[INFO] crate dyplugin 0.2.0 is already in cache
[INFO] checking dyplugin-0.2.0 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate dyplugin 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dyplugin 0.2.0 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyplugin 0.2.0
[INFO] finished tweaking crates.io crate dyplugin 0.2.0
[INFO] tweaked toml for crates.io crate dyplugin 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecb1ff879ce2e137e423cb1f89f4fc823402142ee841d4c5d2ce391a157206cc
[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" "ecb1ff879ce2e137e423cb1f89f4fc823402142ee841d4c5d2ce391a157206cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecb1ff879ce2e137e423cb1f89f4fc823402142ee841d4c5d2ce391a157206cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb1ff879ce2e137e423cb1f89f4fc823402142ee841d4c5d2ce391a157206cc", kill_on_drop: false }`
[INFO] [stdout] ecb1ff879ce2e137e423cb1f89f4fc823402142ee841d4c5d2ce391a157206cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTFLAGS=--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" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0845d9099168f7802dc574abdaee57ef73820b89b95b51ea8e552aa50ea8e9ef
[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" "0845d9099168f7802dc574abdaee57ef73820b89b95b51ea8e552aa50ea8e9ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking dyplugin v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `load`
[INFO] [stdout]   --> src/lib.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 |               pub fn load<'a>(&mut self, lib: &str) -> ::std::io::Result<()> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |           plugin_registry!(
[INFO] [stdout]    |  _________-
[INFO] [stdout] 97 | |             fn is_empty(x: &str) -> bool;
[INFO] [stdout] 98 | |         );
[INFO] [stdout]    | |__________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unload`
[INFO] [stdout]   --> src/lib.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 |               pub fn unload(&mut self, name: &str) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |           plugin_registry!(
[INFO] [stdout]    |  _________-
[INFO] [stdout] 97 | |             fn is_empty(x: &str) -> bool;
[INFO] [stdout] 98 | |         );
[INFO] [stdout]    | |__________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "0845d9099168f7802dc574abdaee57ef73820b89b95b51ea8e552aa50ea8e9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0845d9099168f7802dc574abdaee57ef73820b89b95b51ea8e552aa50ea8e9ef", kill_on_drop: false }`
[INFO] [stdout] 0845d9099168f7802dc574abdaee57ef73820b89b95b51ea8e552aa50ea8e9ef