Nov 01 10:03:08.789 INFO checking SpamapS/rubble against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 10:03:08.789 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 10:03:09.232 INFO blam! bb922790f886dd656158d22d4dd93f023c40e3d1e9da5d8c7034e59c28965685
Nov 01 10:03:09.234 INFO running `"docker" "start" "-a" "bb922790f886dd656158d22d4dd93f023c40e3d1e9da5d8c7034e59c28965685"`
Nov 01 10:03:10.552 INFO kablam! usermod: no changes
Nov 01 10:03:10.716 INFO kablam!     Checking enum_derive v0.1.7
Nov 01 10:03:10.716 INFO kablam!     Checking syscall v0.2.1
Nov 01 10:03:10.720 INFO kablam!     Checking isatty v0.1.3
Nov 01 10:03:10.720 INFO kablam!     Checking nix v0.8.0
Nov 01 10:03:10.720 INFO kablam!     Checking env_logger v0.4.2
Nov 01 10:03:12.096 INFO kablam!     Checking caps v0.0.1
Nov 01 10:03:16.432 INFO kablam!     Checking rubble v0.1.0 (/source)
Nov 01 10:03:18.503 INFO kablam! warning: unused import: `CLONE_NEWIPC`
Nov 01 10:03:18.503 INFO kablam!   --> src/main.rs:24:73
Nov 01 10:03:18.503 INFO kablam!    |
Nov 01 10:03:18.503 INFO kablam! 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Nov 01 10:03:18.503 INFO kablam!    |                                                                         ^^^^^^^^^^^^
Nov 01 10:03:18.503 INFO kablam!    |
Nov 01 10:03:18.503 INFO kablam!    = note: #[warn(unused_imports)] on by default
Nov 01 10:03:18.503 INFO kablam! 
Nov 01 10:03:18.580 INFO kablam! warning: unused import: `CLONE_NEWIPC`
Nov 01 10:03:18.580 INFO kablam!   --> src/main.rs:24:73
Nov 01 10:03:18.580 INFO kablam!    |
Nov 01 10:03:18.580 INFO kablam! 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Nov 01 10:03:18.580 INFO kablam!    |                                                                         ^^^^^^^^^^^^
Nov 01 10:03:18.580 INFO kablam!    |
Nov 01 10:03:18.580 INFO kablam!    = note: #[warn(unused_imports)] on by default
Nov 01 10:03:18.580 INFO kablam! 
Nov 01 10:03:18.640 INFO kablam! warning: unused variable: `real_gid`
Nov 01 10:03:18.640 INFO kablam!   --> src/main.rs:54:35
Nov 01 10:03:18.640 INFO kablam!    |
Nov 01 10:03:18.640 INFO kablam! 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Nov 01 10:03:18.641 INFO kablam!    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Nov 01 10:03:18.641 INFO kablam!    |
Nov 01 10:03:18.641 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `overflow_uid`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:341:10
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 01 10:03:18.641 INFO kablam!     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `overflow_gid`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:341:24
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 01 10:03:18.641 INFO kablam!     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: variable `host_tty_dev` is assigned to, but never used
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:343:13
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 343 |     let mut host_tty_dev: Option<String> = None;
Nov 01 10:03:18.641 INFO kablam!     |             ^^^^^^^^^^^^
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam!     = note: consider using `_host_tty_dev` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: value assigned to `host_tty_dev` is never read
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:345:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 345 |         host_tty_dev = Some(unsafe {
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^^^^^^
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `opt_sandbox_uid`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:421:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `opt_sandbox_gid`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:425:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `proc_wd`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:447:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 447 |     let proc_wd = WalkDir::new("/proc");
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^ help: consider using `_proc_wd` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: variable `event_fd` is assigned to, but never used
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:467:13
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 467 |     let mut event_fd: Option<i32> = None;
Nov 01 10:03:18.641 INFO kablam!     |             ^^^^^^^^
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam!     = note: consider using `_event_fd` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: value assigned to `event_fd` is never read
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:469:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^^
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `e`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:497:17
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Nov 01 10:03:18.641 INFO kablam!     |                 ^ help: consider using `_e` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.641 INFO kablam! warning: unused variable: `child_wait_fd`
Nov 01 10:03:18.641 INFO kablam!    --> src/main.rs:509:9
Nov 01 10:03:18.641 INFO kablam!     |
Nov 01 10:03:18.641 INFO kablam! 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Nov 01 10:03:18.641 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Nov 01 10:03:18.641 INFO kablam! 
Nov 01 10:03:18.713 INFO kablam! warning: unused variable: `real_gid`
Nov 01 10:03:18.713 INFO kablam!   --> src/main.rs:54:35
Nov 01 10:03:18.713 INFO kablam!    |
Nov 01 10:03:18.713 INFO kablam! 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Nov 01 10:03:18.713 INFO kablam!    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Nov 01 10:03:18.713 INFO kablam!    |
Nov 01 10:03:18.713 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 10:03:18.713 INFO kablam! 
Nov 01 10:03:18.713 INFO kablam! warning: unused variable: `overflow_uid`
Nov 01 10:03:18.713 INFO kablam!    --> src/main.rs:341:10
Nov 01 10:03:18.713 INFO kablam!     |
Nov 01 10:03:18.713 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 01 10:03:18.713 INFO kablam!     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Nov 01 10:03:18.713 INFO kablam! 
Nov 01 10:03:18.713 INFO kablam! warning: unused variable: `overflow_gid`
Nov 01 10:03:18.713 INFO kablam!    --> src/main.rs:341:24
Nov 01 10:03:18.713 INFO kablam!     |
Nov 01 10:03:18.713 INFO kablam! 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 01 10:03:18.713 INFO kablam!     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Nov 01 10:03:18.713 INFO kablam! 
Nov 01 10:03:18.713 INFO kablam! warning: variable `host_tty_dev` is assigned to, but never used
Nov 01 10:03:18.713 INFO kablam!    --> src/main.rs:343:13
Nov 01 10:03:18.713 INFO kablam!     |
Nov 01 10:03:18.713 INFO kablam! 343 |     let mut host_tty_dev: Option<String> = None;
Nov 01 10:03:18.713 INFO kablam!     |             ^^^^^^^^^^^^
Nov 01 10:03:18.713 INFO kablam!     |
Nov 01 10:03:18.713 INFO kablam!     = note: consider using `_host_tty_dev` instead
Nov 01 10:03:18.713 INFO kablam! 
Nov 01 10:03:18.713 INFO kablam! warning: value assigned to `host_tty_dev` is never read
Nov 01 10:03:18.713 INFO kablam!    --> src/main.rs:345:9
Nov 01 10:03:18.713 INFO kablam!     |
Nov 01 10:03:18.713 INFO kablam! 345 |         host_tty_dev = Some(unsafe {
Nov 01 10:03:18.713 INFO kablam!     |         ^^^^^^^^^^^^
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam!     = note: #[warn(unused_assignments)] on by default
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: unused variable: `opt_sandbox_uid`
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:421:9
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Nov 01 10:03:18.718 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: unused variable: `opt_sandbox_gid`
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:425:9
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Nov 01 10:03:18.718 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: unused variable: `proc_wd`
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:447:9
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 447 |     let proc_wd = WalkDir::new("/proc");
Nov 01 10:03:18.718 INFO kablam!     |         ^^^^^^^ help: consider using `_proc_wd` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: variable `event_fd` is assigned to, but never used
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:467:13
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 467 |     let mut event_fd: Option<i32> = None;
Nov 01 10:03:18.718 INFO kablam!     |             ^^^^^^^^
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam!     = note: consider using `_event_fd` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: value assigned to `event_fd` is never read
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:469:9
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Nov 01 10:03:18.718 INFO kablam!     |         ^^^^^^^^
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: unused variable: `e`
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:497:17
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Nov 01 10:03:18.718 INFO kablam!     |                 ^ help: consider using `_e` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.718 INFO kablam! warning: unused variable: `child_wait_fd`
Nov 01 10:03:18.718 INFO kablam!    --> src/main.rs:509:9
Nov 01 10:03:18.718 INFO kablam!     |
Nov 01 10:03:18.718 INFO kablam! 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Nov 01 10:03:18.718 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Nov 01 10:03:18.718 INFO kablam! 
Nov 01 10:03:18.812 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.23s
Nov 01 10:03:18.816 INFO kablam! su: No module specific data is present
Nov 01 10:03:19.368 INFO running `"docker" "rm" "-f" "bb922790f886dd656158d22d4dd93f023c40e3d1e9da5d8c7034e59c28965685"`
Nov 01 10:03:19.466 INFO blam! bb922790f886dd656158d22d4dd93f023c40e3d1e9da5d8c7034e59c28965685