[INFO] cloning repository https://github.com/wyhhh/md_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wyhhh/md_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fmd_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fmd_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7685828dad6314e2e5e8986a4ae592d7a62e6c5e
[INFO] checking wyhhh/md_engine against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fmd_engine" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wyhhh/md_engine
[INFO] finished tweaking git repo https://github.com/wyhhh/md_engine
[INFO] tweaked toml for git repo https://github.com/wyhhh/md_engine written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wyhhh/md_engine on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wyhhh/md_engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.29
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 978706e75539cdb62ad9318c2874dd2a04e25699e4b2002202c64b99b45612c2
[INFO] running `Command { std: "docker" "start" "-a" "978706e75539cdb62ad9318c2874dd2a04e25699e4b2002202c64b99b45612c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978706e75539cdb62ad9318c2874dd2a04e25699e4b2002202c64b99b45612c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978706e75539cdb62ad9318c2874dd2a04e25699e4b2002202c64b99b45612c2", kill_on_drop: false }`
[INFO] [stdout] 978706e75539cdb62ad9318c2874dd2a04e25699e4b2002202c64b99b45612c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96d4700674ad92dc67777182cb4ff05cbedae9b00bc06a83bb87838f604d595
[INFO] running `Command { std: "docker" "start" "-a" "b96d4700674ad92dc67777182cb4ff05cbedae9b00bc06a83bb87838f604d595", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking chr v0.1.0 (/opt/rustwide/workdir/chr)
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling enum_len v0.1.0 (/opt/rustwide/workdir/enum_len)
[INFO] [stderr]     Checking md_engine v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trace_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]    --> src/parser.rs:181:44
[INFO] [stdout]     |
[INFO] [stdout] 181 | ...                   Token::Tag(tag) => unreachable!(),
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:182:57
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:204:57
[INFO] [stdout]     |
[INFO] [stdout] 204 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:224:57
[INFO] [stdout]     |
[INFO] [stdout] 224 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tokenizer.rs:319:31
[INFO] [stdout]     |
[INFO] [stdout] 319 |             Token::PureText { data, char_len } => char_len,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trace_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `md_engine` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `tag`
[INFO] [stdout]    --> src/parser.rs:181:44
[INFO] [stdout]     |
[INFO] [stdout] 181 | ...                   Token::Tag(tag) => unreachable!(),
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:182:57
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:204:57
[INFO] [stdout]     |
[INFO] [stdout] 204 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `char_len`
[INFO] [stdout]    --> src/parser.rs:224:57
[INFO] [stdout]     |
[INFO] [stdout] 224 | ...                   Token::PureText { data, char_len } => {
[INFO] [stdout]     |                                               ^^^^^^^^ help: try ignoring the field: `char_len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tokenizer.rs:319:31
[INFO] [stdout]     |
[INFO] [stdout] 319 |             Token::PureText { data, char_len } => char_len,
[INFO] [stdout]     |                               ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `md_engine` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b96d4700674ad92dc67777182cb4ff05cbedae9b00bc06a83bb87838f604d595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96d4700674ad92dc67777182cb4ff05cbedae9b00bc06a83bb87838f604d595", kill_on_drop: false }`
[INFO] [stdout] b96d4700674ad92dc67777182cb4ff05cbedae9b00bc06a83bb87838f604d595
