[INFO] cloning repository https://github.com/Melkonka/MelkonTD
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Melkonka/MelkonTD" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelkonka%2FMelkonTD", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelkonka%2FMelkonTD'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52b5db196f7dff296cf8fb73310e07687680b2c2
[INFO] documenting Melkonka/MelkonTD 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%2FMelkonka%2FMelkonTD" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Melkonka/MelkonTD 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/Melkonka/MelkonTD
[INFO] removed path dependency utils from git repo https://github.com/Melkonka/MelkonTD
[INFO] finished tweaking git repo https://github.com/Melkonka/MelkonTD
[INFO] tweaked toml for git repo https://github.com/Melkonka/MelkonTD written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Melkonka/MelkonTD 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] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3bd14e641394e8667041bc78bb3cccaa597b6cd1e2995c4b718d65eadf5f5524
[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" "3bd14e641394e8667041bc78bb3cccaa597b6cd1e2995c4b718d65eadf5f5524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bd14e641394e8667041bc78bb3cccaa597b6cd1e2995c4b718d65eadf5f5524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd14e641394e8667041bc78bb3cccaa597b6cd1e2995c4b718d65eadf5f5524", kill_on_drop: false }`
[INFO] [stdout] 3bd14e641394e8667041bc78bb3cccaa597b6cd1e2995c4b718d65eadf5f5524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 9b3e10cbeb9a2007f05d0cb81ac62bf3d340051eac25a624c506f98d8ec09fe2
[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" "9b3e10cbeb9a2007f05d0cb81ac62bf3d340051eac25a624c506f98d8ec09fe2", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling tinystr v0.3.4
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking bytemuck v1.4.0
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking fluent-syntax v0.9.3
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking dunce v1.0.1
[INFO] [stderr]     Checking commandext v0.1.0
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling unic-langid-impl v0.8.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking utils v0.0.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:83:3
[INFO] [stdout]    |
[INFO] [stdout] 83 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:77:3
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:63:3
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:45:3
[INFO] [stdout]    |
[INFO] [stdout] 45 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `output` on type `std::process::Output`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stdout]    |                                    ^^^^^^ unknown field
[INFO] [stdout]    |
[INFO] [stdout]    = note: available fields are: `status`, `stdout`, `stderr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stdout]    |                   ----------------------------------------------------------- this expression has type `std::result::Result<_, _>`
[INFO] [stdout] 18 |                 Some(i) => i,
[INFO] [stdout]    |                 ^^^^^^^ expected enum `std::result::Result`, found enum `std::option::Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<_, _>`
[INFO] [stdout]               found enum `std::option::Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stdout]    |                   ----------------------------------------------------------- this expression has type `std::result::Result<_, _>`
[INFO] [stdout] 18 |                 Some(i) => i,
[INFO] [stdout] 19 |                 None    => panic!("unable to cast nproc output!"),
[INFO] [stdout]    |                 ^^^^ expected enum `std::result::Result`, found enum `std::option::Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<_, _>`
[INFO] [stdout]               found enum `std::option::Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `output` on type `std::process::Output`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:41:54
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut res =  String::from_utf8_lossy(o.output.as_slice());
[INFO] [stdout]    |                                                      ^^^^^^ unknown field
[INFO] [stdout]    |
[INFO] [stdout]    = note: available fields are: `status`, `stdout`, `stderr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&std::string::String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         self.as_slice().is_empty()
[INFO] [stdout]    |              ^^^^^^^^ method not found in `&std::string::String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utils`.
[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" "9b3e10cbeb9a2007f05d0cb81ac62bf3d340051eac25a624c506f98d8ec09fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b3e10cbeb9a2007f05d0cb81ac62bf3d340051eac25a624c506f98d8ec09fe2", kill_on_drop: false }`
[INFO] [stdout] 9b3e10cbeb9a2007f05d0cb81ac62bf3d340051eac25a624c506f98d8ec09fe2