[INFO] cloning repository https://github.com/rozbb/blindsig_benches
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rozbb/blindsig_benches" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frozbb%2Fblindsig_benches", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frozbb%2Fblindsig_benches'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 318c17835ee0424b66d8da75720ad6f82d03737d
[INFO] documenting rozbb/blindsig_benches against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frozbb%2Fblindsig_benches" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rozbb/blindsig_benches on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rozbb/blindsig_benches
[INFO] finished tweaking git repo https://github.com/rozbb/blindsig_benches
[INFO] tweaked toml for git repo https://github.com/rozbb/blindsig_benches written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/rozbb/blindsig_benches already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fdfc36a04ed29e2454467eae6eab5d9d124e9331431e7115387bafd536c1df2
[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" "5fdfc36a04ed29e2454467eae6eab5d9d124e9331431e7115387bafd536c1df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fdfc36a04ed29e2454467eae6eab5d9d124e9331431e7115387bafd536c1df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fdfc36a04ed29e2454467eae6eab5d9d124e9331431e7115387bafd536c1df2", kill_on_drop: false }`
[INFO] [stdout] 5fdfc36a04ed29e2454467eae6eab5d9d124e9331431e7115387bafd536c1df2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84181ed74ccff388b9eaea4a9c9bd9cd3b17b0ad35ba74801d7925dc6f918d61
[INFO] running `Command { std: "docker" "start" "-a" "84181ed74ccff388b9eaea4a9c9bd9cd3b17b0ad35ba74801d7925dc6f918d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.14
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking gnuplot v0.0.37
[INFO] [stderr]     Checking gzip-header v0.3.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking multipart v0.15.4
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking rouille v3.0.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.7
[INFO] [stderr]     Checking blind_sig_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting blind_sig_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `blind_sig_bench`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name blind_sig_bench src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern blake2=/opt/rustwide/target/debug/deps/libblake2-1d6cc56632037b30.rmeta --extern curve25519_dalek=/opt/rustwide/target/debug/deps/libcurve25519_dalek-9be6bd949681be91.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-9a1825d502168e9a.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-33030bdc0e678772.rmeta --extern gnuplot=/opt/rustwide/target/debug/deps/libgnuplot-18e2091e233d622a.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-073e655effbbbed7.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-4dbea51a448b2d3f.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-73eddb03922bfa39.rmeta --extern rouille=/opt/rustwide/target/debug/deps/librouille-8071ba157fa11ce6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b99a1c6344a7f6dc.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1db032e7f55656de.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "84181ed74ccff388b9eaea4a9c9bd9cd3b17b0ad35ba74801d7925dc6f918d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84181ed74ccff388b9eaea4a9c9bd9cd3b17b0ad35ba74801d7925dc6f918d61", kill_on_drop: false }`
[INFO] [stdout] 84181ed74ccff388b9eaea4a9c9bd9cd3b17b0ad35ba74801d7925dc6f918d61
