[INFO] crate rust-string-random 0.1.0 is already in cache [INFO] testing rust-string-random-0.1.0 against 1.45.2 for beta-1.46-1 [INFO] extracting crate rust-string-random 0.1.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate rust-string-random 0.1.0 on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c3f51dbafa2d1423619056110959753d227e17040abb9de390fe1829cc594066 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c3f51dbafa2d1423619056110959753d227e17040abb9de390fe1829cc594066", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c3f51dbafa2d1423619056110959753d227e17040abb9de390fe1829cc594066", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3f51dbafa2d1423619056110959753d227e17040abb9de390fe1829cc594066", kill_on_drop: false }` [INFO] [stdout] c3f51dbafa2d1423619056110959753d227e17040abb9de390fe1829cc594066 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a55598b4dd21303f35c0353b4c043f3e7f79f512b4fcf8382a1e82962660685 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7a55598b4dd21303f35c0353b4c043f3e7f79f512b4fcf8382a1e82962660685", kill_on_drop: false }` [INFO] [stderr] Compiling rust-string-random v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "7a55598b4dd21303f35c0353b4c043f3e7f79f512b4fcf8382a1e82962660685", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a55598b4dd21303f35c0353b4c043f3e7f79f512b4fcf8382a1e82962660685", kill_on_drop: false }` [INFO] [stdout] 7a55598b4dd21303f35c0353b4c043f3e7f79f512b4fcf8382a1e82962660685 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c1759fa0a8cc04c901c826d46236b85f0955b40913d0921ecac16a4f949bd05 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4c1759fa0a8cc04c901c826d46236b85f0955b40913d0921ecac16a4f949bd05", kill_on_drop: false }` [INFO] [stderr] Compiling rust-string-random v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `Command { std: "docker" "inspect" "4c1759fa0a8cc04c901c826d46236b85f0955b40913d0921ecac16a4f949bd05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c1759fa0a8cc04c901c826d46236b85f0955b40913d0921ecac16a4f949bd05", kill_on_drop: false }` [INFO] [stdout] 4c1759fa0a8cc04c901c826d46236b85f0955b40913d0921ecac16a4f949bd05 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d23834116fb0eccd519a2b8ed532916b33831e7119b06d340c5ed43bbd477352 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d23834116fb0eccd519a2b8ed532916b33831e7119b06d340c5ed43bbd477352", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_string_random-2409c12abad07be0 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::string_random ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::string_random stdout ---- [INFO] [stdout] thread 'tests::string_random' panicked at 'attempt to subtract with overflow', src/lib.rs:52:27 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x56426328bd85 - backtrace::backtrace::libunwind::trace::ha215bbf14e328799 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x56426328bd85 - backtrace::backtrace::trace_unsynchronized::h3384b099b135857a [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x56426328bd85 - std::sys_common::backtrace::_print_fmt::hfec93740f7294682 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x56426328bd85 - ::fmt::h5fe20777f4174074 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x5642632b3fdc - core::fmt::write::he14c3177144df275 [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x5642631f54f5 - std::io::Write::write_fmt::ha866504c9998fe5e [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/io/mod.rs:1537 [INFO] [stdout] 6: 0x564263286151 - std::io::impls::>::write_fmt::h8f0a2af895559593 [INFO] [stdout] at src/libstd/io/impls.rs:176 [INFO] [stdout] 7: 0x56426328e5b0 - std::sys_common::backtrace::_print::h9cfa4c87526ba064 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 8: 0x56426328e5b0 - std::sys_common::backtrace::print::h94936584848b3272 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x56426328e5b0 - std::panicking::default_hook::{{closure}}::h733b20cc9b496e46 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 10: 0x56426328e2aa - std::panicking::default_hook::h556d8cff6c12a651 [INFO] [stdout] at src/libstd/panicking.rs:215 [INFO] [stdout] 11: 0x56426328ebe7 - std::panicking::rust_panic_with_hook::ha0c7ca5b39baa9d5 [INFO] [stdout] at src/libstd/panicking.rs:486 [INFO] [stdout] 12: 0x56426328e7eb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:388 [INFO] [stdout] 13: 0x5642632b2971 - core::panicking::panic_fmt::h106d7128cbbc7cd2 [INFO] [stdout] at src/libcore/panicking.rs:101 [INFO] [stdout] 14: 0x5642632b28bd - core::panicking::panic::hfe03c118d2519816 [INFO] [stdout] at src/libcore/panicking.rs:56 [INFO] [stdout] 15: 0x5642631f0a82 - rust_string_random::random::h1ef2a6963eaa77aa [INFO] [stdout] at src/lib.rs:52 [INFO] [stdout] 16: 0x5642631f211b - rust_string_random::tests::string_random::hb12ab5d10e94e5f0 [INFO] [stdout] at src/lib.rs:85 [INFO] [stdout] 17: 0x5642631f202a - rust_string_random::tests::string_random::{{closure}}::hc2f8370b4a347802 [INFO] [stdout] at src/lib.rs:78 [INFO] [stdout] 18: 0x5642631f17ce - core::ops::function::FnOnce::call_once::h7e53d196ecbe3558 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libcore/ops/function.rs:232 [INFO] [stdout] 19: 0x56426321c6e2 - as core::ops::function::FnOnce>::call_once::h1efcc6525b6aa145 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/liballoc/boxed.rs:1076 [INFO] [stdout] 20: 0x56426321c6e2 - as core::ops::function::FnOnce<()>>::call_once::hafd7ae2f3c23f399 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panic.rs:318 [INFO] [stdout] 21: 0x56426321c6e2 - std::panicking::try::do_call::h83baf26f5fc8b0a5 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:297 [INFO] [stdout] 22: 0x56426321c6e2 - std::panicking::try::h8d28a678b90bb6ac [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:274 [INFO] [stdout] 23: 0x56426321c6e2 - std::panic::catch_unwind::h20734e8710644f59 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x56426321c6e2 - test::run_test_in_process::h2c1fb2dd0c9013bb [INFO] [stdout] at src/libtest/lib.rs:541 [INFO] [stdout] 25: 0x56426321c6e2 - test::run_test::run_test_inner::{{closure}}::h7c58b7aefdb9adf3 [INFO] [stdout] at src/libtest/lib.rs:450 [INFO] [stdout] 26: 0x5642631f49b6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h498f21fd16bdff05 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/sys_common/backtrace.rs:130 [INFO] [stdout] 27: 0x5642631f9cf5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hb35336a0a0430e6d [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/thread/mod.rs:475 [INFO] [stdout] 28: 0x5642631f9cf5 - as core::ops::function::FnOnce<()>>::call_once::h8569a86268e08ad1 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panic.rs:318 [INFO] [stdout] 29: 0x5642631f9cf5 - std::panicking::try::do_call::hcc5472a0f1ff31ac [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:297 [INFO] [stdout] 30: 0x5642631f9cf5 - std::panicking::try::h774b0c4fd770945c [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:274 [INFO] [stdout] 31: 0x5642631f9cf5 - std::panic::catch_unwind::hfaf7c6beb53320e7 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panic.rs:394 [INFO] [stdout] 32: 0x5642631f9cf5 - std::thread::Builder::spawn_unchecked::{{closure}}::h481343a824704446 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/thread/mod.rs:474 [INFO] [stdout] 33: 0x5642631f9cf5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9dcbc7fc2c4c6c48 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libcore/ops/function.rs:232 [INFO] [stdout] 34: 0x564263294eea - as core::ops::function::FnOnce>::call_once::hf311c88f1fadb9b8 [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/liballoc/boxed.rs:1076 [INFO] [stdout] 35: 0x564263294eea - as core::ops::function::FnOnce>::call_once::h8cfb7235b81393ef [INFO] [stdout] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/liballoc/boxed.rs:1076 [INFO] [stdout] 36: 0x564263294eea - std::sys::unix::thread::Thread::new::thread_start::hf745c8cf29a89648 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:87 [INFO] [stdout] 37: 0x7f74a7a66609 - start_thread [INFO] [stdout] 38: 0x7f74a7cf1103 - __clone [INFO] [stdout] 39: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::string_random [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "d23834116fb0eccd519a2b8ed532916b33831e7119b06d340c5ed43bbd477352", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d23834116fb0eccd519a2b8ed532916b33831e7119b06d340c5ed43bbd477352", kill_on_drop: false }` [INFO] [stdout] d23834116fb0eccd519a2b8ed532916b33831e7119b06d340c5ed43bbd477352