[INFO] crate redox_users 0.2.0 is already in cache
[INFO] extracting crate redox_users 0.2.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/redox_users/0.2.0
[INFO] extracting crate redox_users 0.2.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/redox_users/0.2.0
[INFO] validating manifest of redox_users-0.2.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of redox_users-0.2.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing redox_users-0.2.0
[INFO] finished frobbing redox_users-0.2.0
[INFO] frobbed toml for redox_users-0.2.0 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/redox_users/0.2.0/Cargo.toml
[INFO] started frobbing redox_users-0.2.0
[INFO] finished frobbing redox_users-0.2.0
[INFO] frobbed toml for redox_users-0.2.0 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/redox_users/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing redox_users-0.2.0 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/redox_users/0.2.0:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 0f11dd27b7b27b4e4b2efa2f555515b2903cdb02a06605518048291b94525793
[INFO] running `"docker" "start" "-a" "0f11dd27b7b27b4e4b2efa2f555515b2903cdb02a06605518048291b94525793"`
[INFO] [stderr]    Compiling redox_syscall v0.1.51
[INFO] [stderr]    Compiling argon2rs v0.2.5
[INFO] [stderr]    Compiling redox_users v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `"docker" "inspect" "0f11dd27b7b27b4e4b2efa2f555515b2903cdb02a06605518048291b94525793"`
[INFO] running `"docker" "rm" "-f" "0f11dd27b7b27b4e4b2efa2f555515b2903cdb02a06605518048291b94525793"`
[INFO] [stdout] 0f11dd27b7b27b4e4b2efa2f555515b2903cdb02a06605518048291b94525793
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/redox_users/0.2.0:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] d6a532c83e1bc237fa288352ccaf936ebe43144d9a2aa0c0cbb9ebaef02cc738
[INFO] running `"docker" "start" "-a" "d6a532c83e1bc237fa288352ccaf936ebe43144d9a2aa0c0cbb9ebaef02cc738"`
[INFO] [stderr]    Compiling redox_users v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `"docker" "inspect" "d6a532c83e1bc237fa288352ccaf936ebe43144d9a2aa0c0cbb9ebaef02cc738"`
[INFO] running `"docker" "rm" "-f" "d6a532c83e1bc237fa288352ccaf936ebe43144d9a2aa0c0cbb9ebaef02cc738"`
[INFO] [stdout] d6a532c83e1bc237fa288352ccaf936ebe43144d9a2aa0c0cbb9ebaef02cc738
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/redox_users/0.2.0:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] d426bd1547d7ff50fddbf7e34eedda0db020e339aab0c89e9e424b060910edfa
[INFO] running `"docker" "start" "-a" "d426bd1547d7ff50fddbf7e34eedda0db020e339aab0c89e9e424b060910edfa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/redox_users-5459eabf83fc84d7
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::get_group ... ok
[INFO] [stdout] test test::get_user ... ok
[INFO] [stdout] test test::get_unused_ids ... ok
[INFO] [stdout] test test::wrong_attempt_is_password_unset ... ok
[INFO] [stdout] test test::wrong_attempt_is_password_blank ... ok
[INFO] [stdout] test test::wrong_attempt_unset_password ... ok
[INFO] [stdout] test test::wrong_attempt_set_password ... ok
[INFO] [stdout] test test::wrong_attempt_verify_password ... ok
[INFO] [stdout] test test::manip_user ... FAILED
[INFO] [stdout] test test::manip_group ... FAILED
[INFO] [stdout] test test::attempt_user_api ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::manip_user stdout ----
[INFO] [stdout] Reading file: /opt/crater/workdir/tests/passwd
[INFO] [stdout] Reading file: /opt/crater/workdir/tests/shadow
[INFO] [stdout] Reading file: /opt/crater/workdir/tests/passwd
[INFO] [stdout] thread 'test::manip_user' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0: _RNkMs0_NtNqCs2S7MSzVe1il_7failure9backtrace8internalNtB5_17InternalBacktrace3new (0x5603faf599b2)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stdout]    1: _RNkMNqCs2S7MSzVe1il_7failure9backtraceNaB2_9Backtrace3new (0x5603faf58e0d)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stdout]    2: _RNpXNyNgCs2S7MSzVe1il_7failure5error10error_implNcB2_9ErrorImplINcNyCsfOXHOjakNhA_4core7convert4FromNqNgNxCs93O65jcFPR3_3std2io5error5ErrorE4fromCscGuVp2RFeyg_11redox_users (0x5603faf05435)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stdout]    3: _RNpXNgCs2S7MSzVe1il_7failure5errorNqB2_5ErrorINcNyCsfOXHOjakNhA_4core7convert4FromNqNgNxCs93O65jcFPR3_3std2io5error5ErrorE4fromCscGuVp2RFeyg_11redox_users (0x5603faf0203e)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stdout]    4: _RNoCscGuVp2RFeyg_11redox_users17write_locked_file (0x5603faf07205)
[INFO] [stdout]              at src/lib.rs:151
[INFO] [stdout]    5: _RNkMs4_CscGuVp2RFeyg_11redox_usersNlB5_8AllUsers4save (0x5603faf0cda9)
[INFO] [stdout]              at src/lib.rs:758
[INFO] [stdout]    6: _RNrNaCscGuVp2RFeyg_11redox_users4tests_10manip_user (0x5603faefc4d0)
[INFO] [stdout]              at src/lib.rs:1080
[INFO] [stdout]    7: _RNCNrNaCscGuVp2RFeyg_11redox_users4test10manip_user0B5_ (0x5603faefc3c9)
[INFO] [stdout]              at src/lib.rs:1072
[INFO] [stdout]    8: _RNrYNCNrNaCscGuVp2RFeyg_11redox_users4test10manip_user0INuNcNrCsfOXHOjakNhA_4core3ops8function6FnOnceuE9call_onceB8_ (0x5603faf1c39d)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]    9: {{closure}} (0x5603faf2836e)
[INFO] [stdout]              at src/libtest/lib.rs:1474
[INFO] [stdout]       call_once<closure,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]       call_box<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   10: __rust_maybe_catch_panic (0x5603fb0340c9)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   11: try<(),std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>> (0x5603faf42857)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]       catch_unwind<std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]       {{closure}}
[INFO] [stdout]              at src/libtest/lib.rs:1429
[INFO] [stdout]   12: _RINhNqNkCs93O65jcFPR3_3std10sys_common9backtrace28__rust_begin_short_backtraceNCNnNrCsk8kyjH54eJk_4test8run_test14run_test_inner0uEB1k_ (0x5603faf1dc04)
[INFO] [stdout]   13: {{closure}}<closure,()> (0x5603faf1d724)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:469
[INFO] [stdout]       call_once<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:309
[INFO] [stdout]       do_call<std::panic::AssertUnwindSafe<closure>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:297
[INFO] [stdout]   14: __rust_maybe_catch_panic (0x5603fb0340c9)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   15: try<(),std::panic::AssertUnwindSafe<closure>> (0x5603faf280ac)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]       catch_unwind<std::panic::AssertUnwindSafe<closure>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]       {{closure}}<closure,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:468
[INFO] [stdout]       call_box<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   16: call_once<(),()> (0x5603fb03387d)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:744
[INFO] [stdout]       start_thread
[INFO] [stdout]              at src/libstd/sys_common/thread.rs:14
[INFO] [stdout]       thread_start
[INFO] [stdout]              at src/libstd/sys/unix/thread.rs:81
[INFO] [stdout]   17: start_thread (0x7f1bc6f19493)
[INFO] [stdout]   18: __clone (0x7f1bc6a44ace)
[INFO] [stdout]   19: <unknown> (0x0)', src/libcore/result.rs:997:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5603fb031b53 - std[698b411d1b74fcff]::sys::unix::backtrace::tracing::imp::unwind_backtrace
[INFO] [stdout]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stdout]    1:     0x5603fb02d84b - std[698b411d1b74fcff]::sys_common::backtrace::_print
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:70
[INFO] [stdout]    2:     0x5603fb0307d6 - std[698b411d1b74fcff]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:58
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    3:     0x5603fb0304d7 - std[698b411d1b74fcff]::panicking::default_hook
[INFO] [stdout]                                at src/libstd/panicking.rs:209
[INFO] [stdout]    4:     0x5603fb030ee0 - std[698b411d1b74fcff]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at src/libstd/panicking.rs:478
[INFO] [stdout]    5:     0x5603fb030a61 - std[698b411d1b74fcff]::panicking::continue_panic_fmt
[INFO] [stdout]                                at src/libstd/panicking.rs:385
[INFO] [stdout]    6:     0x5603fb030945 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:312
[INFO] [stdout]    7:     0x5603fb046e1c - core[b849d6d0cd70c3a8]::panicking::panic_fmt
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]    8:     0x5603faefeed4 - core[b849d6d0cd70c3a8]::result::unwrap_failed::<failure[2176aa52ea4768b7]::error::Error>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/macros.rs:16
[INFO] [stdout]    9:     0x5603faf0055f - <core[b849d6d0cd70c3a8]::result::Result<(), failure[2176aa52ea4768b7]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/result.rs:798
[INFO] [stdout]   10:     0x5603faefc4f7 - redox_users[93c1654ecc8f9b0e]::test::manip_user
[INFO] [stdout]                                at src/lib.rs:1080
[INFO] [stdout]   11:     0x5603faefc3c9 - redox_users[93c1654ecc8f9b0e]::test::manip_user::{closure#0}
[INFO] [stdout]                                at src/lib.rs:1072
[INFO] [stdout]   12:     0x5603faf1c39d - <redox_users[93c1654ecc8f9b0e]::test::manip_user::{closure#0} as core[b849d6d0cd70c3a8]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]   13:     0x5603faf2836e - <test[ea847f4bd1b1afc4]::run_test::{closure#3} as alloc[f4750af829db9b76]::boxed::FnBox<()>>::call_box
[INFO] [stdout]                                at src/libtest/lib.rs:1474
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   14:     0x5603fb0340c9 - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   15:     0x5603faf42857 - test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]                                at src/libtest/lib.rs:1429
[INFO] [stdout]   16:     0x5603faf1dc04 - std[698b411d1b74fcff]::sys_common::backtrace::__rust_begin_short_backtrace::<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/sys_common/backtrace.rs:135
[INFO] [stdout]   17:     0x5603faf1d724 - std[698b411d1b74fcff]::panicking::try::do_call::<std[698b411d1b74fcff]::panic::AssertUnwindSafe<<std[698b411d1b74fcff]::thread::Builder>::spawn_unchecked<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:469
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:309
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:297
[INFO] [stdout]   18:     0x5603fb0340c9 - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   19:     0x5603faf280ac - <<std[698b411d1b74fcff]::thread::Builder>::spawn_unchecked<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>::{closure#0} as alloc[f4750af829db9b76]::boxed::FnBox<()>>::call_box
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:468
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   20:     0x5603fb03387d - <std[698b411d1b74fcff]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:744
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:14
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:81
[INFO] [stdout]   21:     0x7f1bc6f19493 - start_thread
[INFO] [stdout]   22:     0x7f1bc6a44ace - __clone
[INFO] [stdout]   23:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test::manip_group stdout ----
[INFO] [stdout] Reading file: /opt/crater/workdir/tests/group
[INFO] [stdout] Reading file: /opt/crater/workdir/tests/group
[INFO] [stdout] thread 'test::manip_group' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0: _RNkMs0_NtNqCs2S7MSzVe1il_7failure9backtrace8internalNtB5_17InternalBacktrace3new (0x5603faf599b2)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stdout]    1: _RNkMNqCs2S7MSzVe1il_7failure9backtraceNaB2_9Backtrace3new (0x5603faf58e0d)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stdout]    2: _RNpXNyNgCs2S7MSzVe1il_7failure5error10error_implNcB2_9ErrorImplINcNyCsfOXHOjakNhA_4core7convert4FromNqNgNxCs93O65jcFPR3_3std2io5error5ErrorE4fromCscGuVp2RFeyg_11redox_users (0x5603faf05435)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stdout]    3: _RNpXNgCs2S7MSzVe1il_7failure5errorNqB2_5ErrorINcNyCsfOXHOjakNhA_4core7convert4FromNqNgNxCs93O65jcFPR3_3std2io5error5ErrorE4fromCscGuVp2RFeyg_11redox_users (0x5603faf0203e)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stdout]    4: _RNoCscGuVp2RFeyg_11redox_users17write_locked_file (0x5603faf07205)
[INFO] [stdout]              at src/lib.rs:151
[INFO] [stdout]    5: _RNkMs5_CscGuVp2RFeyg_11redox_usersNzB5_9AllGroups4save (0x5603faf0e543)
[INFO] [stdout]              at src/lib.rs:940
[INFO] [stdout]    6: _RNhNaCscGuVp2RFeyg_11redox_users4tests_11manip_group (0x5603faefddcb)
[INFO] [stdout]              at src/lib.rs:1159
[INFO] [stdout]    7: _RNCNhNaCscGuVp2RFeyg_11redox_users4test11manip_group0B5_ (0x5603faefdcf9)
[INFO] [stdout]              at src/lib.rs:1153
[INFO] [stdout]    8: _RNrYNCNhNaCscGuVp2RFeyg_11redox_users4test11manip_group0INuNcNrCsfOXHOjakNhA_4core3ops8function6FnOnceuE9call_onceB8_ (0x5603faf1c1dd)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]    9: {{closure}} (0x5603faf2836e)
[INFO] [stdout]              at src/libtest/lib.rs:1474
[INFO] [stdout]       call_once<closure,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]       call_box<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   10: __rust_maybe_catch_panic (0x5603fb0340c9)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   11: try<(),std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>> (0x5603faf42857)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]       catch_unwind<std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]       {{closure}}
[INFO] [stdout]              at src/libtest/lib.rs:1429
[INFO] [stdout]   12: _RINhNqNkCs93O65jcFPR3_3std10sys_common9backtrace28__rust_begin_short_backtraceNCNnNrCsk8kyjH54eJk_4test8run_test14run_test_inner0uEB1k_ (0x5603faf1dc04)
[INFO] [stdout]   13: {{closure}}<closure,()> (0x5603faf1d724)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:469
[INFO] [stdout]       call_once<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:309
[INFO] [stdout]       do_call<std::panic::AssertUnwindSafe<closure>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:297
[INFO] [stdout]   14: __rust_maybe_catch_panic (0x5603fb0340c9)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   15: try<(),std::panic::AssertUnwindSafe<closure>> (0x5603faf280ac)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]       catch_unwind<std::panic::AssertUnwindSafe<closure>,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]       {{closure}}<closure,()>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:468
[INFO] [stdout]       call_box<(),closure>
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   16: call_once<(),()> (0x5603fb03387d)
[INFO] [stdout]              at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:744
[INFO] [stdout]       start_thread
[INFO] [stdout]              at src/libstd/sys_common/thread.rs:14
[INFO] [stdout]       thread_start
[INFO] [stdout]              at src/libstd/sys/unix/thread.rs:81
[INFO] [stdout]   17: start_thread (0x7f1bc6f19493)
[INFO] [stdout]   18: __clone (0x7f1bc6a44ace)
[INFO] [stdout]   19: <unknown> (0x0)', src/libcore/result.rs:997:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5603fb031b53 - std[698b411d1b74fcff]::sys::unix::backtrace::tracing::imp::unwind_backtrace
[INFO] [stdout]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stdout]    1:     0x5603fb02d84b - std[698b411d1b74fcff]::sys_common::backtrace::_print
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:70
[INFO] [stdout]    2:     0x5603fb0307d6 - std[698b411d1b74fcff]::panicking::default_hook::{closure#1}
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:58
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    3:     0x5603fb0304d7 - std[698b411d1b74fcff]::panicking::default_hook
[INFO] [stdout]                                at src/libstd/panicking.rs:209
[INFO] [stdout]    4:     0x5603fb030ee0 - std[698b411d1b74fcff]::panicking::rust_panic_with_hook
[INFO] [stdout]                                at src/libstd/panicking.rs:478
[INFO] [stdout]    5:     0x5603fb030a61 - std[698b411d1b74fcff]::panicking::continue_panic_fmt
[INFO] [stdout]                                at src/libstd/panicking.rs:385
[INFO] [stdout]    6:     0x5603fb030945 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:312
[INFO] [stdout]    7:     0x5603fb046e1c - core[b849d6d0cd70c3a8]::panicking::panic_fmt
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]    8:     0x5603faefeed4 - core[b849d6d0cd70c3a8]::result::unwrap_failed::<failure[2176aa52ea4768b7]::error::Error>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/macros.rs:16
[INFO] [stdout]    9:     0x5603faf0055f - <core[b849d6d0cd70c3a8]::result::Result<(), failure[2176aa52ea4768b7]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/result.rs:798
[INFO] [stdout]   10:     0x5603faefddf2 - redox_users[93c1654ecc8f9b0e]::test::manip_group
[INFO] [stdout]                                at src/lib.rs:1159
[INFO] [stdout]   11:     0x5603faefdcf9 - redox_users[93c1654ecc8f9b0e]::test::manip_group::{closure#0}
[INFO] [stdout]                                at src/lib.rs:1153
[INFO] [stdout]   12:     0x5603faf1c1dd - <redox_users[93c1654ecc8f9b0e]::test::manip_group::{closure#0} as core[b849d6d0cd70c3a8]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]   13:     0x5603faf2836e - <test[ea847f4bd1b1afc4]::run_test::{closure#3} as alloc[f4750af829db9b76]::boxed::FnBox<()>>::call_box
[INFO] [stdout]                                at src/libtest/lib.rs:1474
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libcore/ops/function.rs:231
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   14:     0x5603fb0340c9 - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   15:     0x5603faf42857 - test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]                                at src/libtest/lib.rs:1429
[INFO] [stdout]   16:     0x5603faf1dc04 - std[698b411d1b74fcff]::sys_common::backtrace::__rust_begin_short_backtrace::<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/sys_common/backtrace.rs:135
[INFO] [stdout]   17:     0x5603faf1d724 - std[698b411d1b74fcff]::panicking::try::do_call::<std[698b411d1b74fcff]::panic::AssertUnwindSafe<<std[698b411d1b74fcff]::thread::Builder>::spawn_unchecked<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>::{closure#0}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:469
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:309
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:297
[INFO] [stdout]   18:     0x5603fb0340c9 - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stdout]   19:     0x5603faf280ac - <<std[698b411d1b74fcff]::thread::Builder>::spawn_unchecked<test[ea847f4bd1b1afc4]::run_test::run_test_inner::{closure#0}, ()>::{closure#0} as alloc[f4750af829db9b76]::boxed::FnBox<()>>::call_box
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panicking.rs:276
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/panic.rs:388
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/libstd/thread/mod.rs:468
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:734
[INFO] [stdout]   20:     0x5603fb03387d - <std[698b411d1b74fcff]::sys::unix::thread::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/7fea0229842e79db1159ea58ad9a653b288efee9/src/liballoc/boxed.rs:744
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:14
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:81
[INFO] [stdout]   21:     0x7f1bc6f19493 - start_thread
[INFO] [stdout]   22:     0x7f1bc6a44ace - __clone
[INFO] [stdout]   23:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::manip_group
[INFO] [stdout]     test::manip_user
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `"docker" "inspect" "d426bd1547d7ff50fddbf7e34eedda0db020e339aab0c89e9e424b060910edfa"`
[INFO] running `"docker" "rm" "-f" "d426bd1547d7ff50fddbf7e34eedda0db020e339aab0c89e9e424b060910edfa"`
[INFO] [stdout] d426bd1547d7ff50fddbf7e34eedda0db020e339aab0c89e9e424b060910edfa