[INFO] cloning repository https://github.com/danielakhterov/file-browser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielakhterov/file-browser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielakhterov%2Ffile-browser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielakhterov%2Ffile-browser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5745ed9f0cf18c1c9ea3f463f18a87324694e827
[INFO] checking danielakhterov/file-browser against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielakhterov%2Ffile-browser" "/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/danielakhterov/file-browser on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielakhterov/file-browser
[INFO] finished tweaking git repo https://github.com/danielakhterov/file-browser
[INFO] tweaked toml for git repo https://github.com/danielakhterov/file-browser written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/danielakhterov/file-browser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v4.1.1
[INFO] [stderr]   Downloaded rand_os v0.1.0
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded memchr v2.1.2
[INFO] [stderr]   Downloaded serde_json v1.0.34
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded serde-hjson v0.8.2
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.2
[INFO] [stderr]   Downloaded tokio-udp v0.1.3
[INFO] [stderr]   Downloaded number_prefix v0.2.8
[INFO] [stderr]   Downloaded config v0.9.2
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded yaml-rust v0.4.2
[INFO] [stderr]   Downloaded tokio-uds v0.2.5
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.12
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.4
[INFO] [stderr]   Downloaded rand v0.6.3
[INFO] [stderr]   Downloaded tokio-fs v0.1.5
[INFO] [stderr]   Downloaded serde v1.0.85
[INFO] [stderr]   Downloaded ncurses v5.98.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e4b96b628758dbffed56b4080ee45b9d346720267ba01ada63d5c6fcae719b2
[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" "6e4b96b628758dbffed56b4080ee45b9d346720267ba01ada63d5c6fcae719b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e4b96b628758dbffed56b4080ee45b9d346720267ba01ada63d5c6fcae719b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4b96b628758dbffed56b4080ee45b9d346720267ba01ada63d5c6fcae719b2", kill_on_drop: false }`
[INFO] [stdout] 6e4b96b628758dbffed56b4080ee45b9d346720267ba01ada63d5c6fcae719b2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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] 4f81ec3f791ed7d9ca48494848bb50c05e01a00dcf51623ad3c08d29e7ea0f9e
[INFO] running `Command { std: "docker" "start" "-a" "4f81ec3f791ed7d9ca48494848bb50c05e01a00dcf51623ad3c08d29e7ea0f9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]    Compiling rand v0.6.3
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]    Compiling ncurses v5.98.0
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking rand_os v0.1.0
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stdout] error[E0432]: unresolved import `core::task::LocalWaker`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.12/src/future/future_obj.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     task::{LocalWaker, Poll},
[INFO] [stdout]   |            ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::task::LocalWaker`, `core::task::UnsafeWake`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.12/src/task/mod.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use core::task::{Poll, Waker, LocalWaker, UnsafeWake};
[INFO] [stdout]   |                                   ^^^^^^^^^^  ^^^^^^^^^^ no `UnsafeWake` in `task`
[INFO] [stdout]   |                                   |
[INFO] [stdout]   |                                   no `LocalWaker` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::task::local_waker`, `std::task::local_waker_from_nonlocal`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.12/src/task/mod.rs:10:27
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use std::task::{Wake, local_waker, local_waker_from_nonlocal};
[INFO] [stdout]    |                           ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^ no `local_waker_from_nonlocal` in `task`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           no `local_waker` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-core-preview` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4f81ec3f791ed7d9ca48494848bb50c05e01a00dcf51623ad3c08d29e7ea0f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f81ec3f791ed7d9ca48494848bb50c05e01a00dcf51623ad3c08d29e7ea0f9e", kill_on_drop: false }`
[INFO] [stdout] 4f81ec3f791ed7d9ca48494848bb50c05e01a00dcf51623ad3c08d29e7ea0f9e