[INFO] fetching crate requiem-rt 1.0.0...
[INFO] checking requiem-rt-1.0.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate requiem-rt 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate requiem-rt 1.0.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--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-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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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] 153a76e0654cae7c738e70849b2150663d3d968761c29555e681408c5d0699eb
[INFO] running `Command { std: "docker" "start" "-a" "153a76e0654cae7c738e70849b2150663d3d968761c29555e681408c5d0699eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "153a76e0654cae7c738e70849b2150663d3d968761c29555e681408c5d0699eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "153a76e0654cae7c738e70849b2150663d3d968761c29555e681408c5d0699eb", kill_on_drop: false }`
[INFO] [stdout] 153a76e0654cae7c738e70849b2150663d3d968761c29555e681408c5d0699eb
[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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ed3416e5c4ec706d0d7d330e8b6f06fd03ebd8323fcf644d1923ad3a6a13ea6
[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" "2ed3416e5c4ec706d0d7d330e8b6f06fd03ebd8323fcf644d1923ad3a6a13ea6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling requiem-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking requiem-threadpool v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking requiem-rt v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `name`
[INFO] [stdout]   --> src/builder.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     name: Cow<'static, str>,
[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: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `requiem-rt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: field is never read: `name`
[INFO] [stdout]   --> src/builder.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     name: Cow<'static, str>,
[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: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2ed3416e5c4ec706d0d7d330e8b6f06fd03ebd8323fcf644d1923ad3a6a13ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ed3416e5c4ec706d0d7d330e8b6f06fd03ebd8323fcf644d1923ad3a6a13ea6", kill_on_drop: false }`
[INFO] [stdout] 2ed3416e5c4ec706d0d7d330e8b6f06fd03ebd8323fcf644d1923ad3a6a13ea6