[INFO] fetching crate greentask 0.2.0...
[INFO] checking greentask-0.2.0 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate greentask 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate greentask 0.2.0 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate greentask 0.2.0
[INFO] finished tweaking crates.io crate greentask 0.2.0
[INFO] tweaked toml for crates.io crate greentask 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded context v1.0.1
[INFO] [stderr]   Downloaded coroutine v0.8.0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] 2c754b8689fb8ed5a985984decc98a8a4833aee603ae3e6cac8711d68966097b
[INFO] running `Command { std: "docker" "start" "-a" "2c754b8689fb8ed5a985984decc98a8a4833aee603ae3e6cac8711d68966097b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c754b8689fb8ed5a985984decc98a8a4833aee603ae3e6cac8711d68966097b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c754b8689fb8ed5a985984decc98a8a4833aee603ae3e6cac8711d68966097b", kill_on_drop: false }`
[INFO] [stdout] 2c754b8689fb8ed5a985984decc98a8a4833aee603ae3e6cac8711d68966097b
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] 1d70cf1033541f1d6e801374b4b29a61ae3e858c60c93cbb978c2cf948e04dd1
[INFO] running `Command { std: "docker" "start" "-a" "1d70cf1033541f1d6e801374b4b29a61ae3e858c60c93cbb978c2cf948e04dd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling context v1.0.1
[INFO] [stderr]     Checking coroutine v0.8.0
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/coroutine-0.8.0/src/asymmetric.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::boxed::FnBox;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coroutine`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1d70cf1033541f1d6e801374b4b29a61ae3e858c60c93cbb978c2cf948e04dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d70cf1033541f1d6e801374b4b29a61ae3e858c60c93cbb978c2cf948e04dd1", kill_on_drop: false }`
[INFO] [stdout] 1d70cf1033541f1d6e801374b4b29a61ae3e858c60c93cbb978c2cf948e04dd1