[INFO] crate diff_match_patch 0.1.1 is already in cache
[INFO] documenting diff_match_patch-0.1.1 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate diff_match_patch 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate diff_match_patch 0.1.1 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 crates.io crate diff_match_patch 0.1.1
[INFO] finished tweaking crates.io crate diff_match_patch 0.1.1
[INFO] tweaked toml for crates.io crate diff_match_patch 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate diff_match_patch 0.1.1 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d7b775aaa2c3d45b4d8afcce14028ac9575494f70765f5b68b31e04f0170c47
[INFO] running `Command { std: "docker" "start" "-a" "7d7b775aaa2c3d45b4d8afcce14028ac9575494f70765f5b68b31e04f0170c47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d7b775aaa2c3d45b4d8afcce14028ac9575494f70765f5b68b31e04f0170c47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7b775aaa2c3d45b4d8afcce14028ac9575494f70765f5b68b31e04f0170c47", kill_on_drop: false }`
[INFO] [stdout] 7d7b775aaa2c3d45b4d8afcce14028ac9575494f70765f5b68b31e04f0170c47
[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] [stdout] e073915d98a0c6153d7529c2d428f8d0cbe416e15ab4ae926ab3d7cb7fa8e917
[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" "e073915d98a0c6153d7529c2d428f8d0cbe416e15ab4ae926ab3d7cb7fa8e917", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking diff_match_patch v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting diff_match_patch v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dmp.rs:932:13
[INFO] [stdout]     |
[INFO] [stdout] 932 |         let mut text1_trunc;
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dmp.rs:933:13
[INFO] [stdout]     |
[INFO] [stdout] 933 |         let mut text2_trunc;
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.31s
[INFO] running `Command { std: "docker" "inspect" "e073915d98a0c6153d7529c2d428f8d0cbe416e15ab4ae926ab3d7cb7fa8e917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e073915d98a0c6153d7529c2d428f8d0cbe416e15ab4ae926ab3d7cb7fa8e917", kill_on_drop: false }`
[INFO] [stdout] e073915d98a0c6153d7529c2d428f8d0cbe416e15ab4ae926ab3d7cb7fa8e917