[INFO] fetching crate actori-rt 1.0.0...
[INFO] testing actori-rt-1.0.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate actori-rt 1.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate actori-rt 1.0.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actori-rt 1.0.0
[INFO] finished tweaking crates.io crate actori-rt 1.0.0
[INFO] tweaked toml for crates.io crate actori-rt 1.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 197e0da4267c8f29f333fd10fbb2df7a0a7f3cc037b42eecd040e5f8167718c8
[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" "197e0da4267c8f29f333fd10fbb2df7a0a7f3cc037b42eecd040e5f8167718c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "197e0da4267c8f29f333fd10fbb2df7a0a7f3cc037b42eecd040e5f8167718c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "197e0da4267c8f29f333fd10fbb2df7a0a7f3cc037b42eecd040e5f8167718c8", kill_on_drop: false }`
[INFO] [stdout] 197e0da4267c8f29f333fd10fbb2df7a0a7f3cc037b42eecd040e5f8167718c8
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--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] 5665b32b6781233e1a11949d1f3b815e0afc6f58c144422cbbbf72b48dcc2714
[INFO] running `Command { std: "docker" "start" "-a" "5665b32b6781233e1a11949d1f3b815e0afc6f58c144422cbbbf72b48dcc2714", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling copyless v0.1.5
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling actori-macros v0.1.1
[INFO] [stderr]    Compiling actori-threadpool v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling actori-rt v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:27
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(rust_2018_idioms, warnings)]
[INFO] [stdout]     |                           ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `actori-rt` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5665b32b6781233e1a11949d1f3b815e0afc6f58c144422cbbbf72b48dcc2714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5665b32b6781233e1a11949d1f3b815e0afc6f58c144422cbbbf72b48dcc2714", kill_on_drop: false }`
[INFO] [stdout] 5665b32b6781233e1a11949d1f3b815e0afc6f58c144422cbbbf72b48dcc2714