[INFO] cloning repository https://github.com/steveklabnik/rust-docs [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steveklabnik/rust-docs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Frust-docs"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Frust-docs'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 81abec54cc31274c288bae774989f13991ed42b9 [INFO] checking steveklabnik/rust-docs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Frust-docs" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/steveklabnik/rust-docs on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/steveklabnik/rust-docs [INFO] finished tweaking git repo https://github.com/steveklabnik/rust-docs [INFO] tweaked toml for git repo https://github.com/steveklabnik/rust-docs written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/steveklabnik/rust-docs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 59442ec91c6db1f8586cb2f897ca14665b74a4d351de08466b3495d5c7ec9335 [INFO] running `"docker" "start" "-a" "59442ec91c6db1f8586cb2f897ca14665b74a4d351de08466b3495d5c7ec9335"` [INFO] [stderr] Checking libc v0.2.21 [INFO] [stderr] Checking log v0.3.7 [INFO] [stderr] Compiling gcc v0.3.45 [INFO] [stderr] Checking num-traits v0.1.37 [INFO] [stderr] Checking unicode-normalization v0.1.4 [INFO] [stderr] Checking futures v0.1.11 [INFO] [stderr] Checking byteorder v1.0.0 [INFO] [stderr] Compiling openssl v0.9.9 [INFO] [stderr] Checking lazy_static v0.2.4 [INFO] [stderr] Checking cfg-if v0.1.0 [INFO] [stderr] Checking foreign-types v0.2.0 [INFO] [stderr] Checking dtoa v0.4.1 [INFO] [stderr] Checking itoa v0.3.1 [INFO] [stderr] Checking serde v0.9.11 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking rustc-serialize v0.3.23 [INFO] [stderr] Checking slog v1.5.2 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking regex-syntax v0.4.0 [INFO] [stderr] Checking antidote v1.0.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking quick-error v1.1.0 [INFO] [stderr] Checking pest v0.3.3 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-1.5.2/src/ser.rs:228:6 [INFO] [stderr] | [INFO] [stderr] 120 | pub trait SyncSerialize: Send + Sync + 'static + Serialize {} [INFO] [stderr] | ---- required by this bound in `ser::SyncSerialize` [INFO] [stderr] ... [INFO] [stderr] 228 | impl SyncSerialize for fmt::Arguments<'static> {} [INFO] [stderr] | ^^^^^^^^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely [INFO] [stderr] | [INFO] [stderr] = help: within `core::fmt::Arguments<'static>`, the trait `core::marker::Sync` is not implemented for `core::fmt::Opaque` [INFO] [stderr] = note: required because it appears within the type `&'static core::fmt::Opaque` [INFO] [stderr] = note: required because it appears within the type `core::fmt::ArgumentV1<'static>` [INFO] [stderr] = note: required because it appears within the type `[core::fmt::ArgumentV1<'static>]` [INFO] [stderr] = note: required because it appears within the type `&'static [core::fmt::ArgumentV1<'static>]` [INFO] [stderr] = note: required because it appears within the type `core::fmt::Arguments<'static>` [INFO] [stderr] [INFO] [stderr] Checking unicode-bidi v0.2.5 [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0277`. [INFO] [stderr] Checking mime v0.2.3 [INFO] [stderr] error: could not compile `slog`. [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] [stderr] error: build failed [INFO] running `"docker" "inspect" "59442ec91c6db1f8586cb2f897ca14665b74a4d351de08466b3495d5c7ec9335"` [INFO] running `"docker" "rm" "-f" "59442ec91c6db1f8586cb2f897ca14665b74a4d351de08466b3495d5c7ec9335"` [INFO] [stdout] 59442ec91c6db1f8586cb2f897ca14665b74a4d351de08466b3495d5c7ec9335