[INFO] fetching crate syswall 0.3.1...
[INFO] checking syswall-0.3.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate syswall 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate syswall 0.3.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syswall 0.3.1
[INFO] finished tweaking crates.io crate syswall 0.3.1
[INFO] tweaked toml for crates.io crate syswall 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6e45cbdfb68cb998862ed16d8a7066a8dfaddcc240e8f4f9261adee40f67321
[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" "b6e45cbdfb68cb998862ed16d8a7066a8dfaddcc240e8f4f9261adee40f67321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6e45cbdfb68cb998862ed16d8a7066a8dfaddcc240e8f4f9261adee40f67321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6e45cbdfb68cb998862ed16d8a7066a8dfaddcc240e8f4f9261adee40f67321", kill_on_drop: false }`
[INFO] [stdout] b6e45cbdfb68cb998862ed16d8a7066a8dfaddcc240e8f4f9261adee40f67321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] b423b31a7b0259d53687579ee4fa23997606b0417c07ed5c0ada1f7b9e207a20
[INFO] running `Command { std: "docker" "start" "-a" "b423b31a7b0259d53687579ee4fa23997606b0417c07ed5c0ada1f7b9e207a20", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking syswall v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "b423b31a7b0259d53687579ee4fa23997606b0417c07ed5c0ada1f7b9e207a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b423b31a7b0259d53687579ee4fa23997606b0417c07ed5c0ada1f7b9e207a20", kill_on_drop: false }`
[INFO] [stdout] b423b31a7b0259d53687579ee4fa23997606b0417c07ed5c0ada1f7b9e207a20