[INFO] fetching crate mnist-extractor 0.1.1...
[INFO] testing mnist-extractor-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mnist-extractor 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mnist-extractor 0.1.1
[INFO] finished tweaking crates.io crate mnist-extractor 0.1.1
[INFO] tweaked toml for crates.io crate mnist-extractor 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mnist-extractor 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 199 packages to latest compatible versions
[INFO] [stderr]       Adding libflate v0.1.27 (available: v2.2.0)
[INFO] [stderr]       Adding ndarray v0.13.1 (available: v0.17.1)
[INFO] [stderr]       Adding reqwest v0.9.24 (available: v0.12.24)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bcb5c500205bdfe1159da5552c6abb85a437a9a56be445e5bf1d13fa2749e64
[INFO] running `Command { std: "docker" "start" "-a" "4bcb5c500205bdfe1159da5552c6abb85a437a9a56be445e5bf1d13fa2749e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bcb5c500205bdfe1159da5552c6abb85a437a9a56be445e5bf1d13fa2749e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bcb5c500205bdfe1159da5552c6abb85a437a9a56be445e5bf1d13fa2749e64", kill_on_drop: false }`
[INFO] [stdout] 4bcb5c500205bdfe1159da5552c6abb85a437a9a56be445e5bf1d13fa2749e64
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf0461090f1a661c86b7363f5a732c702baeb0d0e1aac6f653c1c0c56fff92e
[INFO] running `Command { std: "docker" "start" "-a" "ecf0461090f1a661c86b7363f5a732c702baeb0d0e1aac6f653c1c0c56fff92e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling native-tls v0.2.14
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[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling reqwest v0.9.24
[INFO] [stderr]    Compiling mnist-extractor v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.63s
[INFO] running `Command { std: "docker" "inspect" "ecf0461090f1a661c86b7363f5a732c702baeb0d0e1aac6f653c1c0c56fff92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf0461090f1a661c86b7363f5a732c702baeb0d0e1aac6f653c1c0c56fff92e", kill_on_drop: false }`
[INFO] [stdout] ecf0461090f1a661c86b7363f5a732c702baeb0d0e1aac6f653c1c0c56fff92e
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eb212539c49fa14c38cc6a6a5014ce053d1807af4ab75437ded612fb1beb396
[INFO] running `Command { std: "docker" "start" "-a" "7eb212539c49fa14c38cc6a6a5014ce053d1807af4ab75437ded612fb1beb396", kill_on_drop: false }`
[INFO] [stderr]    Compiling mnist-extractor v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "7eb212539c49fa14c38cc6a6a5014ce053d1807af4ab75437ded612fb1beb396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb212539c49fa14c38cc6a6a5014ce053d1807af4ab75437ded612fb1beb396", kill_on_drop: false }`
[INFO] [stdout] 7eb212539c49fa14c38cc6a6a5014ce053d1807af4ab75437ded612fb1beb396
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2c6559140f9f3920315472664b67cccc13ee8c8d0eb80710698f6e014dc982c
[INFO] running `Command { std: "docker" "start" "-a" "b2c6559140f9f3920315472664b67cccc13ee8c8d0eb80710698f6e014dc982c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mnist_extractor-67a297e3a36a5e9a)
[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] [stderr]    Doc-tests mnist_extractor
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - clean_everything (line 67) ... ok
[INFO] [stdout] test src/lib.rs - clean_all_extracted (line 51) ... ok
[INFO] [stdout] test src/lib.rs - get_all (line 26) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - get_all (line 26) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] DOWNLOADING t10k-labels-idx1-ubyte
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (110) panicked at src/lib.rs:117:47:
[INFO] [stdout] request failed: Error(Hyper(Error(Connect, Custom { kind: Uncategorized, error: "failed to lookup address information: Temporary failure in name resolution" })), "http://yann.lecun.com/exdb/mnist/t10k-labels-idx1-ubyte.gz")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58c87d240e12 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58c87d240e12 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58c87d240e12 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58c87d240e12 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58c87d25280f - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58c87d25280f - core::fmt::write::hecf68a131630c74d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58c87d21a551 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58c87d21a551 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58c87d221842 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58c87d22473f - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58c87d224599 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x58c87d224e75 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x58c87d224c5a - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x58c87d221989 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x58c87d20e4fd - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x58c87d258970 - core::panicking::panic_fmt::h5138da2ef87be35b
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x58c87d257b96 - core::result::unwrap_failed::h5d9b16b0b732a2ac
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/result.rs:1855:5
[INFO] [stdout]   17:     0x58c87ceb4703 - core::result::Result<T,E>::expect::h6bf3e5fadb6ef06d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/result.rs:1178:23
[INFO] [stdout]   18:     0x58c87ceacd44 - mnist_extractor::download::h3e6beb2cfd1b339d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:117:47
[INFO] [stdout]   19:     0x58c87ceabc50 - mnist_extractor::maybe_download::h126c85e02fd001cd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:103:13
[INFO] [stdout]   20:     0x58c87ceabac0 - mnist_extractor::maybe_read::heda57b0eb1496b24
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:84:19
[INFO] [stdout]   21:     0x58c87ceac67a - mnist_extractor::get_all::h0ca64d5e412339f6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:42:39
[INFO] [stdout]   22:     0x58c87ceaab78 - rust_out::main::_doctest_main_src_lib_rs_26_0::hc9f47d5ee8cc0471
[INFO] [stdout]   23:     0x58c87ceaab56 - rust_out::main::hcbdc0960c876f2af
[INFO] [stdout]   24:     0x58c87ceaab23 - core::ops::function::FnOnce::call_once::hfb4119cacd246208
[INFO] [stdout]   25:     0x58c87ceaaac6 - std::sys::backtrace::__rust_begin_short_backtrace::h410c329a888fe2f7
[INFO] [stdout]   26:     0x58c87ceaaaa9 - std::rt::lang_start::{{closure}}::h39fc2126d871a896
[INFO] [stdout]   27:     0x58c87d21bea0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   28:     0x58c87d21bea0 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58c87d21bea0 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58c87d21bea0 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58c87d21bea0 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stdout]   32:     0x58c87d21bea0 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   33:     0x58c87d21bea0 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   34:     0x58c87d21bea0 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x58c87d21bea0 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stdout]   36:     0x58c87ceaaa91 - std::rt::lang_start::h866de1957bb2b812
[INFO] [stdout]   37:     0x58c87ceab085 - main
[INFO] [stdout]   38:     0x7d212708a1ca - <unknown>
[INFO] [stdout]   39:     0x7d212708a28b - __libc_start_main
[INFO] [stdout]   40:     0x58c87ceaa975 - _start
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - get_all (line 26)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.18s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b2c6559140f9f3920315472664b67cccc13ee8c8d0eb80710698f6e014dc982c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c6559140f9f3920315472664b67cccc13ee8c8d0eb80710698f6e014dc982c", kill_on_drop: false }`
[INFO] [stdout] b2c6559140f9f3920315472664b67cccc13ee8c8d0eb80710698f6e014dc982c
