[INFO] fetching crate qubit-function 0.18.1...
[INFO] testing qubit-function-0.18.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate qubit-function 0.18.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate qubit-function 0.18.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate qubit-function 0.18.1
[INFO] tweaked toml for crates.io crate qubit-function 0.18.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qubit-function 0.18.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qubit-function 0.18.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946
[INFO] running `Command { std: "docker" "start" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling qubit-function v0.18.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling qubit-function v0.18.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 7.15s
[INFO] running `Command { std: "docker" "inspect" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/qubit_function-0bdfdc7a70b25f98)
[INFO] [stderr]      Running tests/arc_auto_trait_contract_tests.rs (/opt/rustwide/target/release/deps/arc_auto_trait_contract_tests-52d55171bf2fa69f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_all_arc_wrapper_types_are_send_and_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/callback_metadata_contract_tests.rs (/opt/rustwide/target/release/deps/callback_metadata_contract_tests-652bed22f9c750c1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_callback_metadata_contract_is_observable_through_box_function ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test all_example_files_are_listed_in_manifest ... ok
[INFO] [stderr]      Running tests/callback_wrapper_contract_tests.rs (/opt/rustwide/target/release/deps/callback_wrapper_contract_tests-0ddcb9c7e1b8ca26)
[INFO] [stderr]      Running tests/example_manifest_tests.rs (/opt/rustwide/target/release/deps/example_manifest_tests-00bf5d0f3a25c73c)
[INFO] [stdout] test all_manifest_examples_point_to_existing_files ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests.rs (/opt/rustwide/target/release/deps/feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests-ec06f5f286429dd1)
[INFO] [stdout] test test_stored_callback_wrappers_satisfy_unused_must_use ... FAILED
[INFO] [stdout] test test_discarded_callback_wrappers_trigger_unused_must_use ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_stored_callback_wrappers_satisfy_unused_must_use stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_stored_callback_wrappers_satisfy_unused_must_use' (478) panicked at tests/feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests.rs:186:5:
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] stdout:
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] info: syncing channel updates for 1.94.0-x86_64-unknown-linux-gnu
[INFO] [stdout] error: could not create temp file /opt/rustwide/rustup-home/tmp/pv084207l3x67uzg_file: Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5e249fdbdeb1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5e249fdd25ca - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x5e249fdc27bc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5e249fd98d36 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5e249fdb5d19 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5e249fd51140 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x5e249fdb5ed2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5e249fd98de2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5e249fd91a49 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5e249fd999dd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5e249fdd2cfc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5e249fd42742 - <feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests[2e1b7af32db85e81]::test_stored_callback_wrappers_satisfy_unused_must_use::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   12:     0x5e249fd4442b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   13:     0x5e249fd51a95 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   14:     0x5e249fd4b354 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   15:     0x5e249fd54bf2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   16:     0x5e249fdbd599 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   17:     0x7a3612ba8dfa - <unknown>
[INFO] [stdout]   18:     0x7a3612c3c3d4 - clone
[INFO] [stdout]   19:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test_discarded_callback_wrappers_trigger_unused_must_use stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_discarded_callback_wrappers_trigger_unused_must_use' (477) panicked at tests/feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests.rs:127:5:
[INFO] [stdout] expected diagnostic containing "callback wrappers do nothing unless stored or invoked"
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] stdout:
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] info: syncing channel updates for 1.94.0-x86_64-unknown-linux-gnu
[INFO] [stdout] error: could not create temp file /opt/rustwide/rustup-home/tmp/8n8yynw8k65a041p_file: Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5e249fdbdeb1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5e249fdd25ca - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x5e249fdc27bc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5e249fd98d36 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5e249fdb5d19 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5e249fd51140 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x5e249fdb5ed2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5e249fd98de2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5e249fd91a49 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5e249fd999dd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5e249fdd2cfc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5e249fd42d2f - <feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests[2e1b7af32db85e81]::test_discarded_callback_wrappers_trigger_unused_must_use::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   12:     0x5e249fd4442b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   13:     0x5e249fd51a95 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   14:     0x5e249fd4b354 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   15:     0x5e249fd54bf2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   16:     0x5e249fdbd599 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   17:     0x7a3612ba8dfa - <unknown>
[INFO] [stdout]   18:     0x7a3612c3c3d4 - clone
[INFO] [stdout]   19:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_discarded_callback_wrappers_trigger_unused_must_use
[INFO] [stdout]     test_stored_callback_wrappers_satisfy_unused_must_use
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test feature_contract_discarded_callback_wrappers_trigger_unused_must_use_tests`
[INFO] running `Command { std: "docker" "inspect" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946", kill_on_drop: false }`
[INFO] [stdout] 07b3982b7ee038467d6fd94174651a1e729ad6cdf39b948fac24f9dd6092f946
