[INFO] fetching crate selene-lib 0.8.0...
[INFO] checking selene-lib-0.8.0 against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] extracting crate selene-lib 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate selene-lib 0.8.0 on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate selene-lib 0.8.0
[INFO] finished tweaking crates.io crate selene-lib 0.8.0
[INFO] tweaked toml for crates.io crate selene-lib 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df092e25330f6f2348783b27aad5d01cd0f8c44f1df48004d68a41352d03b158
[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" "df092e25330f6f2348783b27aad5d01cd0f8c44f1df48004d68a41352d03b158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df092e25330f6f2348783b27aad5d01cd0f8c44f1df48004d68a41352d03b158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df092e25330f6f2348783b27aad5d01cd0f8c44f1df48004d68a41352d03b158", kill_on_drop: false }`
[INFO] [stdout] df092e25330f6f2348783b27aad5d01cd0f8c44f1df48004d68a41352d03b158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a644bf1ddec05c7dbeec7cb31bdced1c4d8629ef34ad083d276ce90489a70bfc
[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" "a644bf1ddec05c7dbeec7cb31bdced1c4d8629ef34ad083d276ce90489a70bfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking codespan v0.4.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking codespan-reporting v0.4.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling full_moon_derive v0.5.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking full_moon v0.6.2
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking rbx_dom_weak v1.10.1
[INFO] [stderr]     Checking rbx_reflection v3.3.418
[INFO] [stderr]     Checking selene-lib v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/rules/test_util.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         { Path::new(env!("CARGO_MANIFEST_DIR")).join("tests").join("lints") };
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` 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 22s
[INFO] running `Command { std: "docker" "inspect" "a644bf1ddec05c7dbeec7cb31bdced1c4d8629ef34ad083d276ce90489a70bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a644bf1ddec05c7dbeec7cb31bdced1c4d8629ef34ad083d276ce90489a70bfc", kill_on_drop: false }`
[INFO] [stdout] a644bf1ddec05c7dbeec7cb31bdced1c4d8629ef34ad083d276ce90489a70bfc