[INFO] fetching crate mdx 0.0.4...
[INFO] checking mdx-0.0.4 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate mdx 0.0.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate mdx 0.0.4 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdx 0.0.4
[INFO] finished tweaking crates.io crate mdx 0.0.4
[INFO] tweaked toml for crates.io crate mdx 0.0.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate mdx 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded datatest v0.6.3
[INFO] [stderr]   Downloaded indent_write v2.0.0
[INFO] [stderr]   Downloaded joinery v2.0.0
[INFO] [stderr]   Downloaded cascade v1.0.0
[INFO] [stderr]   Downloaded datatest-derive v0.6.3
[INFO] [stderr]   Downloaded nom-supreme v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b83c4bb96ab52724144c85f2cf908bf66aad36bef055f657b2cb9cecb9ea69d0
[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" "b83c4bb96ab52724144c85f2cf908bf66aad36bef055f657b2cb9cecb9ea69d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b83c4bb96ab52724144c85f2cf908bf66aad36bef055f657b2cb9cecb9ea69d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83c4bb96ab52724144c85f2cf908bf66aad36bef055f657b2cb9cecb9ea69d0", kill_on_drop: false }`
[INFO] [stdout] b83c4bb96ab52724144c85f2cf908bf66aad36bef055f657b2cb9cecb9ea69d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dde109b396b0d354cdf7fb447cc09aab028845f8865aa7d64ab7a466fc4e2ec
[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" "2dde109b396b0d354cdf7fb447cc09aab028845f8865aa7d64ab7a466fc4e2ec", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking arrayvec v0.5.1
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[INFO] [stderr]     Checking gimli v0.23.0
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[INFO] [stderr]     Checking adler v0.2.3
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[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking clap v2.33.3
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[INFO] [stderr]     Checking nom-supreme v0.4.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling datatest-derive v0.6.3
[INFO] [stderr]     Checking tracing v0.1.22
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[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking color-eyre v0.5.10
[INFO] [stderr]     Checking mdx v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Parser`, `anychar`, `branch::alt`, `combinator::value`, `multi::fold_many_m_n`, `space0`
[INFO] [stdout]  --> src/ast/paragraphs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     branch::alt,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 3 |     bytes::complete::*,
[INFO] [stdout] 4 |     character::complete::{anychar, space0},
[INFO] [stdout]   |                           ^^^^^^^  ^^^^^^
[INFO] [stdout] 5 |     combinator::value,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     multi::fold_many_m_n,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     IResult, Parser,
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `parser_ext::ParserExt`, `tag::complete::tag`
[INFO] [stdout]  --> src/ast/paragraphs.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nom_supreme::{error::ErrorTree, parser_ext::ParserExt, tag::complete::tag};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |         .intersperse("\n\n".to_string())
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: unused imports: `Err::Error`, `error::ErrorKind`
[INFO] [stdout]   --> src/ast/headings.rs:50:15
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use nom::{error::ErrorKind, Err::Error};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parser`, `anychar`, `branch::alt`, `combinator::value`, `multi::fold_many_m_n`, `space0`
[INFO] [stdout]  --> src/ast/paragraphs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     branch::alt,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 3 |     bytes::complete::*,
[INFO] [stdout] 4 |     character::complete::{anychar, space0},
[INFO] [stdout]   |                           ^^^^^^^  ^^^^^^
[INFO] [stdout] 5 |     combinator::value,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     multi::fold_many_m_n,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     IResult, Parser,
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `parser_ext::ParserExt`, `tag::complete::tag`
[INFO] [stdout]  --> src/ast/paragraphs.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use nom_supreme::{error::ErrorTree, parser_ext::ParserExt, tag::complete::tag};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Err::Error`, `error::ErrorKind`
[INFO] [stdout]   --> src/ast/paragraphs.rs:50:15
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use nom::{error::ErrorKind, Err::Error};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Err::Error`, `error::ErrorKind`
[INFO] [stdout]   --> src/ast/thematic_breaks.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use nom::{error::ErrorKind, Err::Error};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BaseErrorKind`, `ErrorTree`
[INFO] [stdout]  --> tests/integration_test.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use nom_supreme::error::{BaseErrorKind, ErrorTree};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |         .intersperse("\n\n".to_string())
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mdx::*`
[INFO] [stdout]  --> tests/commonmark.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mdx::*;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `markdown`
[INFO] [stdout]   --> tests/commonmark.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     markdown: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `html`
[INFO] [stdout]   --> tests/commonmark.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     html: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start_line`
[INFO] [stdout]   --> tests/commonmark.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     start_line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_line`
[INFO] [stdout]   --> tests/commonmark.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     end_line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "2dde109b396b0d354cdf7fb447cc09aab028845f8865aa7d64ab7a466fc4e2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dde109b396b0d354cdf7fb447cc09aab028845f8865aa7d64ab7a466fc4e2ec", kill_on_drop: false }`
[INFO] [stdout] 2dde109b396b0d354cdf7fb447cc09aab028845f8865aa7d64ab7a466fc4e2ec