[INFO] cloning repository https://github.com/reez12g/toyrcu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reez12g/toyrcu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freez12g%2Ftoyrcu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freez12g%2Ftoyrcu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bebac74f7d3f862bbd508ba3aa0c130c2d3acaba
[INFO] building reez12g/toyrcu against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freez12g%2Ftoyrcu" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/reez12g/toyrcu
[INFO] finished tweaking git repo https://github.com/reez12g/toyrcu
[INFO] tweaked toml for git repo https://github.com/reez12g/toyrcu written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/reez12g/toyrcu on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/reez12g/toyrcu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 697b4ec0c0dd60f16537e10075f84e9f747de111d1f9d86b0db37a4948c38c1d
[INFO] running `Command { std: "docker" "start" "-a" "697b4ec0c0dd60f16537e10075f84e9f747de111d1f9d86b0db37a4948c38c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "697b4ec0c0dd60f16537e10075f84e9f747de111d1f9d86b0db37a4948c38c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "697b4ec0c0dd60f16537e10075f84e9f747de111d1f9d86b0db37a4948c38c1d", kill_on_drop: false }`
[INFO] [stdout] 697b4ec0c0dd60f16537e10075f84e9f747de111d1f9d86b0db37a4948c38c1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bd467f2e0ae07c9712aace23d317880ef7092123a9443f3ed07b43b7ea3b2e2
[INFO] running `Command { std: "docker" "start" "-a" "3bd467f2e0ae07c9712aace23d317880ef7092123a9443f3ed07b43b7ea3b2e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling toyrcu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `clean` is never used
[INFO] [stdout]    --> src/rcu.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl<'a, T: Clone + PartialEq> Rcu<T> {
[INFO] [stdout]     | ------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 212 |     pub fn clean(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `Command { std: "docker" "inspect" "3bd467f2e0ae07c9712aace23d317880ef7092123a9443f3ed07b43b7ea3b2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd467f2e0ae07c9712aace23d317880ef7092123a9443f3ed07b43b7ea3b2e2", kill_on_drop: false }`
[INFO] [stdout] 3bd467f2e0ae07c9712aace23d317880ef7092123a9443f3ed07b43b7ea3b2e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c70b70e3f336f3893886d151c02f6e949b05855ae0328d495f75bfd7c27fbc8d
[INFO] running `Command { std: "docker" "start" "-a" "c70b70e3f336f3893886d151c02f6e949b05855ae0328d495f75bfd7c27fbc8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling toyrcu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "c70b70e3f336f3893886d151c02f6e949b05855ae0328d495f75bfd7c27fbc8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c70b70e3f336f3893886d151c02f6e949b05855ae0328d495f75bfd7c27fbc8d", kill_on_drop: false }`
[INFO] [stdout] c70b70e3f336f3893886d151c02f6e949b05855ae0328d495f75bfd7c27fbc8d