[INFO] cloning repository https://github.com/jkcclemens/passphrase
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkcclemens/passphrase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fpassphrase", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fpassphrase'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 303c0f9856b9508fdf6d2edd1d9df1542da246f3
[INFO] documenting jkcclemens/passphrase against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fpassphrase" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkcclemens/passphrase on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkcclemens/passphrase
[INFO] finished tweaking git repo https://github.com/jkcclemens/passphrase
[INFO] tweaked toml for git repo https://github.com/jkcclemens/passphrase written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/jkcclemens/passphrase already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01eae8c959e81e2ec206aca7ad4714e7896ca53cd6281700c7f7151ffecb8f5c
[INFO] running `Command { std: "docker" "start" "-a" "01eae8c959e81e2ec206aca7ad4714e7896ca53cd6281700c7f7151ffecb8f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01eae8c959e81e2ec206aca7ad4714e7896ca53cd6281700c7f7151ffecb8f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01eae8c959e81e2ec206aca7ad4714e7896ca53cd6281700c7f7151ffecb8f5c", kill_on_drop: false }`
[INFO] [stdout] 01eae8c959e81e2ec206aca7ad4714e7896ca53cd6281700c7f7151ffecb8f5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b25afb0e0f4fe810688f3c3e0e9d0654b17efd3aab4d0b3eb07b24cb4ab4af4
[INFO] running `Command { std: "docker" "start" "-a" "4b25afb0e0f4fe810688f3c3e0e9d0654b17efd3aab4d0b3eb07b24cb4ab4af4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling lzma-sys v0.1.14
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling rmp v0.8.7
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling passphrase v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting passphrase v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(process_exitcode_placeholder)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `passphrase`
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name passphrase src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-6be21fef03d13dcf.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-f1d0561133a8a41c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7a342a7b267c2dfd.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-02951c61f382f214.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6e7301dd2af2e58a.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-882bb8b27fb98aab.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2c12920d4f917d2c.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-ee6b0f5bdb74e2f9.so --extern xz2=/opt/rustwide/target/debug/deps/libxz2-67c34bb7e049f517.rmeta --cap-lints=warn --crate-version 1.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4b25afb0e0f4fe810688f3c3e0e9d0654b17efd3aab4d0b3eb07b24cb4ab4af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b25afb0e0f4fe810688f3c3e0e9d0654b17efd3aab4d0b3eb07b24cb4ab4af4", kill_on_drop: false }`
[INFO] [stdout] 4b25afb0e0f4fe810688f3c3e0e9d0654b17efd3aab4d0b3eb07b24cb4ab4af4
