[INFO] cloning repository https://github.com/toddmath/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/toddmath/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoddmath%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoddmath%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d6183b8d78267b52f1f0ed14e679f299ed9d96c
[INFO] documenting toddmath/advent-of-code-2020 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%2Ftoddmath%2Fadvent-of-code-2020" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/toddmath/advent-of-code-2020 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/toddmath/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/toddmath/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/toddmath/advent-of-code-2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/toddmath/advent-of-code-2020 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 02576321cb2953579a06da1887cd1d4268a44f51318813567c131c39985df780
[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" "02576321cb2953579a06da1887cd1d4268a44f51318813567c131c39985df780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02576321cb2953579a06da1887cd1d4268a44f51318813567c131c39985df780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02576321cb2953579a06da1887cd1d4268a44f51318813567c131c39985df780", kill_on_drop: false }`
[INFO] [stdout] 02576321cb2953579a06da1887cd1d4268a44f51318813567c131c39985df780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 381526cd4f1fe609017ae26a1bd8394957714b1ef42b96d73a595ee0ffd02b45
[INFO] running `Command { std: "docker" "start" "-a" "381526cd4f1fe609017ae26a1bd8394957714b1ef42b96d73a595ee0ffd02b45", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]     Checking futures-sink v0.3.9
[INFO] [stderr]    Compiling radium v0.6.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]    Compiling io-enum v0.2.6
[INFO] [stderr]     Checking futures-task v0.3.9
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking futures-channel v0.3.9
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-bigint v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking uint v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking bitvec v0.20.1
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking scan_fmt v0.2.5
[INFO] [stderr]     Checking predicates v1.0.6
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking parity-scale-codec v1.3.5
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive_utils v0.11.0
[INFO] [stderr]     Checking impl-codec v0.4.2
[INFO] [stderr]     Checking primitive-types v0.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.9
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling iter-enum v0.2.5
[INFO] [stderr]     Checking futures-util v0.3.9
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]  Documenting common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> common/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     const_in_array_repeat_expressions,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const_fn
[INFO] [stdout]   |     ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> common/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     const_in_array_repeat_expressions,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     const_fn
[INFO] [stdout]   |     ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> common/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / #![feature(
[INFO] [stdout] 3 | |     untagged_unions,
[INFO] [stdout] 4 | |     allocator_api,
[INFO] [stdout] 5 | |     const_generics,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     const_fn
[INFO] [stdout] 9 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `common`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name common common/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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-2bb0455753a8f12d.rmeta --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-a9ccf677044a93cd.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-335ca1a37265ba44.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9c436d67d12d7b9e.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-a54d4b647f438279.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-2694a49cb7178c20.so --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-2c7491dd088a116e.rmeta --extern num_iter=/opt/rustwide/target/debug/deps/libnum_iter-d2dc6da4a3410f4a.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-36a9706cfe4ada58.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-83a958caf7cd40d2.rmeta --extern scan_fmt=/opt/rustwide/target/debug/deps/libscan_fmt-ddc3537555efe0f3.rmeta --extern stable_deref_trait=/opt/rustwide/target/debug/deps/libstable_deref_trait-497dbfdb35b44b40.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 stable release channel
[INFO] [stdout]  --> common/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / #![feature(
[INFO] [stdout] 3 | |     untagged_unions,
[INFO] [stdout] 4 | |     allocator_api,
[INFO] [stdout] 5 | |     const_generics,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     const_fn
[INFO] [stdout] 9 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "381526cd4f1fe609017ae26a1bd8394957714b1ef42b96d73a595ee0ffd02b45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381526cd4f1fe609017ae26a1bd8394957714b1ef42b96d73a595ee0ffd02b45", kill_on_drop: false }`
[INFO] [stdout] 381526cd4f1fe609017ae26a1bd8394957714b1ef42b96d73a595ee0ffd02b45
