[INFO] cloning repository https://github.com/sourgrasses/pinguin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sourgrasses/pinguin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourgrasses%2Fpinguin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourgrasses%2Fpinguin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c955bdcade03c720b422b8ce5e4d7bebe4cf869
[INFO] checking sourgrasses/pinguin against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourgrasses%2Fpinguin" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sourgrasses/pinguin on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sourgrasses/pinguin
[INFO] finished tweaking git repo https://github.com/sourgrasses/pinguin
[INFO] tweaked toml for git repo https://github.com/sourgrasses/pinguin written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/sourgrasses/pinguin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3311d6320305d37590b57686b85a5c049ec1fa5e8a56d0d2cb0a4e806cc0621
[INFO] running `Command { std: "docker" "start" "-a" "e3311d6320305d37590b57686b85a5c049ec1fa5e8a56d0d2cb0a4e806cc0621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3311d6320305d37590b57686b85a5c049ec1fa5e8a56d0d2cb0a4e806cc0621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3311d6320305d37590b57686b85a5c049ec1fa5e8a56d0d2cb0a4e806cc0621", kill_on_drop: false }`
[INFO] [stdout] e3311d6320305d37590b57686b85a5c049ec1fa5e8a56d0d2cb0a4e806cc0621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05a3e85854b526c4c2a7446b2f60cf2840d5a6b643862efa37cdb7491acc81f5
[INFO] running `Command { std: "docker" "start" "-a" "05a3e85854b526c4c2a7446b2f60cf2840d5a6b643862efa37cdb7491acc81f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.2
[INFO] [stderr]     Checking pnet_base v0.21.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling pnet v0.21.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling semver v0.9.0
[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" "05a3e85854b526c4c2a7446b2f60cf2840d5a6b643862efa37cdb7491acc81f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a3e85854b526c4c2a7446b2f60cf2840d5a6b643862efa37cdb7491acc81f5", kill_on_drop: false }`
[INFO] [stdout] 05a3e85854b526c4c2a7446b2f60cf2840d5a6b643862efa37cdb7491acc81f5