[INFO] fetching crate wu-diff 0.1.2...
[INFO] checking wu-diff-0.1.2 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate wu-diff 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wu-diff 0.1.2 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wu-diff 0.1.2
[INFO] finished tweaking crates.io crate wu-diff 0.1.2
[INFO] tweaked toml for crates.io crate wu-diff 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate wu-diff 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded cfg-if v0.1.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 996f99c97c31fb3fb972be1726840f459b6bf96b6c7f89d35c85717e283e5f2e
[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" "996f99c97c31fb3fb972be1726840f459b6bf96b6c7f89d35c85717e283e5f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996f99c97c31fb3fb972be1726840f459b6bf96b6c7f89d35c85717e283e5f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996f99c97c31fb3fb972be1726840f459b6bf96b6c7f89d35c85717e283e5f2e", kill_on_drop: false }`
[INFO] [stdout] 996f99c97c31fb3fb972be1726840f459b6bf96b6c7f89d35c85717e283e5f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fabcb59cdf6bccbaa98e2d8f875ad84bdfef7f1cec54046f9ae0cce45920786a
[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" "fabcb59cdf6bccbaa98e2d8f875ad84bdfef7f1cec54046f9ae0cce45920786a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking serde v1.0.42
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking wu-diff v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking itertools-num v0.1.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking criterion-plot v0.2.3
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking criterion-stats v0.2.3
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking simplelog v0.5.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.42
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking handlebars v0.31.0
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking criterion v0.2.3
[INFO] [stdout] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "fabcb59cdf6bccbaa98e2d8f875ad84bdfef7f1cec54046f9ae0cce45920786a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fabcb59cdf6bccbaa98e2d8f875ad84bdfef7f1cec54046f9ae0cce45920786a", kill_on_drop: false }`
[INFO] [stdout] fabcb59cdf6bccbaa98e2d8f875ad84bdfef7f1cec54046f9ae0cce45920786a