[INFO] fetching crate document_tree 0.4.0...
[INFO] checking document_tree-0.4.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate document_tree 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate document_tree 0.4.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate document_tree 0.4.0
[INFO] finished tweaking crates.io crate document_tree 0.4.0
[INFO] tweaked toml for crates.io crate document_tree 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d8ff91be28fada797fd068c6419892659197dc75214c7d7e1acbf8fdf6f177d
[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" "6d8ff91be28fada797fd068c6419892659197dc75214c7d7e1acbf8fdf6f177d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d8ff91be28fada797fd068c6419892659197dc75214c7d7e1acbf8fdf6f177d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8ff91be28fada797fd068c6419892659197dc75214c7d7e1acbf8fdf6f177d", kill_on_drop: false }`
[INFO] [stdout] 6d8ff91be28fada797fd068c6419892659197dc75214c7d7e1acbf8fdf6f177d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--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] 4f4da3c371fb6171aa4a88099782a5bf4ac123a70cdf281d4330bcac9f132465
[INFO] running `Command { std: "docker" "start" "-a" "4f4da3c371fb6171aa4a88099782a5bf4ac123a70cdf281d4330bcac9f132465", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking document_tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `url::Url::into_string`: use Into<String>
[INFO] [stdout]   --> src/url.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         Url(url.into_string())
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `url::Url::into_string`: use Into<String>
[INFO] [stdout]   --> src/url.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         Url(url.into_string())
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.73s
[INFO] running `Command { std: "docker" "inspect" "4f4da3c371fb6171aa4a88099782a5bf4ac123a70cdf281d4330bcac9f132465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4da3c371fb6171aa4a88099782a5bf4ac123a70cdf281d4330bcac9f132465", kill_on_drop: false }`
[INFO] [stdout] 4f4da3c371fb6171aa4a88099782a5bf4ac123a70cdf281d4330bcac9f132465