[INFO] cloning repository https://github.com/Weltraumschaf/minivm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Weltraumschaf/minivm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeltraumschaf%2Fminivm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeltraumschaf%2Fminivm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6257253bbca9cc6ea5f83a3c6dca902dcd1d1f6
[INFO] documenting Weltraumschaf/minivm against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeltraumschaf%2Fminivm" "/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/Weltraumschaf/minivm 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/Weltraumschaf/minivm
[INFO] finished tweaking git repo https://github.com/Weltraumschaf/minivm
[INFO] tweaked toml for git repo https://github.com/Weltraumschaf/minivm written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Weltraumschaf/minivm 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] 483011f7f6143d32ece86c029e94746deae1f1b74a2b4c67e622f25de169ed4f
[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" "483011f7f6143d32ece86c029e94746deae1f1b74a2b4c67e622f25de169ed4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "483011f7f6143d32ece86c029e94746deae1f1b74a2b4c67e622f25de169ed4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483011f7f6143d32ece86c029e94746deae1f1b74a2b4c67e622f25de169ed4f", kill_on_drop: false }`
[INFO] [stdout] 483011f7f6143d32ece86c029e94746deae1f1b74a2b4c67e622f25de169ed4f
[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" "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] 83c7db61d1f83cb77637516ca49688ac368dea5dd6ffe1b82ff7ad705d3c9959
[INFO] running `Command { std: "docker" "start" "-a" "83c7db61d1f83cb77637516ca49688ac368dea5dd6ffe1b82ff7ad705d3c9959", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking humantime v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking regex v0.2.6
[INFO] [stderr]     Checking env_logger v0.5.4
[INFO] [stderr]  Documenting minivm v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/frontend/character_helper.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         (CharacterHelper::is_alphabetic(ch) || CharacterHelper::is_numeric(ch))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[value]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     /// Stack (before -> after): [] -> [value]
[INFO] [stdout]    |                                         ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[value]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |     /// Stack (before -> after): [value] -> []
[INFO] [stdout]    |                                   ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[value]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:35:41
[INFO] [stdout]    |
[INFO] [stdout] 35 |     /// Stack (before -> after): [] -> [value]
[INFO] [stdout]    |                                         ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |     /// Stack (before -> after): [value1, value2] -> [result]
[INFO] [stdout]    |                                                       ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 |     /// Stack (before -> after): [value1, value2] -> [result]
[INFO] [stdout]    |                                                       ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:47:55
[INFO] [stdout]    |
[INFO] [stdout] 47 |     /// Stack (before -> after): [value1, value2] -> [result]
[INFO] [stdout]    |                                                       ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:51:55
[INFO] [stdout]    |
[INFO] [stdout] 51 |     /// Stack (before -> after): [value1, value2] -> [result]
[INFO] [stdout]    |                                                       ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:55:55
[INFO] [stdout]    |
[INFO] [stdout] 55 |     /// Stack (before -> after): [value1, value2] -> [result]
[INFO] [stdout]    |                                                       ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[value]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:59:35
[INFO] [stdout]    |
[INFO] [stdout] 59 |     /// Stack (before -> after): [value] -> [result]
[INFO] [stdout]    |                                   ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[result]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:59:46
[INFO] [stdout]    |
[INFO] [stdout] 59 |     /// Stack (before -> after): [value] -> [result]
[INFO] [stdout]    |                                              ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[value]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/backend/bytecode.rs:63:35
[INFO] [stdout]    |
[INFO] [stdout] 63 |     /// Stack (before -> after): [value] -> []
[INFO] [stdout]    |                                   ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
[INFO] running `Command { std: "docker" "inspect" "83c7db61d1f83cb77637516ca49688ac368dea5dd6ffe1b82ff7ad705d3c9959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c7db61d1f83cb77637516ca49688ac368dea5dd6ffe1b82ff7ad705d3c9959", kill_on_drop: false }`
[INFO] [stdout] 83c7db61d1f83cb77637516ca49688ac368dea5dd6ffe1b82ff7ad705d3c9959