[INFO] cloning repository https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F603e3e81647dfd24%2Feurocrypt-stacking-2021-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F603e3e81647dfd24%2Feurocrypt-stacking-2021-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79d7b923bedb86e999aed0615a0028a97fb8c88d
[INFO] documenting 603e3e81647dfd24/eurocrypt-stacking-2021-code against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F603e3e81647dfd24%2Feurocrypt-stacking-2021-code" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code
[INFO] finished tweaking git repo https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code
[INFO] tweaked toml for git repo https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/603e3e81647dfd24/eurocrypt-stacking-2021-code 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zeroize v1.2.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57dbb4386a33cddba6e443536024cca35dc6ead3d99e53062a7f1999a1d4023e
[INFO] running `Command { std: "docker" "start" "-a" "57dbb4386a33cddba6e443536024cca35dc6ead3d99e53062a7f1999a1d4023e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57dbb4386a33cddba6e443536024cca35dc6ead3d99e53062a7f1999a1d4023e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57dbb4386a33cddba6e443536024cca35dc6ead3d99e53062a7f1999a1d4023e", kill_on_drop: false }`
[INFO] [stdout] 57dbb4386a33cddba6e443536024cca35dc6ead3d99e53062a7f1999a1d4023e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11ea5fd9b507d9c5e34b15ae3d5a32f8ad946b604c8f9f44f087533b955677ec
[INFO] running `Command { std: "docker" "start" "-a" "11ea5fd9b507d9c5e34b15ae3d5a32f8ad946b604c8f9f44f087533b955677ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]  Documenting stacksig 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[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(test)]
[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 document `stacksig`
[INFO] running `Command { std: "docker" "inspect" "11ea5fd9b507d9c5e34b15ae3d5a32f8ad946b604c8f9f44f087533b955677ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ea5fd9b507d9c5e34b15ae3d5a32f8ad946b604c8f9f44f087533b955677ec", kill_on_drop: false }`
[INFO] [stdout] 11ea5fd9b507d9c5e34b15ae3d5a32f8ad946b604c8f9f44f087533b955677ec
