[INFO] cloning repository https://github.com/lambdastackio/tokio-http2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lambdastackio/tokio-http2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdastackio%2Ftokio-http2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdastackio%2Ftokio-http2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fad8751ada3568d8cf4890d6f39ab3ee7d7c7301
[INFO] checking lambdastackio/tokio-http2 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdastackio%2Ftokio-http2" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lambdastackio/tokio-http2 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lambdastackio/tokio-http2
[INFO] finished tweaking git repo https://github.com/lambdastackio/tokio-http2
[INFO] tweaked toml for git repo https://github.com/lambdastackio/tokio-http2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lambdastackio/tokio-http2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.2.2
[INFO] [stderr]   Downloaded slog-syslog v0.7.0
[INFO] [stderr]   Downloaded slog-json v1.2.1
[INFO] [stderr]   Downloaded slog-term v1.3.5
[INFO] [stderr]   Downloaded tokio-tls v0.1.0
[INFO] [stderr]   Downloaded slog-envlogger v0.5.0
[INFO] [stderr]   Downloaded syslog v3.2.0
[INFO] [stderr]   Downloaded slog-serde v1.0.0-alpha9
[INFO] [stderr]   Downloaded spmc v0.2.1
[INFO] [stderr]   Downloaded slog-scope v0.2.2
[INFO] [stderr]   Downloaded slog v0.7.0
[INFO] [stderr]   Downloaded serde_json v0.8.5
[INFO] [stderr]   Downloaded slog v1.4.0
[INFO] [stderr]   Downloaded mio v0.6.2
[INFO] [stderr]   Downloaded tokio-core v0.1.3
[INFO] [stderr]   Downloaded lsio v0.1.16
[INFO] [stderr]   Downloaded futures v0.1.8
[INFO] [stderr]   Downloaded futures-cpupool v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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] 2856afd73d75aa28c0a448b7aef4f99449f5eb633576bd7f339083972ca02df7
[INFO] running `Command { std: "docker" "start" "-a" "2856afd73d75aa28c0a448b7aef4f99449f5eb633576bd7f339083972ca02df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2856afd73d75aa28c0a448b7aef4f99449f5eb633576bd7f339083972ca02df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2856afd73d75aa28c0a448b7aef4f99449f5eb633576bd7f339083972ca02df7", kill_on_drop: false }`
[INFO] [stdout] 2856afd73d75aa28c0a448b7aef4f99449f5eb633576bd7f339083972ca02df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7fd221df2cc81e1df28428b2fdb0f946053b179c72361f5cf0443788c83520d
[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" "f7fd221df2cc81e1df28428b2fdb0f946053b179c72361f5cf0443788c83520d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]     Checking slog v1.4.0
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling openssl v0.9.6
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]     Checking unicode-normalization v0.1.3
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking itoa 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" "f7fd221df2cc81e1df28428b2fdb0f946053b179c72361f5cf0443788c83520d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fd221df2cc81e1df28428b2fdb0f946053b179c72361f5cf0443788c83520d", kill_on_drop: false }`
[INFO] [stdout] f7fd221df2cc81e1df28428b2fdb0f946053b179c72361f5cf0443788c83520d