[INFO] fetching crate xrust 0.2.0...
[INFO] checking xrust-0.2.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate xrust 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate xrust 0.2.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xrust 0.2.0
[INFO] finished tweaking crates.io crate xrust 0.2.0
[INFO] tweaked toml for crates.io crate xrust 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b351d97c7f8dfdf7a26134afd0cbd0e53fe3216cd33b3b638153ce0fc9776f39
[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" "b351d97c7f8dfdf7a26134afd0cbd0e53fe3216cd33b3b638153ce0fc9776f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b351d97c7f8dfdf7a26134afd0cbd0e53fe3216cd33b3b638153ce0fc9776f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b351d97c7f8dfdf7a26134afd0cbd0e53fe3216cd33b3b638153ce0fc9776f39", kill_on_drop: false }`
[INFO] [stdout] b351d97c7f8dfdf7a26134afd0cbd0e53fe3216cd33b3b638153ce0fc9776f39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fb58f555e5544070410286b0ad31757c59a7bc304b44d6c159bb0a9731446c7
[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" "1fb58f555e5544070410286b0ad31757c59a7bc304b44d6c159bb0a9731446c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking trees v0.4.2
[INFO] [stderr]     Checking lexers v0.1.3
[INFO] [stderr]    Compiling decimal v2.1.0
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking xrust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Tree`
[INFO] [stdout]   --> src/item.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use trees::{Tree, RcNode};
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/xpath.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DynamicContext`, `StaticContext`, `evaluate`, `static_analysis`
[INFO] [stdout]   --> src/xpath.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     DynamicContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 25 |     evaluate,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     static_analysis,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     StaticContext,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `decimal::d128`
[INFO] [stdout]  --> src/evaluate.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use decimal::d128;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `object`
[INFO] [stdout]   --> src/evaluate.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 | use json::{JsonValue, object};
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/xslt.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `name`
[INFO] [stdout]   --> src/parsecommon.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn name(input: &str) -> IResult<&str, &str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_namechar`
[INFO] [stdout]   --> src/parsecommon.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn is_namechar(ch: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ncnamechar`
[INFO] [stdout]   --> src/parsecommon.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn ncnamechar(input: &str) -> IResult<&str, &str> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `namestartchar`
[INFO] [stdout]   --> src/parsecommon.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn namestartchar(input: &str) -> IResult<&str, &str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_namestartchar`
[INFO] [stdout]   --> src/parsecommon.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn is_namestartchar(ch: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> src/evaluate.rs:1554:6
[INFO] [stdout]      |
[INFO] [stdout] 1554 |   fn new(n: String, t: String) -> Param {
[INFO] [stdout]      |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.59s
[INFO] running `Command { std: "docker" "inspect" "1fb58f555e5544070410286b0ad31757c59a7bc304b44d6c159bb0a9731446c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb58f555e5544070410286b0ad31757c59a7bc304b44d6c159bb0a9731446c7", kill_on_drop: false }`
[INFO] [stdout] 1fb58f555e5544070410286b0ad31757c59a7bc304b44d6c159bb0a9731446c7