[INFO] cloning repository https://github.com/silven/meadow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/silven/meadow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilven%2Fmeadow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilven%2Fmeadow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1378181a98ff7b4e382a34fbe484734ba2b1e12b
[INFO] checking silven/meadow against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilven%2Fmeadow" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/silven/meadow on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/silven/meadow
[INFO] finished tweaking git repo https://github.com/silven/meadow
[INFO] tweaked toml for git repo https://github.com/silven/meadow written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/silven/meadow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/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[INFO] the lockfile is outdated, regenerating it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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c5dfb85ffa75708e7613fe298495070929ca31dafe8a5677ef9e00c7a1f9f43
[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" "3c5dfb85ffa75708e7613fe298495070929ca31dafe8a5677ef9e00c7a1f9f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c5dfb85ffa75708e7613fe298495070929ca31dafe8a5677ef9e00c7a1f9f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5dfb85ffa75708e7613fe298495070929ca31dafe8a5677ef9e00c7a1f9f43", kill_on_drop: false }`
[INFO] [stdout] 3c5dfb85ffa75708e7613fe298495070929ca31dafe8a5677ef9e00c7a1f9f43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68413912e61b650e44c5438f33f23d4d09c9a6681bd78f5eb3ecd6e4d7ff56c3
[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" "68413912e61b650e44c5438f33f23d4d09c9a6681bd78f5eb3ecd6e4d7ff56c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling khronos_api v0.0.8
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking debug-builders v0.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking clock_ticks v0.1.1
[INFO] [stderr]     Checking obj v0.10.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling xml-rs v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking dylib v0.0.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling xml-rs v0.1.26
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stdout] error: no rules expected the token `flags`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     flags IndentFlags: u8 {
[INFO] [stdout]     |     ^^^^^ no rules expected this token in macro call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `IndentFlags`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:77:32
[INFO] [stdout]    |
[INFO] [stdout] 77 |             indent_stack: vec!(IndentFlags::empty()),
[INFO] [stdout]    |                                ^^^^^^^^^^^ use of undeclared type `IndentFlags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IndentFlags` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:64:23
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct Emitter {
[INFO] [stdout]    |                   - help: you might be missing a type parameter: `<IndentFlags>`
[INFO] [stdout] ...
[INFO] [stdout] 64 |     indent_stack: Vec<IndentFlags>,
[INFO] [stdout]    |                       ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_TEXT` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:131:52
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.indent_stack.last().unwrap().contains(WROTE_TEXT)
[INFO] [stdout]     |                                                    ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_MARKUP` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:136:52
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.indent_stack.last().unwrap().contains(WROTE_MARKUP)
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_TEXT` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:141:50
[INFO] [stdout]     |
[INFO] [stdout] 141 |         *self.indent_stack.last_mut().unwrap() = WROTE_TEXT;
[INFO] [stdout]     |                                                  ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_MARKUP` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:146:50
[INFO] [stdout]     |
[INFO] [stdout] 146 |         *self.indent_stack.last_mut().unwrap() = WROTE_MARKUP;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_NOTHING` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |         *self.indent_stack.last_mut().unwrap() = WROTE_NOTHING;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `WROTE_NOTHING` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.1.26/src/writer/emitter.rs:179:32
[INFO] [stdout]     |
[INFO] [stdout] 179 |         self.indent_stack.push(WROTE_NOTHING);
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr] error: could not compile `xml-rs`
[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" "68413912e61b650e44c5438f33f23d4d09c9a6681bd78f5eb3ecd6e4d7ff56c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68413912e61b650e44c5438f33f23d4d09c9a6681bd78f5eb3ecd6e4d7ff56c3", kill_on_drop: false }`
[INFO] [stdout] 68413912e61b650e44c5438f33f23d4d09c9a6681bd78f5eb3ecd6e4d7ff56c3