[INFO] updating cached repository https://github.com/j-fro/team_allocator [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 14355ccfc7da566cb4d442ab70bc1937d6b9d2d0 [INFO] testing j-fro/team_allocator against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Fteam_allocator" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/j-fro/team_allocator on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/j-fro/team_allocator [INFO] finished tweaking git repo https://github.com/j-fro/team_allocator [INFO] tweaked toml for git repo https://github.com/j-fro/team_allocator written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/j-fro/team_allocator already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 32e03916b1565fa029bcc1a9558ebe886d53ae3aa8f42e351b75365bde5bff8d [INFO] running `"docker" "start" "-a" "32e03916b1565fa029bcc1a9558ebe886d53ae3aa8f42e351b75365bde5bff8d"` [INFO] [stderr] Compiling team_randomizer v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `group_max` [INFO] [stderr] --> src/lib.rs:2:49 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn allocate_teams<'a>(names: &'a Vec<&str>, group_max: usize) -> Vec>> { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_group_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.79s [INFO] running `"docker" "inspect" "32e03916b1565fa029bcc1a9558ebe886d53ae3aa8f42e351b75365bde5bff8d"` [INFO] running `"docker" "rm" "-f" "32e03916b1565fa029bcc1a9558ebe886d53ae3aa8f42e351b75365bde5bff8d"` [INFO] [stdout] 32e03916b1565fa029bcc1a9558ebe886d53ae3aa8f42e351b75365bde5bff8d [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] ae31250d6842ac7bce16d68563f51c9203c18385c7444a260d5847472869cf9c [INFO] running `"docker" "start" "-a" "ae31250d6842ac7bce16d68563f51c9203c18385c7444a260d5847472869cf9c"` [INFO] [stderr] Compiling team_randomizer v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `group_max` [INFO] [stderr] --> src/lib.rs:2:49 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn allocate_teams<'a>(names: &'a Vec<&str>, group_max: usize) -> Vec>> { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_group_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `"docker" "inspect" "ae31250d6842ac7bce16d68563f51c9203c18385c7444a260d5847472869cf9c"` [INFO] running `"docker" "rm" "-f" "ae31250d6842ac7bce16d68563f51c9203c18385c7444a260d5847472869cf9c"` [INFO] [stdout] ae31250d6842ac7bce16d68563f51c9203c18385c7444a260d5847472869cf9c [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] 5254a6efdbbcb80de1c8951319405f33ff5e975018cd196bdfa0cd7a51e46c98 [INFO] running `"docker" "start" "-a" "5254a6efdbbcb80de1c8951319405f33ff5e975018cd196bdfa0cd7a51e46c98"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/team_randomizer-35fb24bda0923747 [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test::one_iteration_max_one_one_member ... ok [INFO] [stdout] test test::one_iteration_max_one_two_members ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::one_iteration_max_one_two_members stdout ---- [INFO] [stdout] thread 'test::one_iteration_max_one_two_members' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `[[["Alice"], ["Bob"]]]`, [INFO] [stdout] right: `[[["Alice", "Bob"]]]`', src/lib.rs:23:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55aacd098a9b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55aacd098a9b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55aacd098a9b - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55aacd098a9b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55aacd098a9b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55aacd09870c - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x55aacd09920d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55aacd098d92 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55aacd098cdf - std::panicking::begin_panic_fmt::hc33ce01c7f7cd52d [INFO] [stdout] at src/libstd/panicking.rs:339 [INFO] [stdout] 9: 0x55aacd04ed46 - team_randomizer::test::one_iteration_max_one_two_members::he673d9ab2ffd91a4 [INFO] [stdout] at src/lib.rs:23 [INFO] [stdout] 10: 0x55aacd04e99a - team_randomizer::test::one_iteration_max_one_two_members::{{closure}}::hd3fb0d8498374306 [INFO] [stdout] at src/lib.rs:22 [INFO] [stdout] 11: 0x55aacd04f38e - core::ops::function::FnOnce::call_once::heea7b5553ded59ab [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 12: 0x55aacd05b7ff - as core::ops::function::FnOnce>::call_once::hac0fbe2754f8bd24 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 13: 0x55aacd09b95a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 14: 0x55aacd075dee - std::panicking::try::h9d6938917cc05e3f [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 15: 0x55aacd075dee - std::panic::catch_unwind::h5be70fd1d69515b0 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 16: 0x55aacd075dee - test::run_test::run_test_inner::{{closure}}::h056f206eafd8ff6e [INFO] [stdout] at src/libtest/lib.rs:1408 [INFO] [stdout] 17: 0x55aacd051225 - std::sys_common::backtrace::__rust_begin_short_backtrace::h859abbc742a34b19 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x55aacd055365 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf8192ec938c43694 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x55aacd055365 - as core::ops::function::FnOnce<()>>::call_once::hae7b2431555cb4db [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315 [INFO] [stdout] 20: 0x55aacd055365 - std::panicking::try::do_call::h6da7ecd0783259d7 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296 [INFO] [stdout] 21: 0x55aacd09b95a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 22: 0x55aacd055942 - std::panicking::try::h3c1c35414c2c78f1 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 23: 0x55aacd055942 - std::panic::catch_unwind::ha5cfb2018fda983e [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55aacd055942 - std::thread::Builder::spawn_unchecked::{{closure}}::hc7620e41f0938c09 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x55aacd055942 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1b3b20eeb6ea6ddd [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 26: 0x55aacd08e7df - as core::ops::function::FnOnce>::call_once::h2877b2aefb0fd627 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 27: 0x55aacd09b090 - as core::ops::function::FnOnce>::call_once::h13f473dbcdaa0fef [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 28: 0x55aacd09b090 - std::sys_common::thread::start_thread::h562a7c4953cb1d31 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x55aacd09b090 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7f8f927346db - start_thread [INFO] [stdout] 31: 0x7f8f9224588f - __clone [INFO] [stdout] 32: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::one_iteration_max_one_two_members [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `"docker" "inspect" "5254a6efdbbcb80de1c8951319405f33ff5e975018cd196bdfa0cd7a51e46c98"` [INFO] running `"docker" "rm" "-f" "5254a6efdbbcb80de1c8951319405f33ff5e975018cd196bdfa0cd7a51e46c98"` [INFO] [stdout] 5254a6efdbbcb80de1c8951319405f33ff5e975018cd196bdfa0cd7a51e46c98