[INFO] cloning repository https://github.com/s-perez/rusty-dedup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/s-perez/rusty-dedup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-perez%2Frusty-dedup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-perez%2Frusty-dedup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7d79bdcd2d8638818807bb5e2a1bc25e1ae6766
[INFO] documenting s-perez/rusty-dedup against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-perez%2Frusty-dedup" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/s-perez/rusty-dedup on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/s-perez/rusty-dedup
[INFO] finished tweaking git repo https://github.com/s-perez/rusty-dedup
[INFO] tweaked toml for git repo https://github.com/s-perez/rusty-dedup written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/s-perez/rusty-dedup already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded radix_trie v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e081c3f036eafaaef208dfb1f77fc9472cf3b96d07539694fdbaed7cf9afa72
[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" "6e081c3f036eafaaef208dfb1f77fc9472cf3b96d07539694fdbaed7cf9afa72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e081c3f036eafaaef208dfb1f77fc9472cf3b96d07539694fdbaed7cf9afa72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e081c3f036eafaaef208dfb1f77fc9472cf3b96d07539694fdbaed7cf9afa72", kill_on_drop: false }`
[INFO] [stdout] 6e081c3f036eafaaef208dfb1f77fc9472cf3b96d07539694fdbaed7cf9afa72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3da6c6fe1b4a3c85795a5b12d06e543ddac2ba39a3dcd7e53669004335f48d8
[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" "b3da6c6fe1b4a3c85795a5b12d06e543ddac2ba39a3dcd7e53669004335f48d8", 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] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking radix_trie v0.1.4
[INFO] [stderr]  Documenting rusty-dedup v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `fail` in this scope
[INFO] [stdout]   --> src/json.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |             None => fail!(""),
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_bindings)]
[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] [stderr] error: Could not document `rusty-dedup`.
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rusty_dedup 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 clap=/opt/rustwide/target/debug/deps/libclap-14e68f57548d8c1a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-ea8c23e1ba7a59c0.rmeta --extern radix_trie=/opt/rustwide/target/debug/deps/libradix_trie-2955450ead0a35e8.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-aefec4800b927403.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-151994cde534e962.rmeta --cap-lints=warn --crate-version 1.0.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b3da6c6fe1b4a3c85795a5b12d06e543ddac2ba39a3dcd7e53669004335f48d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3da6c6fe1b4a3c85795a5b12d06e543ddac2ba39a3dcd7e53669004335f48d8", kill_on_drop: false }`
[INFO] [stdout] b3da6c6fe1b4a3c85795a5b12d06e543ddac2ba39a3dcd7e53669004335f48d8