[INFO] fetching crate xwords 0.3.1...
[INFO] checking xwords-0.3.1 against f3df2feb79b2422c028f78855ec6ffe2e212d7cc for pr-163699
[INFO] extracting crate xwords 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate xwords 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xwords 0.3.1
[INFO] tweaked toml for crates.io crate xwords 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xwords 0.3.1 on toolchain f3df2feb79b2422c028f78855ec6ffe2e212d7cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3df2feb79b2422c028f78855ec6ffe2e212d7cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xwords 0.3.1 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" "+f3df2feb79b2422c028f78855ec6ffe2e212d7cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018
[INFO] running `Command { std: "docker" "start" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018" "/opt/rustwide/cargo-home/bin/cargo" "+f3df2feb79b2422c028f78855ec6ffe2e212d7cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018" "/opt/rustwide/cargo-home/bin/cargo" "+f3df2feb79b2422c028f78855ec6ffe2e212d7cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling symbolic-demangle v7.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling const-random-macro v0.1.12
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking const-random v0.1.12
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking inferno v0.10.1
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking xwords v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: reserved `doc` attribute `Hidden`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tinytemplate-1.1.0/src/error.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 |     #[doc(Hidden)]
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinytemplate` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018", kill_on_drop: false }`
[INFO] [stdout] 3958eb1550a7275925239a00ac5ae5cc7226d8ebf446da1892f67c880ae03018