[INFO] fetching crate pumpkindb_engine 0.2.0...
[INFO] documenting pumpkindb_engine-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate pumpkindb_engine 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate pumpkindb_engine 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pumpkindb_engine 0.2.0
[INFO] finished tweaking crates.io crate pumpkindb_engine 0.2.0
[INFO] tweaked toml for crates.io crate pumpkindb_engine 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v0.4.0
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.2
[INFO] [stderr]   Downloaded quickcheck_macros v0.4.2
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded serde_yaml v0.6.2
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded toml v0.3.2
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] [stderr]   Downloaded pumpkinscript v0.2.0
[INFO] [stderr]   Downloaded quickcheck v0.4.1
[INFO] [stderr]   Downloaded serde_derive v0.9.15
[INFO] [stderr]   Downloaded serde-value v0.4.1
[INFO] [stderr]   Downloaded log4rs v0.6.3
[INFO] [stderr]   Downloaded config v0.3.1
[INFO] [stderr]   Downloaded hybrid-clocks v0.3.4
[INFO] [stderr]   Downloaded uuid v0.4.0
[INFO] [stderr]   Downloaded suppositions v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9ebfb250f58df7b9e008dbb6460d37dd037cb5fc4ab5b4093f6e36a4be402de
[INFO] running `Command { std: "docker" "start" "-a" "b9ebfb250f58df7b9e008dbb6460d37dd037cb5fc4ab5b4093f6e36a4be402de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ebfb250f58df7b9e008dbb6460d37dd037cb5fc4ab5b4093f6e36a4be402de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ebfb250f58df7b9e008dbb6460d37dd037cb5fc4ab5b4093f6e36a4be402de", kill_on_drop: false }`
[INFO] [stdout] b9ebfb250f58df7b9e008dbb6460d37dd037cb5fc4ab5b4093f6e36a4be402de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9116d1b5ac429b7887bfa3fd7b2735ad4aa8379d36d979310df35355437c49d4
[INFO] running `Command { std: "docker" "start" "-a" "9116d1b5ac429b7887bfa3fd7b2735ad4aa8379d36d979310df35355437c49d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking ordered-float v0.4.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking hex-slice v0.1.4
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking suppositions v0.1.4
[INFO] [stderr]     Checking serde-value v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking serde_yaml v0.6.2
[INFO] [stderr]     Checking toml v0.3.2
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking hybrid-clocks v0.3.4
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]     Checking pumpkinscript v0.2.0
[INFO] [stderr]     Checking serde_cbor v0.6.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/pumpkinscript-0.2.0/src/lib.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | #![feature(try_from)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log4rs v0.6.3
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pumpkinscript` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9116d1b5ac429b7887bfa3fd7b2735ad4aa8379d36d979310df35355437c49d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9116d1b5ac429b7887bfa3fd7b2735ad4aa8379d36d979310df35355437c49d4", kill_on_drop: false }`
[INFO] [stdout] 9116d1b5ac429b7887bfa3fd7b2735ad4aa8379d36d979310df35355437c49d4
