[INFO] fetching crate termbook 1.4.2...
[INFO] checking termbook-1.4.2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate termbook 1.4.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate termbook 1.4.2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate termbook 1.4.2
[INFO] finished tweaking crates.io crate termbook 1.4.2
[INFO] tweaked toml for crates.io crate termbook 1.4.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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 gitignore v1.0.7
[INFO] [stderr]   Downloaded mdcat v0.15.1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 659bd50ba927ecba511c5d30a095af82efb9e4b34faeb91f7fa0640a9d1beee1
[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" "659bd50ba927ecba511c5d30a095af82efb9e4b34faeb91f7fa0640a9d1beee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "659bd50ba927ecba511c5d30a095af82efb9e4b34faeb91f7fa0640a9d1beee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659bd50ba927ecba511c5d30a095af82efb9e4b34faeb91f7fa0640a9d1beee1", kill_on_drop: false }`
[INFO] [stdout] 659bd50ba927ecba511c5d30a095af82efb9e4b34faeb91f7fa0640a9d1beee1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e813f21f158b8fcc7f8838b5e6305712c59477998d3830914ed5f4a0df92e697
[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" "e813f21f158b8fcc7f8838b5e6305712c59477998d3830914ed5f4a0df92e697", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
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[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking scopeguard v1.1.0
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[INFO] [stderr]     Checking precomputed-hash v0.1.1
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[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
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[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking bytemuck v1.4.1
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[INFO] [stderr]    Compiling unicase v2.6.0
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[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling unicase v1.4.2
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.0
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[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking term_size v0.3.2
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[INFO] [stderr]     Checking inotify-sys v0.1.3
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[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking addr2line v0.13.0
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[INFO] [stderr]     Checking inotify v0.7.1
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[INFO] [stderr]     Checking flate2 v1.0.18
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[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v2.0.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking rayon-core v1.8.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking ws v0.9.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking onig v4.3.3
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]     Checking handlebars v3.5.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling toml-query_derive v0.9.2
[INFO] [stderr]     Checking toml-query v0.9.2
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking syntect v3.1.0
[INFO] [stderr]     Checking elasticlunr-rs v2.3.9
[INFO] [stderr]     Checking mdcat v0.15.1
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking ammonia v3.1.0
[INFO] [stderr]     Checking mdbook v0.3.7
[INFO] [stderr]     Checking termbook v1.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0271]: type mismatch resolving `<std::vec::IntoIter<Event<'_>> as Iterator>::Item == pulldown_cmark::parse::Event<'_>`
[INFO] [stdout]    --> src/playback.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         push_tty(
[INFO] [stdout]     |         ^^^^^^^^ expected enum `pulldown_cmark::parse::Event`, found enum `Event`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdcat-0.15.1/src/lib.rs:71:17
[INFO] [stdout]     |
[INFO] [stdout] 71  |     I: Iterator<Item = Event<'e>>,
[INFO] [stdout]     |                 ---------------- required by this bound in `push_tty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: perhaps two different versions of crate `pulldown_cmark` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<std::vec::IntoIter<Event<'_>> as Iterator>::Item == pulldown_cmark::parse::Event<'_>`
[INFO] [stdout]    --> src/playback.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         push_tty(
[INFO] [stdout]     |         ^^^^^^^^ expected enum `pulldown_cmark::parse::Event`, found enum `Event`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mdcat-0.15.1/src/lib.rs:71:17
[INFO] [stdout]     |
[INFO] [stdout] 71  |     I: Iterator<Item = Event<'e>>,
[INFO] [stdout]     |                 ---------------- required by this bound in `push_tty`
[INFO] [stdout]     |
[INFO] [stdout]     = note: perhaps two different versions of crate `pulldown_cmark` are being used?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `termbook`
[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" "e813f21f158b8fcc7f8838b5e6305712c59477998d3830914ed5f4a0df92e697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e813f21f158b8fcc7f8838b5e6305712c59477998d3830914ed5f4a0df92e697", kill_on_drop: false }`
[INFO] [stdout] e813f21f158b8fcc7f8838b5e6305712c59477998d3830914ed5f4a0df92e697