[INFO] fetching crate pledge 0.4.1...
[INFO] checking pledge-0.4.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate pledge 0.4.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pledge 0.4.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pledge 0.4.1
[INFO] finished tweaking crates.io crate pledge 0.4.1
[INFO] tweaked toml for crates.io crate pledge 0.4.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 6707e571f07c8501ba2c049e110846825914f65228d8858a6b901da66a4279bc
[INFO] running `Command { std: "docker" "start" "-a" "6707e571f07c8501ba2c049e110846825914f65228d8858a6b901da66a4279bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6707e571f07c8501ba2c049e110846825914f65228d8858a6b901da66a4279bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6707e571f07c8501ba2c049e110846825914f65228d8858a6b901da66a4279bc", kill_on_drop: false }`
[INFO] [stdout] 6707e571f07c8501ba2c049e110846825914f65228d8858a6b901da66a4279bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5126a636e8fd4523c87e647fd93113b2ecb50c8a7ca64a30b65d197d018c643b
[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" "5126a636e8fd4523c87e647fd93113b2ecb50c8a7ca64a30b65d197d018c643b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking pledge v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pledge`
[INFO] [stdout]    --> src/lib.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToPromiseString`
[INFO] [stdout]    --> src/lib.rs:122:34
[INFO] [stdout]     |
[INFO] [stdout] 122 |     use super::{pledge, Promise, ToPromiseString};
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "5126a636e8fd4523c87e647fd93113b2ecb50c8a7ca64a30b65d197d018c643b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5126a636e8fd4523c87e647fd93113b2ecb50c8a7ca64a30b65d197d018c643b", kill_on_drop: false }`
[INFO] [stdout] 5126a636e8fd4523c87e647fd93113b2ecb50c8a7ca64a30b65d197d018c643b