[INFO] cloning repository https://github.com/jkcclemens/msyt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkcclemens/msyt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fmsyt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Fmsyt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5789bc3c2f0747adc096afb6a2c716f87dbd7b4d
[INFO] documenting jkcclemens/msyt 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%2Fmsyt" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkcclemens/msyt 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/msyt
[INFO] finished tweaking git repo https://github.com/jkcclemens/msyt
[INFO] tweaked toml for git repo https://github.com/jkcclemens/msyt written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/jkcclemens/msyt 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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 6d84438072091d1027e09fba653ead1fae7c3fa03397a4349e78f095ef625da4
[INFO] running `Command { std: "docker" "start" "-a" "6d84438072091d1027e09fba653ead1fae7c3fa03397a4349e78f095ef625da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d84438072091d1027e09fba653ead1fae7c3fa03397a4349e78f095ef625da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d84438072091d1027e09fba653ead1fae7c3fa03397a4349e78f095ef625da4", kill_on_drop: false }`
[INFO] [stdout] 6d84438072091d1027e09fba653ead1fae7c3fa03397a4349e78f095ef625da4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 53193fc1d9b1287a1dd5a4658732e74542bf8c0637084a346397b630e45f00b4
[INFO] running `Command { std: "docker" "start" "-a" "53193fc1d9b1287a1dd5a4658732e74542bf8c0637084a346397b630e45f00b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking byteordered v0.4.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking msbt v0.1.0 (https://github.com/jkcclemens/msbt-rs#7bdb5031)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_remove_item)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<SectionTag>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/builder.rs:203:24
[INFO] [stdout]     |
[INFO] [stdout] 203 |     self.section_order.remove_item(&SectionTag::Nli1);
[INFO] [stdout]     |                        ^^^^^^^^^^^ method not found in `Vec<SectionTag>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<SectionTag>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/builder.rs:211:24
[INFO] [stdout]     |
[INFO] [stdout] 211 |     self.section_order.remove_item(&SectionTag::Ato1);
[INFO] [stdout]     |                        ^^^^^^^^^^^ method not found in `Vec<SectionTag>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<SectionTag>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/builder.rs:219:24
[INFO] [stdout]     |
[INFO] [stdout] 219 |     self.section_order.remove_item(&SectionTag::Atr1);
[INFO] [stdout]     |                        ^^^^^^^^^^^ method not found in `Vec<SectionTag>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<SectionTag>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/builder.rs:227:24
[INFO] [stdout]     |
[INFO] [stdout] 227 |     self.section_order.remove_item(&SectionTag::Tsy1);
[INFO] [stdout]     |                        ^^^^^^^^^^^ method not found in `Vec<SectionTag>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<SectionTag>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/msbt-rs-388c79d8058cbe92/7bdb503/src/builder.rs:235:24
[INFO] [stdout]     |
[INFO] [stdout] 235 |     self.section_order.remove_item(&SectionTag::Txt2);
[INFO] [stdout]     |                        ^^^^^^^^^^^ method not found in `Vec<SectionTag>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `msbt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "53193fc1d9b1287a1dd5a4658732e74542bf8c0637084a346397b630e45f00b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53193fc1d9b1287a1dd5a4658732e74542bf8c0637084a346397b630e45f00b4", kill_on_drop: false }`
[INFO] [stdout] 53193fc1d9b1287a1dd5a4658732e74542bf8c0637084a346397b630e45f00b4
