[INFO] updating cached repository https://github.com/mk2/muun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 114272a0f85763fecd44960e25eb66a4b8877579
[INFO] documenting mk2/muun against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk2%2Fmuun" "/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/mk2/muun on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mk2/muun
[INFO] finished tweaking git repo https://github.com/mk2/muun
[INFO] tweaked toml for git repo https://github.com/mk2/muun written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mk2/muun already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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[INFO] the lockfile is outdated, regenerating it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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 344dd3f54bc4b354ed0bfd39d48caa1ae892eb97b3a5050b54e161d69f4911b7
[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" "344dd3f54bc4b354ed0bfd39d48caa1ae892eb97b3a5050b54e161d69f4911b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "344dd3f54bc4b354ed0bfd39d48caa1ae892eb97b3a5050b54e161d69f4911b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344dd3f54bc4b354ed0bfd39d48caa1ae892eb97b3a5050b54e161d69f4911b7", kill_on_drop: false }`
[INFO] [stdout] 344dd3f54bc4b354ed0bfd39d48caa1ae892eb97b3a5050b54e161d69f4911b7
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c791165bb31cd9d75315e81aa62631ce20de78719a0c944b8e099ea7a4ac5d19
[INFO] running `Command { std: "docker" "start" "-a" "c791165bb31cd9d75315e81aa62631ce20de78719a0c944b8e099ea7a4ac5d19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]  Documenting muun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.17s
[INFO] running `Command { std: "docker" "inspect" "c791165bb31cd9d75315e81aa62631ce20de78719a0c944b8e099ea7a4ac5d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c791165bb31cd9d75315e81aa62631ce20de78719a0c944b8e099ea7a4ac5d19", kill_on_drop: false }`
[INFO] [stdout] c791165bb31cd9d75315e81aa62631ce20de78719a0c944b8e099ea7a4ac5d19