[INFO] fetching crate rust-string-random 0.1.0... [INFO] testing rust-string-random-0.1.0 against 1.83.0 for beta-1.84.0-4 [INFO] extracting crate rust-string-random 0.1.0 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate rust-string-random 0.1.0 on toolchain 1.83.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rust-string-random 0.1.0 [INFO] finished tweaking crates.io crate rust-string-random 0.1.0 [INFO] tweaked toml for crates.io crate rust-string-random 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding rand v0.7.3 (available: v0.8.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ce0fd5cfbee0892a90daf1bd93326c5f72566dfc26d521eee58624cf5203c634 [INFO] running `Command { std: "docker" "start" "-a" "ce0fd5cfbee0892a90daf1bd93326c5f72566dfc26d521eee58624cf5203c634", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce0fd5cfbee0892a90daf1bd93326c5f72566dfc26d521eee58624cf5203c634", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce0fd5cfbee0892a90daf1bd93326c5f72566dfc26d521eee58624cf5203c634", kill_on_drop: false }` [INFO] [stdout] ce0fd5cfbee0892a90daf1bd93326c5f72566dfc26d521eee58624cf5203c634 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91a76aa9638ae499c4b5da1a7caa27f6cefa632e4f51bd5fcae682d36b315416 [INFO] running `Command { std: "docker" "start" "-a" "91a76aa9638ae499c4b5da1a7caa27f6cefa632e4f51bd5fcae682d36b315416", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.168 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling syn v2.0.90 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling zerocopy v0.7.35 [INFO] [stderr] Compiling ppv-lite86 v0.2.20 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rust-string-random v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.57s [INFO] running `Command { std: "docker" "inspect" "91a76aa9638ae499c4b5da1a7caa27f6cefa632e4f51bd5fcae682d36b315416", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91a76aa9638ae499c4b5da1a7caa27f6cefa632e4f51bd5fcae682d36b315416", kill_on_drop: false }` [INFO] [stdout] 91a76aa9638ae499c4b5da1a7caa27f6cefa632e4f51bd5fcae682d36b315416 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 478953cb809d97f85a9d8c4cc86cff3c80ee8c7e551d038b459a1c7e2e7daf2a [INFO] running `Command { std: "docker" "start" "-a" "478953cb809d97f85a9d8c4cc86cff3c80ee8c7e551d038b459a1c7e2e7daf2a", kill_on_drop: false }` [INFO] [stderr] Compiling rust-string-random v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `Command { std: "docker" "inspect" "478953cb809d97f85a9d8c4cc86cff3c80ee8c7e551d038b459a1c7e2e7daf2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "478953cb809d97f85a9d8c4cc86cff3c80ee8c7e551d038b459a1c7e2e7daf2a", kill_on_drop: false }` [INFO] [stdout] 478953cb809d97f85a9d8c4cc86cff3c80ee8c7e551d038b459a1c7e2e7daf2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 94352de2baa59de1d4e659d652db8f352f29ef17a1160da85951846d2752bc3b [INFO] running `Command { std: "docker" "start" "-a" "94352de2baa59de1d4e659d652db8f352f29ef17a1160da85951846d2752bc3b", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_string_random-780524d3e3fa1667) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::string_random ... 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] Doc-tests rust_string_random [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - random (line 14) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - random (line 14) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at src/lib.rs:52:27: [INFO] [stdout] attempt to subtract with overflow [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x576858da5aea - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x576858da5aea - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x576858da5aea - std::sys::backtrace::_print_fmt::hc4546b8364a537c6 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x576858da5aea - ::fmt::h5b6bd5631a6d1f6b [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x576858dc0d83 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x576858dc0d83 - core::fmt::write::h7550c97b06c86515 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21 [INFO] [stdout] 6: 0x576858da3893 - std::io::Write::write_fmt::h7b09c64fe0be9c84 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15 [INFO] [stdout] 7: 0x576858da5932 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x576858da68dc - std::panicking::default_hook::{{closure}}::he19d4c7230e07961 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x576858da6722 - std::panicking::default_hook::hf614597d3c67bbdb [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9 [INFO] [stdout] 10: 0x576858da6eb7 - std::panicking::rust_panic_with_hook::h8942133a8b252070 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13 [INFO] [stdout] 11: 0x576858da6d16 - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:667:13 [INFO] [stdout] 12: 0x576858da5fc9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 13: 0x576858da69dc - rust_begin_unwind [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5 [INFO] [stdout] 14: 0x576858d4d5c0 - core::panicking::panic_fmt::h0c3082644d1bf418 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14 [INFO] [stdout] 15: 0x576858d4dce7 - core::panicking::panic_const::panic_const_sub_overflow::h068bbf8ea6b4f121 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:181:21 [INFO] [stdout] 16: 0x576858d5078d - rust_string_random::random::hc43a21fa70f6de60 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:52:27 [INFO] [stdout] 17: 0x576858d4e255 - rust_out::main::_doctest_main_src_lib_rs_14_0::hd22cc7090985b3f7 [INFO] [stdout] 18: 0x576858d4e186 - rust_out::main::h86d391cc11b8a827 [INFO] [stdout] 19: 0x576858d4df63 - core::ops::function::FnOnce::call_once::hd1e0b33d350e8c2e [INFO] [stdout] 20: 0x576858d4df46 - std::sys::backtrace::__rust_begin_short_backtrace::hb7c4fd168269da08 [INFO] [stdout] 21: 0x576858d4df29 - std::rt::lang_start::{{closure}}::h7630186e3858a44d [INFO] [stdout] 22: 0x576858da1fce - core::ops::function::impls:: for &F>::call_once::hfdb85f4ee94732d3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13 [INFO] [stdout] 23: 0x576858da1fce - std::panicking::try::do_call::h6e577310f330cbef [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 24: 0x576858da1fce - std::panicking::try::ha588d438267d2645 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 25: 0x576858da1fce - std::panic::catch_unwind::h429fda1e025f26d9 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 26: 0x576858da1fce - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48 [INFO] [stdout] 27: 0x576858da1fce - std::panicking::try::do_call::hc0f6a675b7ae5a36 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x576858da1fce - std::panicking::try::h4c93b7ff0671f1ff [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x576858da1fce - std::panic::catch_unwind::hcc1e154961d16ce6 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x576858da1fce - std::rt::lang_start_internal::h1c66660c99c8424c [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20 [INFO] [stdout] 31: 0x576858d4df07 - std::rt::lang_start::hcdb31f4834f76b8c [INFO] [stdout] 32: 0x576858d4e365 - main [INFO] [stdout] 33: 0x75ca9c69cd90 - [INFO] [stdout] 34: 0x75ca9c69ce40 - __libc_start_main [INFO] [stdout] 35: 0x576858d4de15 - _start [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - random (line 14) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "94352de2baa59de1d4e659d652db8f352f29ef17a1160da85951846d2752bc3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94352de2baa59de1d4e659d652db8f352f29ef17a1160da85951846d2752bc3b", kill_on_drop: false }` [INFO] [stdout] 94352de2baa59de1d4e659d652db8f352f29ef17a1160da85951846d2752bc3b