[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 beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frozbb%2Fblindsig_benches" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rozbb/blindsig_benches on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded tracing-core v0.1.14
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[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] [stderr]   Downloaded plotters v0.2.15
[INFO] [stderr]   Downloaded criterion-plot v0.4.3
[INFO] [stderr]   Downloaded encoding_rs v0.8.23
[INFO] [stderr]   Downloaded multipart v0.15.4
[INFO] [stderr]   Downloaded rouille v3.0.0
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bf128d5aab7250b191025071b460ca416477632446c8b84839835bf1e78bae2
[INFO] running `Command { std: "docker" "start" "-a" "9bf128d5aab7250b191025071b460ca416477632446c8b84839835bf1e78bae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bf128d5aab7250b191025071b460ca416477632446c8b84839835bf1e78bae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bf128d5aab7250b191025071b460ca416477632446c8b84839835bf1e78bae2", kill_on_drop: false }`
[INFO] [stdout] 9bf128d5aab7250b191025071b460ca416477632446c8b84839835bf1e78bae2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531484647b20b4201e2fc292f0ba3b80b33bb82dcca5a1629bce219b9bee5bac
[INFO] running `Command { std: "docker" "start" "-a" "531484647b20b4201e2fc292f0ba3b80b33bb82dcca5a1629bce219b9bee5bac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
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[INFO] [stderr]     Checking curve25519-dalek v2.1.0
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[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[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 multipart v0.15.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
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[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking rouille v3.0.0
[INFO] [stderr]     Checking hyper v0.13.7
[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 beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[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/libblake2-636c478c0cb1888a.rmeta --extern curve25519_dalek=/opt/rustwide/target/debug/deps/libcurve25519_dalek-3eec93f77a0782f4.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-b53bf8380d9045ae.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-3484b2cbaf86d1d6.rmeta --extern gnuplot=/opt/rustwide/target/debug/deps/libgnuplot-87294c281884c063.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-5db5be1b3d3c7bc2.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-903267dbc4d30452.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-f6cf68332de708d5.rmeta --extern rouille=/opt/rustwide/target/debug/deps/librouille-c006e4e6e797ef65.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-278302a64c572f59.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1ba6298fdbe523da.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "531484647b20b4201e2fc292f0ba3b80b33bb82dcca5a1629bce219b9bee5bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531484647b20b4201e2fc292f0ba3b80b33bb82dcca5a1629bce219b9bee5bac", kill_on_drop: false }`
[INFO] [stdout] 531484647b20b4201e2fc292f0ba3b80b33bb82dcca5a1629bce219b9bee5bac
