[INFO] cloning repository https://github.com/berrycomp/mps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/berrycomp/mps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberrycomp%2Fmps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberrycomp%2Fmps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cc6be6c5db5669114431c506de53e1d4e09f3a1
[INFO] checking berrycomp/mps against try#ad93f57d532978d6739002a21bc66b45ed22f998 for pr-155418
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fberrycomp%2Fmps" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/berrycomp/mps
[INFO] finished tweaking git repo https://github.com/berrycomp/mps
[INFO] tweaked toml for git repo https://github.com/berrycomp/mps written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/berrycomp/mps on toolchain ad93f57d532978d6739002a21bc66b45ed22f998
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/berrycomp/mps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "fetch" "--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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 154434c50378527f6c13575e1584531dca3a27143184ba5b739b21639b073a22
[INFO] running `Command { std: "docker" "start" "-a" "154434c50378527f6c13575e1584531dca3a27143184ba5b739b21639b073a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "154434c50378527f6c13575e1584531dca3a27143184ba5b739b21639b073a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "154434c50378527f6c13575e1584531dca3a27143184ba5b739b21639b073a22", kill_on_drop: false }`
[INFO] [stdout] 154434c50378527f6c13575e1584531dca3a27143184ba5b739b21639b073a22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df4fd35b5ea2a1a0a59bff1da1f83ffc67469b4122c7799b3f2206ad3c2a61fd
[INFO] running `Command { std: "docker" "start" "-a" "df4fd35b5ea2a1a0a59bff1da1f83ffc67469b4122c7799b3f2206ad3c2a61fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
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[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
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[INFO] [stderr]    Compiling wasmer-derive v7.1.0
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[INFO] [stderr]     Checking raw-cpuid v11.6.0
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[INFO] [stderr]    Compiling cranelift-codegen v0.129.1
[INFO] [stderr]     Checking derive_more v2.1.1
[INFO] [stderr]     Checking wasmer-types v7.1.0
[INFO] [stderr]     Checking wasmer-vm v7.1.0
[INFO] [stderr]    Compiling wasmer v7.1.0
[INFO] [stderr]     Checking wasmer-compiler v7.1.0
[INFO] [stderr]     Checking wat v1.246.1
[INFO] [stderr]     Checking cranelift-frontend v0.129.1
[INFO] [stderr]     Checking wasmer-compiler-cranelift v7.1.0
[INFO] [stderr]     Checking mps v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `worker_class`
[INFO] [stdout]    --> src/scheduler/mod.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn worker_idle_policy(worker_class: CpuClass) -> WorkerIdlePolicy {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_worker_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/topology/detector.rs:328:6
[INFO] [stdout]     |
[INFO] [stdout] 328 |     (unsafe { std::arch::x86_64::__cpuid_count(7, 0) }.edx & (1 << 15)) != 0
[INFO] [stdout]     |      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `worker_class`
[INFO] [stdout]    --> src/scheduler/mod.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn worker_idle_policy(worker_class: CpuClass) -> WorkerIdlePolicy {
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_worker_class`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/topology/detector.rs:328:6
[INFO] [stdout]     |
[INFO] [stdout] 328 |     (unsafe { std::arch::x86_64::__cpuid_count(7, 0) }.edx & (1 << 15)) != 0
[INFO] [stdout]     |      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "df4fd35b5ea2a1a0a59bff1da1f83ffc67469b4122c7799b3f2206ad3c2a61fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4fd35b5ea2a1a0a59bff1da1f83ffc67469b4122c7799b3f2206ad3c2a61fd", kill_on_drop: false }`
[INFO] [stdout] df4fd35b5ea2a1a0a59bff1da1f83ffc67469b4122c7799b3f2206ad3c2a61fd