[INFO] cloning repository https://github.com/steveklabnik/rust-docs
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Frust-docs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81abec54cc31274c288bae774989f13991ed42b9
[INFO] testing steveklabnik/rust-docs against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Frust-docs" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steveklabnik/rust-docs on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-15/source/Cargo.toml
[INFO] crate git repo https://github.com/steveklabnik/rust-docs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/steveklabnik/sparkles`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v1.1.0
[INFO] [stderr]   Downloaded serde v0.9.11
[INFO] [stderr]   Downloaded base64 v0.4.0
[INFO] [stderr]   Downloaded slog-extra v0.1.2
[INFO] [stderr]   Downloaded slog-stream v1.2.0
[INFO] [stderr]   Downloaded hyper v0.10.5
[INFO] [stderr]   Downloaded handlebars v0.25.1
[INFO] [stderr]   Downloaded slog v1.5.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.9
[INFO] [stderr]   Downloaded futures-cpupool v0.1.4
[INFO] [stderr]   Downloaded slog-term v1.5.0
[INFO] [stderr]   Downloaded security-framework v0.1.12
[INFO] [stderr]   Downloaded openssl v0.9.9
[INFO] [stderr]   Downloaded security-framework-sys v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff37fcf4daddb3f065a0a28ec6c18b70cee7b59ecda43666e91082abc869a888
[INFO] running `Command { std: "docker" "start" "-a" "ff37fcf4daddb3f065a0a28ec6c18b70cee7b59ecda43666e91082abc869a888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff37fcf4daddb3f065a0a28ec6c18b70cee7b59ecda43666e91082abc869a888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff37fcf4daddb3f065a0a28ec6c18b70cee7b59ecda43666e91082abc869a888", kill_on_drop: false }`
[INFO] [stdout] ff37fcf4daddb3f065a0a28ec6c18b70cee7b59ecda43666e91082abc869a888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45398dd90af997bdc5247838cc677df97e94df18346610dce958b6a79872dc2d
[INFO] running `Command { std: "docker" "start" "-a" "45398dd90af997bdc5247838cc677df97e94df18346610dce958b6a79872dc2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling futures v0.1.11
[INFO] [stderr]    Compiling openssl v0.9.9
[INFO] [stderr]    Compiling lazy_static v0.2.4
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling serde v0.9.11
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling slog v1.5.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling crossbeam v0.2.10
[INFO] [stderr]    Compiling quick-error v1.1.0
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling base64 v0.4.0
[INFO] [stderr]    Compiling mime v0.2.3
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num_cpus v1.3.0
[INFO] [stdout] error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-1.5.2/src/ser.rs:228:6
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub trait SyncSerialize: Send + Sync + 'static + Serialize {}
[INFO] [stdout]     |                                 ---- required by this bound in `SyncSerialize`
[INFO] [stdout] ...
[INFO] [stdout] 228 | impl SyncSerialize for fmt::Arguments<'static> {}
[INFO] [stdout]     |      ^^^^^^^^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `Arguments<'static>`, the trait `Sync` is not implemented for `core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `&'static core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `ArgumentV1<'static>`
[INFO] [stdout]     = note: required because it appears within the type `[ArgumentV1<'static>]`
[INFO] [stdout]     = note: required because it appears within the type `&'static [ArgumentV1<'static>]`
[INFO] [stdout]     = note: required because it appears within the type `Arguments<'static>`
[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]    Compiling net2 v0.2.27
[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 `Command { std: "docker" "inspect" "45398dd90af997bdc5247838cc677df97e94df18346610dce958b6a79872dc2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45398dd90af997bdc5247838cc677df97e94df18346610dce958b6a79872dc2d", kill_on_drop: false }`
[INFO] [stdout] 45398dd90af997bdc5247838cc677df97e94df18346610dce958b6a79872dc2d