[INFO] cloning repository https://github.com/hunger/gng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hunger/gng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhunger%2Fgng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhunger%2Fgng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 687a3b5861f1da05920d69eb058256c834894c02
[INFO] documenting hunger/gng 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%2Fhunger%2Fgng" "/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/hunger/gng 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] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/hunger/gng
[INFO] finished tweaking git repo https://github.com/hunger/gng
[INFO] tweaked toml for git repo https://github.com/hunger/gng written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/hunger/gng 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] 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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", 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] bbc463963310d767afd544b8b0b6edad14358f2dad34c650ff5ac121ef337831
[INFO] running `Command { std: "docker" "start" "-a" "bbc463963310d767afd544b8b0b6edad14358f2dad34c650ff5ac121ef337831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbc463963310d767afd544b8b0b6edad14358f2dad34c650ff5ac121ef337831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc463963310d767afd544b8b0b6edad14358f2dad34c650ff5ac121ef337831", kill_on_drop: false }`
[INFO] [stdout] bbc463963310d767afd544b8b0b6edad14358f2dad34c650ff5ac121ef337831
[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" "+1.54.0" "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] 599530803ee74ab131b722d185757c4dd89da9f9bd2ddf2877d5b6629ed8cc9e
[INFO] running `Command { std: "docker" "start" "-a" "599530803ee74ab131b722d185757c4dd89da9f9bd2ddf2877d5b6629ed8cc9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]     Checking unicode-normalization v0.1.18
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking filemagic v0.12.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tar v0.4.35
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]    Compiling zstd-sys v1.6.0+zstd.1.5.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking derive_builder v0.10.2
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking hyper v0.14.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rlua_serde v0.4.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking downloader v0.2.6
[INFO] [stderr]     Checking zstd v0.8.1+zstd.1.5.0
[INFO] [stderr]     Checking gng_shared v0.1.0 (/opt/rustwide/workdir/gng_shared)
[INFO] [stderr]  Documenting gng_shared v0.1.0 (/opt/rustwide/workdir/gng_shared)
[INFO] [stderr]     Checking gng_build_shared v0.1.0 (/opt/rustwide/workdir/gng_build_shared)
[INFO] [stderr]     Checking gng_db v0.1.0 (/opt/rustwide/workdir/gng_db)
[INFO] [stderr]  Documenting gng_build_shared v0.1.0 (/opt/rustwide/workdir/gng_build_shared)
[INFO] [stderr]  Documenting gng_db v0.1.0 (/opt/rustwide/workdir/gng_db)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> gng_db/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(map_try_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> gng_db/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(get_mut_unchecked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> gng_db/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(map_try_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> gng_db/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(get_mut_unchecked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `gng_db`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name gng_db gng_db/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 gng_shared=/opt/rustwide/target/debug/deps/libgng_shared-d7a3d0fb1c40a7e9.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-40674dd61ccb948f.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ead62d940e79342b.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-65df04d6efb4d642.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-17e959aca50385a0.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-e82d2355fcad1881.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: 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: build failed
[INFO] running `Command { std: "docker" "inspect" "599530803ee74ab131b722d185757c4dd89da9f9bd2ddf2877d5b6629ed8cc9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599530803ee74ab131b722d185757c4dd89da9f9bd2ddf2877d5b6629ed8cc9e", kill_on_drop: false }`
[INFO] [stdout] 599530803ee74ab131b722d185757c4dd89da9f9bd2ddf2877d5b6629ed8cc9e
