[INFO] fetching crate mon-artist 0.1.3...
[INFO] testing mon-artist-0.1.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate mon-artist 0.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mon-artist 0.1.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mon-artist 0.1.3
[INFO] finished tweaking crates.io crate mon-artist 0.1.3
[INFO] tweaked toml for crates.io crate mon-artist 0.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded ordermap v0.3.5
[INFO] [stderr]   Downloaded ascii-canvas v1.0.0
[INFO] [stderr]   Downloaded atty v0.1.2
[INFO] [stderr]   Downloaded ena v0.5.0
[INFO] [stderr]   Downloaded xml-rs v0.2.2
[INFO] [stderr]   Downloaded lalrpop-intern v0.13.1
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded lalrpop-util v0.13.1
[INFO] [stderr]   Downloaded treexml v0.3.0
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded tango v0.6.2
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded lalrpop v0.13.1
[INFO] [stderr]   Downloaded lalrpop-snap v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c6128d8024e1da835f2ab0e31505f86cf950d4e0dbde51d5c1744a987443b4d
[INFO] running `Command { std: "docker" "start" "-a" "7c6128d8024e1da835f2ab0e31505f86cf950d4e0dbde51d5c1744a987443b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c6128d8024e1da835f2ab0e31505f86cf950d4e0dbde51d5c1744a987443b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6128d8024e1da835f2ab0e31505f86cf950d4e0dbde51d5c1744a987443b4d", kill_on_drop: false }`
[INFO] [stdout] 7c6128d8024e1da835f2ab0e31505f86cf950d4e0dbde51d5c1744a987443b4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad568dc16fc0c44c53b61d8f9b914e0d3693da664fa8fc266de6f854f60e15c
[INFO] running `Command { std: "docker" "start" "-a" "dad568dc16fc0c44c53b61d8f9b914e0d3693da664fa8fc266de6f854f60e15c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling ena v0.5.0
[INFO] [stderr]    Compiling lalrpop-util v0.13.1
[INFO] [stderr]    Compiling lalrpop-intern v0.13.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling tango v0.6.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling filetime v0.1.15
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling xml-rs v0.2.2
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling treexml v0.3.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling lalrpop-snap v0.13.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tango-0.6.2/src/lib.rs:259:57
[INFO] [stdout]     |
[INFO] [stdout] 259 |         for c in self.0.components().skip(1) { p.push(c.as_ref().to_str().expect("how else can I replace root?")); }
[INFO] [stdout]     |                                                         ^^^^^^   ------ type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: try using a fully qualified path to specify the expected types
[INFO] [stdout]     |
[INFO] [stdout] 259 |         for c in self.0.components().skip(1) { p.push(<Component<'_> as AsRef<T>>::as_ref(&c).to_str().expect("how else can I replace root?")); }
[INFO] [stdout]     |                                                       +++++++++++++++++++++++++++++++++++++ ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tango-0.6.2/src/lib.rs:273:57
[INFO] [stdout]     |
[INFO] [stdout] 273 |         for c in self.0.components().skip(1) { p.push(c.as_ref().to_str().expect("how else can I replace root?")); }
[INFO] [stdout]     |                                                         ^^^^^^   ------ type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: try using a fully qualified path to specify the expected types
[INFO] [stdout]     |
[INFO] [stdout] 273 |         for c in self.0.components().skip(1) { p.push(<Component<'_> as AsRef<T>>::as_ref(&c).to_str().expect("how else can I replace root?")); }
[INFO] [stdout]     |                                                       +++++++++++++++++++++++++++++++++++++ ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tango` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dad568dc16fc0c44c53b61d8f9b914e0d3693da664fa8fc266de6f854f60e15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad568dc16fc0c44c53b61d8f9b914e0d3693da664fa8fc266de6f854f60e15c", kill_on_drop: false }`
[INFO] [stdout] dad568dc16fc0c44c53b61d8f9b914e0d3693da664fa8fc266de6f854f60e15c
