[INFO] fetching crate base64-stream 4.0.0...
[INFO] testing base64-stream-4.0.0 against 1.90.0 for beta-1.91-2
[INFO] extracting crate base64-stream 4.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate base64-stream 4.0.0
[INFO] finished tweaking crates.io crate base64-stream 4.0.0
[INFO] tweaked toml for crates.io crate base64-stream 4.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate base64-stream 4.0.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding educe v0.5.11 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-ordinalize v4.3.0
[INFO] [stderr]   Downloaded enum-ordinalize-derive v4.3.1
[INFO] [stderr]   Downloaded generic-array v1.2.0
[INFO] [stderr]   Downloaded educe v0.5.11
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c90c054f88ab2d980a02d27f8e8b88160a095e9868a7163d21a34a4cdf7d031
[INFO] running `Command { std: "docker" "start" "-a" "3c90c054f88ab2d980a02d27f8e8b88160a095e9868a7163d21a34a4cdf7d031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c90c054f88ab2d980a02d27f8e8b88160a095e9868a7163d21a34a4cdf7d031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c90c054f88ab2d980a02d27f8e8b88160a095e9868a7163d21a34a4cdf7d031", kill_on_drop: false }`
[INFO] [stdout] 3c90c054f88ab2d980a02d27f8e8b88160a095e9868a7163d21a34a4cdf7d031
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61283a2478336fcba63bb51dd840270b0b1aebb62430b609ec6ea217730c8ab0
[INFO] running `Command { std: "docker" "start" "-a" "61283a2478336fcba63bb51dd840270b0b1aebb62430b609ec6ea217730c8ab0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling generic-array v1.2.0
[INFO] [stderr]    Compiling enum-ordinalize-derive v4.3.1
[INFO] [stderr]    Compiling enum-ordinalize v4.3.0
[INFO] [stderr]    Compiling educe v0.5.11
[INFO] [stderr]    Compiling base64-stream v4.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "61283a2478336fcba63bb51dd840270b0b1aebb62430b609ec6ea217730c8ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61283a2478336fcba63bb51dd840270b0b1aebb62430b609ec6ea217730c8ab0", kill_on_drop: false }`
[INFO] [stdout] 61283a2478336fcba63bb51dd840270b0b1aebb62430b609ec6ea217730c8ab0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3adadfc862bd4b3142afb8df0089e4a0a425a9ac5db3ffecaac3bf0e2fe4c7e7
[INFO] running `Command { std: "docker" "start" "-a" "3adadfc862bd4b3142afb8df0089e4a0a425a9ac5db3ffecaac3bf0e2fe4c7e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64-stream v4.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/from_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_reader.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/to_base64_writer.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "3adadfc862bd4b3142afb8df0089e4a0a425a9ac5db3ffecaac3bf0e2fe4c7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3adadfc862bd4b3142afb8df0089e4a0a425a9ac5db3ffecaac3bf0e2fe4c7e7", kill_on_drop: false }`
[INFO] [stdout] 3adadfc862bd4b3142afb8df0089e4a0a425a9ac5db3ffecaac3bf0e2fe4c7e7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71a52cfbd88e655c30d936371f2a30230fe9d39c7cb1ab6b4a76d56d27595267
[INFO] running `Command { std: "docker" "start" "-a" "71a52cfbd88e655c30d936371f2a30230fe9d39c7cb1ab6b4a76d56d27595267", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/from_base64_reader.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stderr]   |                  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/from_base64_reader.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/from_base64_writer.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/to_base64_reader.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stderr]   |                  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/to_base64_reader.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::{copy, copy_nonoverlapping},
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stderr]  --> src/to_base64_writer.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 |     intrinsics::copy_nonoverlapping,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `base64-stream` (lib) generated 6 warnings
[INFO] [stderr] warning: `base64-stream` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/base64_stream-bd981b4df5b955eb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests base64_stream
[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 5 tests
[INFO] [stdout] test src/lib.rs - (line 78) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 109) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 78) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:18:51:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5cf8edba0862 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5cf8edba0862 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5cf8edba0862 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5cf8edba0862 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5cf8edbbc203 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5cf8edbbc203 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5cf8edb9e3e3 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5cf8edb9e3e3 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5cf8edba06b2 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5cf8edba1743 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5cf8edba1525 - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stdout]   11:     0x5cf8edba2015 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
[INFO] [stdout]   12:     0x5cf8edba1eaa - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   13:     0x5cf8edba0d59 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x5cf8edba1b3d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   15:     0x5cf8edbbb4d0 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x5cf8edbbb866 - core::result::unwrap_failed::h95bc3f5a607b2c95
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1765:5
[INFO] [stdout]   17:     0x5cf8edb77a01 - rust_out::main::_doctest_main_src_lib_rs_78_0::h06e03c0cb936f2b1
[INFO] [stdout]   18:     0x5cf8edb77846 - rust_out::main::h2d10ba762d3f8adf
[INFO] [stdout]   19:     0x5cf8edb75723 - core::ops::function::FnOnce::call_once::h89333dd4ac8e03fc
[INFO] [stdout]   20:     0x5cf8edb75456 - std::sys::backtrace::__rust_begin_short_backtrace::h8a10de1e92516da1
[INFO] [stdout]   21:     0x5cf8edb75389 - std::rt::lang_start::{{closure}}::h0af3a8cb06b34c3e
[INFO] [stdout]   22:     0x5cf8edb9b800 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   23:     0x5cf8edb9b800 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   24:     0x5cf8edb9b800 - std::panicking::catch_unwind::h50591d85bf847c7c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   25:     0x5cf8edb9b800 - std::panic::catch_unwind::h2487b4c4f2ae22c6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x5cf8edb9b800 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x5cf8edb9b800 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x5cf8edb9b800 - std::panicking::catch_unwind::hf9a822ea043fb0d6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x5cf8edb9b800 - std::panic::catch_unwind::h5b3cac802237ed89
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5cf8edb9b800 - std::rt::lang_start_internal::h34f9328d113fd60a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x5cf8edb75371 - std::rt::lang_start::h8f736fe0a226e45f
[INFO] [stdout]   32:     0x5cf8edb77e75 - main
[INFO] [stdout]   33:     0x7d4716d451ca - <unknown>
[INFO] [stdout]   34:     0x7d4716d4528b - __libc_start_main
[INFO] [stdout]   35:     0x5cf8edb739e5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 29) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:18:48:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d6128a72552 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5d6128a72552 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5d6128a72552 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5d6128a72552 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5d6128a8df93 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5d6128a8df93 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5d6128a700d3 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5d6128a700d3 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5d6128a723a2 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5d6128a73433 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5d6128a73215 - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stdout]   11:     0x5d6128a73d05 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
[INFO] [stdout]   12:     0x5d6128a73b9a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   13:     0x5d6128a72a49 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x5d6128a7382d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   15:     0x5d6128a8d230 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x5d6128a8d5f6 - core::result::unwrap_failed::h95bc3f5a607b2c95
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1765:5
[INFO] [stdout]   17:     0x5d6128a4e0b1 - rust_out::main::_doctest_main_src_lib_rs_29_0::hfd73b56a9aed8cda
[INFO] [stdout]   18:     0x5d6128a4def6 - rust_out::main::h2d10ba762d3f8adf
[INFO] [stdout]   19:     0x5d6128a4c1d3 - core::ops::function::FnOnce::call_once::h89333dd4ac8e03fc
[INFO] [stdout]   20:     0x5d6128a4bf36 - std::sys::backtrace::__rust_begin_short_backtrace::h8a10de1e92516da1
[INFO] [stdout]   21:     0x5d6128a4be69 - std::rt::lang_start::{{closure}}::h0af3a8cb06b34c3e
[INFO] [stdout]   22:     0x5d6128a6d570 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   23:     0x5d6128a6d570 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   24:     0x5d6128a6d570 - std::panicking::catch_unwind::h50591d85bf847c7c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   25:     0x5d6128a6d570 - std::panic::catch_unwind::h2487b4c4f2ae22c6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x5d6128a6d570 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x5d6128a6d570 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x5d6128a6d570 - std::panicking::catch_unwind::hf9a822ea043fb0d6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x5d6128a6d570 - std::panic::catch_unwind::h5b3cac802237ed89
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5d6128a6d570 - std::rt::lang_start_internal::h34f9328d113fd60a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x5d6128a4be51 - std::rt::lang_start::h8f736fe0a226e45f
[INFO] [stdout]   32:     0x5d6128a4e525 - main
[INFO] [stdout]   33:     0x7ff65cfd61ca - <unknown>
[INFO] [stdout]   34:     0x7ff65cfd628b - __libc_start_main
[INFO] [stdout]   35:     0x5d6128a4a475 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 29)
[INFO] [stdout]     src/lib.rs - (line 78)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.69s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "71a52cfbd88e655c30d936371f2a30230fe9d39c7cb1ab6b4a76d56d27595267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a52cfbd88e655c30d936371f2a30230fe9d39c7cb1ab6b4a76d56d27595267", kill_on_drop: false }`
[INFO] [stdout] 71a52cfbd88e655c30d936371f2a30230fe9d39c7cb1ab6b4a76d56d27595267
