[INFO] fetching crate requiem-rt 1.0.0...
[INFO] checking requiem-rt-1.0.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate requiem-rt 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate requiem-rt 1.0.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate requiem-rt 1.0.0
[INFO] finished tweaking crates.io crate requiem-rt 1.0.0
[INFO] tweaked toml for crates.io crate requiem-rt 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miow v0.2.2
[INFO] [stderr]   Downloaded mio-uds v0.6.8
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.3
[INFO] [stderr]   Downloaded ws2_32-sys v0.2.1
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.3
[INFO] [stderr]   Downloaded copyless v0.1.5
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded winapi v0.2.8
[INFO] [stderr]   Downloaded threadpool v1.8.1
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded requiem-threadpool v0.3.1
[INFO] [stderr]   Downloaded requiem-macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb6e0c27cdeab959a8d193744e80ba6257f3a8e7e1ebb3b96fd5ea7ba254263e
[INFO] running `Command { std: "docker" "start" "-a" "eb6e0c27cdeab959a8d193744e80ba6257f3a8e7e1ebb3b96fd5ea7ba254263e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb6e0c27cdeab959a8d193744e80ba6257f3a8e7e1ebb3b96fd5ea7ba254263e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb6e0c27cdeab959a8d193744e80ba6257f3a8e7e1ebb3b96fd5ea7ba254263e", kill_on_drop: false }`
[INFO] [stdout] eb6e0c27cdeab959a8d193744e80ba6257f3a8e7e1ebb3b96fd5ea7ba254263e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783a1269b593f9b33e20520e6733615dfe2b793d2aad9f4b4082c2c73e9437af
[INFO] running `Command { std: "docker" "start" "-a" "783a1269b593f9b33e20520e6733615dfe2b793d2aad9f4b4082c2c73e9437af", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling requiem-macros v0.1.1
[INFO] [stderr]     Checking requiem-threadpool v0.3.1
[INFO] [stderr]     Checking requiem-rt v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: field `system` is never read
[INFO] [stdout]    --> src/builder.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct AsyncSystemRunner {
[INFO] [stdout]     |                   ----------------- field in this struct
[INFO] [stdout] 112 |     stop: Receiver<i32>,
[INFO] [stdout] 113 |     system: System,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AsyncSystemRunner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 `system` is never read
[INFO] [stdout]    --> src/builder.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct SystemRunner {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 153 |     system: System,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SystemRunner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `system` is never read
[INFO] [stdout]    --> src/builder.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct AsyncSystemRunner {
[INFO] [stdout]     |                   ----------------- field in this struct
[INFO] [stdout] 112 |     stop: Receiver<i32>,
[INFO] [stdout] 113 |     system: System,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AsyncSystemRunner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 `system` is never read
[INFO] [stdout]    --> src/builder.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct SystemRunner {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 153 |     system: System,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SystemRunner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `requiem-rt` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `requiem-rt` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "783a1269b593f9b33e20520e6733615dfe2b793d2aad9f4b4082c2c73e9437af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783a1269b593f9b33e20520e6733615dfe2b793d2aad9f4b4082c2c73e9437af", kill_on_drop: false }`
[INFO] [stdout] 783a1269b593f9b33e20520e6733615dfe2b793d2aad9f4b4082c2c73e9437af