[INFO] cloning repository https://github.com/afshinm/juggernaut-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/afshinm/juggernaut-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafshinm%2Fjuggernaut-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafshinm%2Fjuggernaut-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0169b69ae4b4f96843932994ceaf6538d6a3b6f
[INFO] documenting afshinm/juggernaut-demo 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%2Fafshinm%2Fjuggernaut-demo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/afshinm/juggernaut-demo 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/afshinm/juggernaut-demo
[INFO] finished tweaking git repo https://github.com/afshinm/juggernaut-demo
[INFO] tweaked toml for git repo https://github.com/afshinm/juggernaut-demo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/afshinm/juggernaut-demo 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 20750b3dc9a0e0cb1141b2fdc45e5a0c4646619683250771d8f20d711eaa49a2
[INFO] running `Command { std: "docker" "start" "-a" "20750b3dc9a0e0cb1141b2fdc45e5a0c4646619683250771d8f20d711eaa49a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20750b3dc9a0e0cb1141b2fdc45e5a0c4646619683250771d8f20d711eaa49a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20750b3dc9a0e0cb1141b2fdc45e5a0c4646619683250771d8f20d711eaa49a2", kill_on_drop: false }`
[INFO] [stdout] 20750b3dc9a0e0cb1141b2fdc45e5a0c4646619683250771d8f20d711eaa49a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 557ca1d9069db9a837d7d3aee5109983d2aac870a01bba6cf15bb8c40504db6c
[INFO] running `Command { std: "docker" "start" "-a" "557ca1d9069db9a837d7d3aee5109983d2aac870a01bba6cf15bb8c40504db6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.31
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking assert_approx_eq v1.0.0
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking itertools v0.6.2
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking csv-core v0.1.3
[INFO] [stderr]     Checking juggernaut v0.9.0
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking serde_json v1.0.3
[INFO] [stderr]     Checking csv v1.0.0-beta.4
[INFO] [stderr]     Checking stdweb v0.1.2
[INFO] [stderr]  Documenting juggernaut-iris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(link_args)]
[INFO] [stdout]   |            ^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of using `-C link-arg=ARG` on command line, which is available from cargo build scripts with `cargo:rustc-link-arg` now
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `link_args` in this scope
[INFO] [stdout]  --> src/main.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[link_args = "-s BUILD_AS_WORKER=1"]
[INFO] [stdout]   |   ^^^^^^^^^ help: a built-in attribute with a similar name exists: `linkage`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(link_args)]
[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 `juggernaut-iris`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name juggernaut_iris 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 csv=/opt/rustwide/target/debug/deps/libcsv-ac11ede2f9246e29.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-08838f7c33878ab5.rmeta --extern juggernaut=/opt/rustwide/target/debug/deps/libjuggernaut-e0212c7de4a0a028.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-9df3a7dbd1059b0e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e4a4579748e3f48b.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-7e05035e0f7f5100.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-da4ad8ddd8b9b9a9.rmeta --extern stdweb=/opt/rustwide/target/debug/deps/libstdweb-d483bf7b5ec5a584.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "557ca1d9069db9a837d7d3aee5109983d2aac870a01bba6cf15bb8c40504db6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557ca1d9069db9a837d7d3aee5109983d2aac870a01bba6cf15bb8c40504db6c", kill_on_drop: false }`
[INFO] [stdout] 557ca1d9069db9a837d7d3aee5109983d2aac870a01bba6cf15bb8c40504db6c
