[INFO] cloning repository https://github.com/hellpepper/Dev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hellpepper/Dev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellpepper%2FDev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellpepper%2FDev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d793fbfdca84c34f8f14a668bc0c8cd28288398
[INFO] checking hellpepper/Dev against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellpepper%2FDev" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hellpepper/Dev on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hellpepper/Dev
[INFO] finished tweaking git repo https://github.com/hellpepper/Dev
[INFO] tweaked toml for git repo https://github.com/hellpepper/Dev written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/hellpepper/Dev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kernel32-sys v0.1.4
[INFO] [stderr]   Downloaded isatty v0.1.3
[INFO] [stderr]   Downloaded slog-term v1.3.4
[INFO] [stderr]   Downloaded slog v1.4.0
[INFO] [stderr]   Downloaded winreg v0.3.5
[INFO] [stderr]   Downloaded clap v2.20.0
[INFO] [stderr]   Downloaded slog-extra v0.1.1
[INFO] [stderr]   Downloaded slog-stdlog v1.1.0
[INFO] [stderr]   Downloaded slog-stream v1.2.0
[INFO] [stderr]   Downloaded bzip2 v0.3.0
[INFO] [stderr]   Downloaded msdos_time v0.1.4
[INFO] [stderr]   Downloaded slog-atomic v0.4.3
[INFO] [stderr]   Downloaded mozrunner v0.3.3
[INFO] [stderr]   Downloaded mozprofile v0.2.0
[INFO] [stderr]   Downloaded webdriver v0.18.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.0.1
[INFO] [stderr]   Downloaded bzip2-sys v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] c9fdabfee3b7adfeaf79510688f454eac9d0bc9dee17e7f2755bb0e9a9d35b98
[INFO] running `Command { std: "docker" "start" "-a" "c9fdabfee3b7adfeaf79510688f454eac9d0bc9dee17e7f2755bb0e9a9d35b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9fdabfee3b7adfeaf79510688f454eac9d0bc9dee17e7f2755bb0e9a9d35b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9fdabfee3b7adfeaf79510688f454eac9d0bc9dee17e7f2755bb0e9a9d35b98", kill_on_drop: false }`
[INFO] [stdout] c9fdabfee3b7adfeaf79510688f454eac9d0bc9dee17e7f2755bb0e9a9d35b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 443dec40d1711d4f1d64c1ff1626d7f7982b140141dd8b55db5c1e799f6fac73
[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" "443dec40d1711d4f1d64c1ff1626d7f7982b140141dd8b55db5c1e799f6fac73", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking matches v0.1.4
[INFO] [stderr]     Checking slog v1.4.0
[INFO] [stderr]     Checking unicode-normalization v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking httparse v1.2.1
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking podio v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking unicode-segmentation v1.0.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unicode-bidi v0.2.4
[INFO] [stderr]     Checking unreachable v0.1.1
[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-1.4.0/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] 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" "443dec40d1711d4f1d64c1ff1626d7f7982b140141dd8b55db5c1e799f6fac73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443dec40d1711d4f1d64c1ff1626d7f7982b140141dd8b55db5c1e799f6fac73", kill_on_drop: false }`
[INFO] [stdout] 443dec40d1711d4f1d64c1ff1626d7f7982b140141dd8b55db5c1e799f6fac73