[INFO] fetching crate mdx 0.0.4...
[INFO] checking mdx-0.0.4 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate mdx 0.0.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mdx 0.0.4 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb3a78823b8a3055ff287094e86abd4f15cb56ba5441217b1f4cbede428f52c5
[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" "eb3a78823b8a3055ff287094e86abd4f15cb56ba5441217b1f4cbede428f52c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb3a78823b8a3055ff287094e86abd4f15cb56ba5441217b1f4cbede428f52c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3a78823b8a3055ff287094e86abd4f15cb56ba5441217b1f4cbede428f52c5", kill_on_drop: false }`
[INFO] [stdout] eb3a78823b8a3055ff287094e86abd4f15cb56ba5441217b1f4cbede428f52c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b7e1c7c792c76f3f83ac3a9040732da5458471291e75cfe843ec400d67b05c
[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" "21b7e1c7c792c76f3f83ac3a9040732da5458471291e75cfe843ec400d67b05c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[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 lexical-core v0.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling eyre v0.6.3
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking owo-colors v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking indenter v0.3.0
[INFO] [stderr]     Checking cascade v1.0.0
[INFO] [stderr]     Checking indent_write v2.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking joinery v2.0.0
[INFO] [stderr]    Compiling datatest v0.6.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking nom-supreme v0.4.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling datatest-derive v0.6.3
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking tracing-error v0.1.2
[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 bstr v0.2.14
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] error[E0609]: no field `filter` on type `&mut TestOpts`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/datatest-0.6.3/src/runner.rs:258:34
[INFO] [stdout]     |
[INFO] [stdout] 258 |     if opts.filter_exact && opts.filter.as_ref().map_or(false, |s| s == real_test_name) {
[INFO] [stdout]     |                                  ^^^^^^ help: a field with a similar name exists: `filters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `filter` on type `&mut TestOpts`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/datatest-0.6.3/src/runner.rs:260:14
[INFO] [stdout]     |
[INFO] [stdout] 260 |         opts.filter = Some(format!("{}::", real_test_name));
[INFO] [stdout]     |              ^^^^^^ help: a field with a similar name exists: `filters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0609`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `datatest`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "21b7e1c7c792c76f3f83ac3a9040732da5458471291e75cfe843ec400d67b05c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b7e1c7c792c76f3f83ac3a9040732da5458471291e75cfe843ec400d67b05c", kill_on_drop: false }`
[INFO] [stdout] 21b7e1c7c792c76f3f83ac3a9040732da5458471291e75cfe843ec400d67b05c