Oct 27 09:40:31.280 INFO checking SpamapS/rubble against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 09:40:31.280 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-6/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-alt check --frozen --all --all-targets" "-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 27 09:40:31.631 INFO blam! ca5390f805ed1bd8a82e019b0471021fa8255577ed59be89041432da4566b0dd
Oct 27 09:40:31.637 INFO running `"docker" "start" "-a" "ca5390f805ed1bd8a82e019b0471021fa8255577ed59be89041432da4566b0dd"`
Oct 27 09:40:32.283 INFO kablam! usermod: no changes
Oct 27 09:40:32.410 INFO kablam!     Checking enum_derive v0.1.7
Oct 27 09:40:32.410 INFO kablam!     Checking syscall v0.2.1
Oct 27 09:40:32.415 INFO kablam!     Checking isatty v0.1.3
Oct 27 09:40:32.415 INFO kablam!     Checking nix v0.8.0
Oct 27 09:40:32.415 INFO kablam!     Checking thread_local v0.3.3
Oct 27 09:40:32.415 INFO kablam!     Checking error-chain v0.8.1
Oct 27 09:40:34.364 INFO kablam!     Checking regex v0.2.1
Oct 27 09:40:35.704 INFO kablam!     Checking caps v0.0.1
Oct 27 09:40:39.411 INFO kablam!     Checking env_logger v0.4.2
Oct 27 09:40:40.811 INFO kablam!     Checking rubble v0.1.0 (/source)
Oct 27 09:40:42.531 INFO kablam! warning: unused import: `CLONE_NEWIPC`
Oct 27 09:40:42.531 INFO kablam!   --> src/main.rs:24:73
Oct 27 09:40:42.532 INFO kablam!    |
Oct 27 09:40:42.532 INFO kablam! 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Oct 27 09:40:42.532 INFO kablam!    |                                                                         ^^^^^^^^^^^^
Oct 27 09:40:42.535 INFO kablam!    |
Oct 27 09:40:42.535 INFO kablam! warning: unused import: `CLONE_NEWIPC`
Oct 27 09:40:42.535 INFO kablam!   --> src/main.rs:24:73
Oct 27 09:40:42.535 INFO kablam!    |
Oct 27 09:40:42.535 INFO kablam! 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Oct 27 09:40:42.535 INFO kablam!    |                                                                         ^^^^^^^^^^^^
Oct 27 09:40:42.535 INFO kablam!    |
Oct 27 09:40:42.535 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 27 09:40:42.535 INFO kablam! 
Oct 27 09:40:42.535 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 27 09:40:42.535 INFO kablam! 
Oct 27 09:40:42.669 INFO kablam! warning: unused variable: `real_gid`
Oct 27 09:40:42.669 INFO kablam!   --> src/main.rs:54:35
Oct 27 09:40:42.669 INFO kablam!    |
Oct 27 09:40:42.669 INFO kablam! 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Oct 27 09:40:42.669 INFO kablam!    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Oct 27 09:40:42.669 INFO kablam!    |
Oct 27 09:40:42.669 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 27 09:40:42.669 INFO kablam! 
Oct 27 09:40:42.669 INFO kablam! warning: unused variable: `overflow_uid`
Oct 27 09:40:42.669 INFO kablam!    --> src/main.rs:341:10
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 27 09:40:42.669 INFO kablam!     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Oct 27 09:40:42.669 INFO kablam! 
Oct 27 09:40:42.669 INFO kablam! warning: unused variable: `overflow_gid`
Oct 27 09:40:42.669 INFO kablam!    --> src/main.rs:341:24
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 27 09:40:42.669 INFO kablam!     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Oct 27 09:40:42.669 INFO kablam! 
Oct 27 09:40:42.669 INFO kablam! warning: variable `host_tty_dev` is assigned to, but never used
Oct 27 09:40:42.669 INFO kablam!    --> src/main.rs:343:13
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam! 343 |     let mut host_tty_dev: Option<String> = None;
Oct 27 09:40:42.669 INFO kablam!     |             ^^^^^^^^^^^^
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam!     = note: consider using `_host_tty_dev` instead
Oct 27 09:40:42.669 INFO kablam! 
Oct 27 09:40:42.669 INFO kablam! warning: value assigned to `host_tty_dev` is never read
Oct 27 09:40:42.669 INFO kablam!    --> src/main.rs:345:9
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam! 345 |         host_tty_dev = Some(unsafe {
Oct 27 09:40:42.669 INFO kablam!     |         ^^^^^^^^^^^^
Oct 27 09:40:42.669 INFO kablam!     |
Oct 27 09:40:42.669 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: unused variable: `opt_sandbox_uid`
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:421:9
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Oct 27 09:40:42.670 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: unused variable: `opt_sandbox_gid`
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:425:9
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Oct 27 09:40:42.670 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: unused variable: `proc_wd`
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:447:9
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 447 |     let proc_wd = WalkDir::new("/proc");
Oct 27 09:40:42.670 INFO kablam!     |         ^^^^^^^ help: consider using `_proc_wd` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: variable `event_fd` is assigned to, but never used
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:467:13
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 467 |     let mut event_fd: Option<i32> = None;
Oct 27 09:40:42.670 INFO kablam!     |             ^^^^^^^^
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam!     = note: consider using `_event_fd` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: value assigned to `event_fd` is never read
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:469:9
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Oct 27 09:40:42.670 INFO kablam!     |         ^^^^^^^^
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: unused variable: `e`
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:497:17
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Oct 27 09:40:42.670 INFO kablam!     |                 ^ help: consider using `_e` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.670 INFO kablam! warning: unused variable: `child_wait_fd`
Oct 27 09:40:42.670 INFO kablam!    --> src/main.rs:509:9
Oct 27 09:40:42.670 INFO kablam!     |
Oct 27 09:40:42.670 INFO kablam! 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Oct 27 09:40:42.670 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Oct 27 09:40:42.670 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: unused variable: `real_gid`
Oct 27 09:40:42.727 INFO kablam!   --> src/main.rs:54:35
Oct 27 09:40:42.727 INFO kablam!    |
Oct 27 09:40:42.727 INFO kablam! 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Oct 27 09:40:42.727 INFO kablam!    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Oct 27 09:40:42.727 INFO kablam!    |
Oct 27 09:40:42.727 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 27 09:40:42.727 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: unused variable: `overflow_uid`
Oct 27 09:40:42.727 INFO kablam!    --> src/main.rs:341:10
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 27 09:40:42.727 INFO kablam!     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Oct 27 09:40:42.727 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: unused variable: `overflow_gid`
Oct 27 09:40:42.727 INFO kablam!    --> src/main.rs:341:24
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Oct 27 09:40:42.727 INFO kablam!     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Oct 27 09:40:42.727 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: variable `host_tty_dev` is assigned to, but never used
Oct 27 09:40:42.727 INFO kablam!    --> src/main.rs:343:13
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam! 343 |     let mut host_tty_dev: Option<String> = None;
Oct 27 09:40:42.727 INFO kablam!     |             ^^^^^^^^^^^^
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam!     = note: consider using `_host_tty_dev` instead
Oct 27 09:40:42.727 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: value assigned to `host_tty_dev` is never read
Oct 27 09:40:42.727 INFO kablam!    --> src/main.rs:345:9
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam! 345 |         host_tty_dev = Some(unsafe {
Oct 27 09:40:42.727 INFO kablam!     |         ^^^^^^^^^^^^
Oct 27 09:40:42.727 INFO kablam!     |
Oct 27 09:40:42.727 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Oct 27 09:40:42.727 INFO kablam! 
Oct 27 09:40:42.727 INFO kablam! warning: unused variable: `opt_sandbox_uid`
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:421:9
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Oct 27 09:40:42.728 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: unused variable: `opt_sandbox_gid`
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:425:9
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Oct 27 09:40:42.728 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: unused variable: `proc_wd`
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:447:9
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 447 |     let proc_wd = WalkDir::new("/proc");
Oct 27 09:40:42.728 INFO kablam!     |         ^^^^^^^ help: consider using `_proc_wd` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: variable `event_fd` is assigned to, but never used
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:467:13
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 467 |     let mut event_fd: Option<i32> = None;
Oct 27 09:40:42.728 INFO kablam!     |             ^^^^^^^^
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam!     = note: consider using `_event_fd` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: value assigned to `event_fd` is never read
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:469:9
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Oct 27 09:40:42.728 INFO kablam!     |         ^^^^^^^^
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: unused variable: `e`
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:497:17
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Oct 27 09:40:42.728 INFO kablam!     |                 ^ help: consider using `_e` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.728 INFO kablam! warning: unused variable: `child_wait_fd`
Oct 27 09:40:42.728 INFO kablam!    --> src/main.rs:509:9
Oct 27 09:40:42.728 INFO kablam!     |
Oct 27 09:40:42.728 INFO kablam! 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Oct 27 09:40:42.728 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Oct 27 09:40:42.728 INFO kablam! 
Oct 27 09:40:42.787 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.47s
Oct 27 09:40:42.795 INFO kablam! su: No module specific data is present
Oct 27 09:40:43.085 INFO running `"docker" "rm" "-f" "ca5390f805ed1bd8a82e019b0471021fa8255577ed59be89041432da4566b0dd"`
Oct 27 09:40:43.199 INFO blam! ca5390f805ed1bd8a82e019b0471021fa8255577ed59be89041432da4566b0dd