15 06:42:00.928 INFO kablam!     |
Oct 15 06:42:00.928 INFO kablam! 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Oct 15 06:42:00.928 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Oct 15 06:42:00.928 INFO kablam! 
Oct 15 06:42:00.999 INFO kablam! error: attempt to subtract with overflow
Oct 15 06:42:00.999 INFO kablam!   --> src/main.rs:86:38
Oct 15 06:42:00.999 INFO kablam!    |
Oct 15 06:42:00.999 INFO kablam! 86 |             let new_fsuid = setfsuid(0 - 1 as u32);
Oct 15 06:42:00.999 INFO kablam!    |                                      ^^^^^^^^^^^^
Oct 15 06:42:00.999 INFO kablam!    |
Oct 15 06:42:00.999 INFO kablam!    = note: #[deny(const_err)] on by default
Oct 15 06:42:00.999 INFO kablam! 
Oct 15 06:42:01.125 INFO kablam! error: aborting due to previous error
Oct 15 06:42:01.125 INFO kablam! 
Oct 15 06:42:01.143 INFO kablam! error: Could not compile `rubble`.
Oct 15 06:42:01.143 INFO kablam! 
Oct 15 06:42:01.143 INFO kablam! To learn more, run the command again with --verbose.
Oct 15 06:42:01.145 INFO kablam! su: No module specific data is present
Oct 15 06:42:01.839 INFO running `"docker" "rm" "-f" "5880d6d1ed1d5c254fd03eba2c97b38097e65dad35f26238ce0b7e0d7a2533b0"`
Oct 15 06:42:02.247 INFO blam! 5880d6d1ed1d5c254fd03eba2c97b38097e65dad35f26238ce0b7e0d7a2533b0