Nov 28 11:01:20.254 INFO checking SpamapS/rubble against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 11:01:20.256 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 11:01:20.714 INFO [stdout] 8ce9d27e372bd51e140340d061de2d566ab0c06ce30a1b0123bdbb931f48d78c
Nov 28 11:01:20.717 INFO running `"docker" "start" "-a" "8ce9d27e372bd51e140340d061de2d566ab0c06ce30a1b0123bdbb931f48d78c"`
Nov 28 11:01:21.732 INFO [stderr] usermod: no changes
Nov 28 11:01:21.905 INFO [stderr]     Checking enum_derive v0.1.7
Nov 28 11:01:21.905 INFO [stderr]     Checking syscall v0.2.1
Nov 28 11:01:21.912 INFO [stderr]     Checking isatty v0.1.3
Nov 28 11:01:21.913 INFO [stderr]     Checking nix v0.8.0
Nov 28 11:01:21.913 INFO [stderr]     Checking thread_local v0.3.3
Nov 28 11:01:21.913 INFO [stderr]     Checking backtrace v0.3.0
Nov 28 11:01:23.279 INFO [stderr]     Checking regex v0.2.1
Nov 28 11:01:23.505 INFO [stderr]     Checking error-chain v0.8.1
Nov 28 11:01:24.498 INFO [stderr]     Checking caps v0.0.1
Nov 28 11:01:26.868 INFO [stderr]     Checking env_logger v0.4.2
Nov 28 11:01:28.314 INFO [stderr]     Checking rubble v0.1.0 (/source)
Nov 28 11:01:29.497 INFO [stderr] warning: unused import: `CLONE_NEWIPC`
Nov 28 11:01:29.497 INFO [stderr]   --> src/main.rs:24:73
Nov 28 11:01:29.497 INFO [stderr]    |
Nov 28 11:01:29.497 INFO [stderr] 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Nov 28 11:01:29.498 INFO [stderr]    |                                                                         ^^^^^^^^^^^^
Nov 28 11:01:29.498 INFO [stderr]    |
Nov 28 11:01:29.498 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 11:01:29.498 INFO [stderr] 
Nov 28 11:01:29.508 INFO [stderr] warning: unused import: `CLONE_NEWIPC`
Nov 28 11:01:29.508 INFO [stderr]   --> src/main.rs:24:73
Nov 28 11:01:29.509 INFO [stderr]    |
Nov 28 11:01:29.509 INFO [stderr] 24 |                 CLONE_NEWNS, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_NEWIPC, CLONE_NEWUTS,
Nov 28 11:01:29.509 INFO [stderr]    |                                                                         ^^^^^^^^^^^^
Nov 28 11:01:29.509 INFO [stderr]    |
Nov 28 11:01:29.509 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 11:01:29.510 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `real_gid`
Nov 28 11:01:29.618 INFO [stderr]   --> src/main.rs:54:35
Nov 28 11:01:29.618 INFO [stderr]    |
Nov 28 11:01:29.618 INFO [stderr] 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Nov 28 11:01:29.618 INFO [stderr]    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Nov 28 11:01:29.618 INFO [stderr]    |
Nov 28 11:01:29.618 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `overflow_uid`
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:341:10
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 28 11:01:29.618 INFO [stderr]     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `overflow_gid`
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:341:24
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 28 11:01:29.618 INFO [stderr]     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: variable `host_tty_dev` is assigned to, but never used
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:343:13
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 343 |     let mut host_tty_dev: Option<String> = None;
Nov 28 11:01:29.618 INFO [stderr]     |             ^^^^^^^^^^^^
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr]     = note: consider using `_host_tty_dev` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: value assigned to `host_tty_dev` is never read
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:345:9
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 345 |         host_tty_dev = Some(unsafe {
Nov 28 11:01:29.618 INFO [stderr]     |         ^^^^^^^^^^^^
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `opt_sandbox_uid`
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:421:9
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Nov 28 11:01:29.618 INFO [stderr]     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `opt_sandbox_gid`
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:425:9
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Nov 28 11:01:29.618 INFO [stderr]     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.618 INFO [stderr] warning: unused variable: `proc_wd`
Nov 28 11:01:29.618 INFO [stderr]    --> src/main.rs:447:9
Nov 28 11:01:29.618 INFO [stderr]     |
Nov 28 11:01:29.618 INFO [stderr] 447 |     let proc_wd = WalkDir::new("/proc");
Nov 28 11:01:29.618 INFO [stderr]     |         ^^^^^^^ help: consider using `_proc_wd` instead
Nov 28 11:01:29.618 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: variable `event_fd` is assigned to, but never used
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:467:13
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 467 |     let mut event_fd: Option<i32> = None;
Nov 28 11:01:29.627 INFO [stderr]     |             ^^^^^^^^
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr]     = note: consider using `_event_fd` instead
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: value assigned to `event_fd` is never read
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:469:9
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Nov 28 11:01:29.627 INFO [stderr]     |         ^^^^^^^^
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: unused variable: `e`
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:497:17
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Nov 28 11:01:29.627 INFO [stderr]     |                 ^ help: consider using `_e` instead
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: unused variable: `child_wait_fd`
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:509:9
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Nov 28 11:01:29.627 INFO [stderr]     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: unused variable: `real_gid`
Nov 28 11:01:29.627 INFO [stderr]   --> src/main.rs:54:35
Nov 28 11:01:29.627 INFO [stderr]    |
Nov 28 11:01:29.627 INFO [stderr] 54 | fn acquire_privs(real_uid: uid_t, real_gid: uid_t) -> bool {
Nov 28 11:01:29.627 INFO [stderr]    |                                   ^^^^^^^^ help: consider using `_real_gid` instead
Nov 28 11:01:29.627 INFO [stderr]    |
Nov 28 11:01:29.627 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: unused variable: `overflow_uid`
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:341:10
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 28 11:01:29.627 INFO [stderr]     |          ^^^^^^^^^^^^ help: consider using `_overflow_uid` instead
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.627 INFO [stderr] warning: unused variable: `overflow_gid`
Nov 28 11:01:29.627 INFO [stderr]    --> src/main.rs:341:24
Nov 28 11:01:29.627 INFO [stderr]     |
Nov 28 11:01:29.627 INFO [stderr] 341 |     let (overflow_uid, overflow_gid) = read_overflowids();
Nov 28 11:01:29.627 INFO [stderr]     |                        ^^^^^^^^^^^^ help: consider using `_overflow_gid` instead
Nov 28 11:01:29.627 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: variable `host_tty_dev` is assigned to, but never used
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:343:13
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 343 |     let mut host_tty_dev: Option<String> = None;
Nov 28 11:01:29.628 INFO [stderr]     |             ^^^^^^^^^^^^
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr]     = note: consider using `_host_tty_dev` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: value assigned to `host_tty_dev` is never read
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:345:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 345 |         host_tty_dev = Some(unsafe {
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^^^^^^
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: unused variable: `opt_sandbox_uid`
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:421:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 421 |     let opt_sandbox_uid = match popts.sandbox_uid {
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_uid` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: unused variable: `opt_sandbox_gid`
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:425:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 425 |     let opt_sandbox_gid = match popts.sandbox_gid {
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^^^^^^^^^ help: consider using `_opt_sandbox_gid` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: unused variable: `proc_wd`
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:447:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 447 |     let proc_wd = WalkDir::new("/proc");
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^ help: consider using `_proc_wd` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: variable `event_fd` is assigned to, but never used
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:467:13
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 467 |     let mut event_fd: Option<i32> = None;
Nov 28 11:01:29.628 INFO [stderr]     |             ^^^^^^^^
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr]     = note: consider using `_event_fd` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: value assigned to `event_fd` is never read
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:469:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 469 |         event_fd = match eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK) {
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^^
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: unused variable: `e`
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:497:17
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 497 |             Err(e) => panic!("stat on /proc/self/ns/cgroup failed"),
Nov 28 11:01:29.628 INFO [stderr]     |                 ^ help: consider using `_e` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.628 INFO [stderr] warning: unused variable: `child_wait_fd`
Nov 28 11:01:29.628 INFO [stderr]    --> src/main.rs:509:9
Nov 28 11:01:29.628 INFO [stderr]     |
Nov 28 11:01:29.628 INFO [stderr] 509 |     let child_wait_fd = match eventfd(0, EFD_CLOEXEC) {
Nov 28 11:01:29.628 INFO [stderr]     |         ^^^^^^^^^^^^^ help: consider using `_child_wait_fd` instead
Nov 28 11:01:29.628 INFO [stderr] 
Nov 28 11:01:29.704 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.94s
Nov 28 11:01:29.704 INFO [stderr] su: No module specific data is present
Nov 28 11:01:30.063 INFO running `"docker" "inspect" "8ce9d27e372bd51e140340d061de2d566ab0c06ce30a1b0123bdbb931f48d78c"`
Nov 28 11:01:30.230 INFO running `"docker" "rm" "-f" "8ce9d27e372bd51e140340d061de2d566ab0c06ce30a1b0123bdbb931f48d78c"`
Nov 28 11:01:30.536 INFO [stdout] 8ce9d27e372bd51e140340d061de2d566ab0c06ce30a1b0123bdbb931f48d78c