[INFO] cloning repository https://github.com/SirWindfield/showcase-once_cell-sync [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SirWindfield/showcase-once_cell-sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWindfield%2Fshowcase-once_cell-sync", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWindfield%2Fshowcase-once_cell-sync'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 33b5f75bc12867882c92f4fc24491a158e8f50ee [INFO] checking SirWindfield/showcase-once_cell-sync against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirWindfield%2Fshowcase-once_cell-sync" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SirWindfield/showcase-once_cell-sync on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SirWindfield/showcase-once_cell-sync [INFO] finished tweaking git repo https://github.com/SirWindfield/showcase-once_cell-sync [INFO] tweaked toml for git repo https://github.com/SirWindfield/showcase-once_cell-sync written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/SirWindfield/showcase-once_cell-sync already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded git2 v0.13.8 [INFO] [stderr] Downloaded libgit2-sys v0.12.9+1.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f42fc53737d20e86ee42c81809663906625bdf5a856ff37454746a161e4c1083 [INFO] running `Command { std: "docker" "start" "-a" "f42fc53737d20e86ee42c81809663906625bdf5a856ff37454746a161e4c1083", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f42fc53737d20e86ee42c81809663906625bdf5a856ff37454746a161e4c1083", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f42fc53737d20e86ee42c81809663906625bdf5a856ff37454746a161e4c1083", kill_on_drop: false }` [INFO] [stdout] f42fc53737d20e86ee42c81809663906625bdf5a856ff37454746a161e4c1083 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9b89bf3f67c94b6448ca629c48b73b98f8144c23e08d44fb478b79dfe47a8282 [INFO] running `Command { std: "docker" "start" "-a" "9b89bf3f67c94b6448ca629c48b73b98f8144c23e08d44fb478b79dfe47a8282", kill_on_drop: false }` [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking once_cell v1.4.0 [INFO] [stderr] Compiling jobserver v0.1.21 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Compiling cc v1.0.58 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling libssh2-sys v0.2.18 [INFO] [stderr] Compiling libgit2-sys v0.12.9+1.0.1 [INFO] [stderr] Checking git2 v0.13.8 [INFO] [stderr] Checking tmp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: `std::cell::UnsafeCell>` cannot be shared between threads safely [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | static REPO: OnceCell = OnceCell::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::cell::UnsafeCell>` cannot be shared between threads safely [INFO] [stdout] | [INFO] [stdout] = help: within `once_cell::unsync::OnceCell`, the trait `std::marker::Sync` is not implemented for `std::cell::UnsafeCell>` [INFO] [stdout] = note: required because it appears within the type `once_cell::unsync::OnceCell` [INFO] [stdout] = note: shared static variables must have a type that implements `Sync` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tmp`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0277]: `std::cell::UnsafeCell>` cannot be shared between threads safely [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | static REPO: OnceCell = OnceCell::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::cell::UnsafeCell>` cannot be shared between threads safely [INFO] [stdout] | [INFO] [stdout] = help: within `once_cell::unsync::OnceCell`, the trait `std::marker::Sync` is not implemented for `std::cell::UnsafeCell>` [INFO] [stdout] = note: required because it appears within the type `once_cell::unsync::OnceCell` [INFO] [stdout] = note: shared static variables must have a type that implements `Sync` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "9b89bf3f67c94b6448ca629c48b73b98f8144c23e08d44fb478b79dfe47a8282", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b89bf3f67c94b6448ca629c48b73b98f8144c23e08d44fb478b79dfe47a8282", kill_on_drop: false }` [INFO] [stdout] 9b89bf3f67c94b6448ca629c48b73b98f8144c23e08d44fb478b79dfe47a8282