[INFO] fetching crate xor_rand 0.1.2201... [INFO] testing xor_rand-0.1.2201 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate xor_rand 0.1.2201 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate xor_rand 0.1.2201 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate xor_rand 0.1.2201 [INFO] finished tweaking crates.io crate xor_rand 0.1.2201 [INFO] tweaked toml for crates.io crate xor_rand 0.1.2201 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] be0213fcc388f9eefaaaf6da777d59c69818dc6755b70516fc0c324ae389e4e8 [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" "be0213fcc388f9eefaaaf6da777d59c69818dc6755b70516fc0c324ae389e4e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be0213fcc388f9eefaaaf6da777d59c69818dc6755b70516fc0c324ae389e4e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be0213fcc388f9eefaaaf6da777d59c69818dc6755b70516fc0c324ae389e4e8", kill_on_drop: false }` [INFO] [stdout] be0213fcc388f9eefaaaf6da777d59c69818dc6755b70516fc0c324ae389e4e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b6a86fbf01d0af0049dab0513941f1371523a8aca2e891786a0e1a2fda8ab76d [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" "b6a86fbf01d0af0049dab0513941f1371523a8aca2e891786a0e1a2fda8ab76d", kill_on_drop: false }` [INFO] [stderr] Compiling xor_rand v0.1.2201 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "b6a86fbf01d0af0049dab0513941f1371523a8aca2e891786a0e1a2fda8ab76d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b6a86fbf01d0af0049dab0513941f1371523a8aca2e891786a0e1a2fda8ab76d", kill_on_drop: false }` [INFO] [stdout] b6a86fbf01d0af0049dab0513941f1371523a8aca2e891786a0e1a2fda8ab76d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 56ec7fd65a2c2b199221be61eb783c81c6f0a968f5b8c7e395fd8e5848fa0e31 [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" "56ec7fd65a2c2b199221be61eb783c81c6f0a968f5b8c7e395fd8e5848fa0e31", kill_on_drop: false }` [INFO] [stderr] Compiling xor_rand v0.1.2201 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `Command { std: "docker" "inspect" "56ec7fd65a2c2b199221be61eb783c81c6f0a968f5b8c7e395fd8e5848fa0e31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56ec7fd65a2c2b199221be61eb783c81c6f0a968f5b8c7e395fd8e5848fa0e31", kill_on_drop: false }` [INFO] [stdout] 56ec7fd65a2c2b199221be61eb783c81c6f0a968f5b8c7e395fd8e5848fa0e31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0d2fcc74e33e119407efb3eeb4e351102f931f9186ae65b62c5bd966c2385239 [INFO] running `Command { std: "docker" "start" "-a" "0d2fcc74e33e119407efb3eeb4e351102f931f9186ae65b62c5bd966c2385239", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/xor_rand-409d116549ad6eff) [INFO] [stdout] [INFO] [stderr] Doc-tests xor_rand [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 4 tests [INFO] [stdout] test src/lib.rs - XorRand::read (line 97) ... FAILED [INFO] [stdout] test src/lib.rs - XorRand::next_byte (line 22) ... ok [INFO] [stdout] test src/lib.rs - XorRand::next_bytes (line 66) ... ok [INFO] [stdout] test src/lib.rs - XorRand::next (line 126) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - XorRand::read (line 97) stdout ---- [INFO] [stdout] error[E0599]: no method named `read_exact` found for struct `XorRand` in the current scope [INFO] [stdout] --> src/lib.rs:101:10 [INFO] [stdout] | [INFO] [stdout] 7 | prng.read_exact(&mut random_nums).unwrap(); [INFO] [stdout] | ^^^^^^^^^^ method not found in `XorRand<16_usize>` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is in scope [INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it: [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Read; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - XorRand::next (line 126) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'attempt to add with overflow', /opt/rustwide/workdir/src/lib.rs:45:28 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55d5f0af9bac - std::backtrace_rs::backtrace::libunwind::trace::h51faa62df48810e4 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x55d5f0af9bac - std::backtrace_rs::backtrace::trace_unsynchronized::h91de4d8e16d607e4 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d5f0af9bac - std::sys_common::backtrace::_print_fmt::h71b0935f97e4322c [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55d5f0af9bac - ::fmt::h9a78218788c14e18 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55d5f0b144dc - core::fmt::write::h3381b3176fe2b3d3 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/core/src/fmt/mod.rs:1150:17 [INFO] [stdout] 5: 0x55d5f0af7ab5 - std::io::Write::write_fmt::h1d5220480c7a2437 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/io/mod.rs:1667:15 [INFO] [stdout] 6: 0x55d5f0afb2a0 - std::sys_common::backtrace::_print::h4b77abc4d907ed0e [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55d5f0afb2a0 - std::sys_common::backtrace::print::hb170c60b542377ad [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55d5f0afb2a0 - std::panicking::default_hook::{{closure}}::h12bbda9af8901ee3 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:210:50 [INFO] [stdout] 9: 0x55d5f0afae57 - std::panicking::default_hook::h8c6c66d3f3ba6768 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:227:9 [INFO] [stdout] 10: 0x55d5f0afb954 - std::panicking::rust_panic_with_hook::h36f2fa0bb09f4069 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:624:17 [INFO] [stdout] 11: 0x55d5f0afb402 - std::panicking::begin_panic_handler::{{closure}}::h9c42b65a42d06a7a [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x55d5f0afa074 - std::sys_common::backtrace::__rust_end_short_backtrace::hc791bddfe31e532c [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x55d5f0afb399 - rust_begin_unwind [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:517:5 [INFO] [stdout] 14: 0x55d5f0ae2f61 - core::panicking::panic_fmt::hf9de31d4acbce4db [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/core/src/panicking.rs:101:14 [INFO] [stdout] 15: 0x55d5f0ae2ead - core::panicking::panic::h8a6bc58a21c6c095 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/core/src/panicking.rs:50:5 [INFO] [stdout] 16: 0x55d5f0ae4a18 - xor_rand::XorRand<_>::next_byte::h8e5e6f77b3f241eb [INFO] [stdout] 17: 0x55d5f0ae46c9 - as core::iter::traits::iterator::Iterator>::next::hf94a08c7f25d2445 [INFO] [stdout] 18: 0x55d5f0ae37ae - as core::iter::traits::iterator::Iterator>::next::hb15fb372c26e786b [INFO] [stdout] 19: 0x55d5f0ae4d68 - rust_out::main::_doctest_main_src_lib_rs_126_0::h6dbebd7dfa4680b8 [INFO] [stdout] 20: 0x55d5f0ae4ca6 - rust_out::main::h61823b600df25383 [INFO] [stdout] 21: 0x55d5f0ae3bb3 - core::ops::function::FnOnce::call_once::h3d07824a44777914 [INFO] [stdout] 22: 0x55d5f0ae3909 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd0fdc54e9188a18d [INFO] [stdout] 23: 0x55d5f0ae3989 - std::rt::lang_start::{{closure}}::hec4f5193e4af3c47 [INFO] [stdout] 24: 0x55d5f0afbe5a - core::ops::function::impls:: for &F>::call_once::hc590b210ed55e22f [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 25: 0x55d5f0afbe5a - std::panicking::try::do_call::h5f0600b7a33ea1af [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:403:40 [INFO] [stdout] 26: 0x55d5f0afbe5a - std::panicking::try::he15826df0f376a33 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:367:19 [INFO] [stdout] 27: 0x55d5f0afbe5a - std::panic::catch_unwind::hd8af3a578b6b4c86 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panic.rs:129:14 [INFO] [stdout] 28: 0x55d5f0afbe5a - std::rt::lang_start_internal::{{closure}}::h301d1329324ae1f0 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/rt.rs:45:48 [INFO] [stdout] 29: 0x55d5f0afbe5a - std::panicking::try::do_call::h941e8fdb0bd03655 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:403:40 [INFO] [stdout] 30: 0x55d5f0afbe5a - std::panicking::try::ha20a77bf65530f63 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panicking.rs:367:19 [INFO] [stdout] 31: 0x55d5f0afbe5a - std::panic::catch_unwind::h33afc061cc69ef90 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/panic.rs:129:14 [INFO] [stdout] 32: 0x55d5f0afbe5a - std::rt::lang_start_internal::hc05c244593147106 [INFO] [stdout] at /rustc/e784c962ea252f0874a4305168077e7048cb39e9/library/std/src/rt.rs:45:20 [INFO] [stdout] 33: 0x55d5f0ae3961 - std::rt::lang_start::he85d58294892489a [INFO] [stdout] 34: 0x55d5f0ae5053 - main [INFO] [stdout] 35: 0x7f13cc8330b3 - __libc_start_main [INFO] [stdout] 36: 0x55d5f0ae36be - _start [INFO] [stdout] 37: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - XorRand::next (line 126) [INFO] [stdout] src/lib.rs - XorRand::read (line 97) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.25s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "0d2fcc74e33e119407efb3eeb4e351102f931f9186ae65b62c5bd966c2385239", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d2fcc74e33e119407efb3eeb4e351102f931f9186ae65b62c5bd966c2385239", kill_on_drop: false }` [INFO] [stdout] 0d2fcc74e33e119407efb3eeb4e351102f931f9186ae65b62c5bd966c2385239