[INFO] fetching crate tc-executor-wasmtime 0.8.0...
[INFO] checking tc-executor-wasmtime-0.8.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate tc-executor-wasmtime 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tc-executor-wasmtime 0.8.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-executor-wasmtime 0.8.0
[INFO] finished tweaking crates.io crate tc-executor-wasmtime 0.8.0
[INFO] tweaked toml for crates.io crate tc-executor-wasmtime 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] e4941b8d7a7d241d1209bcf69e5d831fc4e492a6a2ff5a5130f7712cc9cc93f0
[INFO] running `Command { std: "docker" "start" "-a" "e4941b8d7a7d241d1209bcf69e5d831fc4e492a6a2ff5a5130f7712cc9cc93f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4941b8d7a7d241d1209bcf69e5d831fc4e492a6a2ff5a5130f7712cc9cc93f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4941b8d7a7d241d1209bcf69e5d831fc4e492a6a2ff5a5130f7712cc9cc93f0", kill_on_drop: false }`
[INFO] [stdout] e4941b8d7a7d241d1209bcf69e5d831fc4e492a6a2ff5a5130f7712cc9cc93f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 474fe69ec499c20bfea2138a0bddf6ab2a584c3673abbf8f9d8cc186d083ecd9
[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" "474fe69ec499c20bfea2138a0bddf6ab2a584c3673abbf8f9d8cc186d083ecd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.66.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
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[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking tetcore-std v2.1.2
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]    Compiling wasmtime-environ v0.19.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling tetsy-util-mem v0.9.1
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[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling wasmtime-runtime v0.19.0
[INFO] [stderr]     Checking wat v1.0.39
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.128
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[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
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[INFO] [stderr]    Compiling futures-macro v0.3.16
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[INFO] [stderr]    Compiling cranelift-codegen v0.66.0
[INFO] [stderr]     Checking tp-runtime-interface v2.1.2
[INFO] [stderr]     Checking tet-core v2.1.2
[INFO] [stderr]     Checking tp-allocator v2.1.2
[INFO] [stderr]     Checking tc-executor-common v0.8.0
[INFO] [stderr]     Checking cranelift-frontend v0.66.0
[INFO] [stderr]     Checking cranelift-native v0.66.0
[INFO] [stderr]     Checking cranelift-wasm v0.66.0
[INFO] [stderr]     Checking wasmtime-debug v0.19.0
[INFO] [stderr]     Checking wasmtime-obj v0.19.0
[INFO] [stderr]     Checking wasmtime-profiling v0.19.0
[INFO] [stderr]     Checking wasmtime-jit v0.19.0
[INFO] [stderr]     Checking wasmtime v0.19.0
[INFO] [stderr]     Checking tc-executor-wasmtime v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/instance_wrapper.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 |             &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let _ = &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/instance_wrapper.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 |             &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let _ = &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 51s
[INFO] running `Command { std: "docker" "inspect" "474fe69ec499c20bfea2138a0bddf6ab2a584c3673abbf8f9d8cc186d083ecd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474fe69ec499c20bfea2138a0bddf6ab2a584c3673abbf8f9d8cc186d083ecd9", kill_on_drop: false }`
[INFO] [stdout] 474fe69ec499c20bfea2138a0bddf6ab2a584c3673abbf8f9d8cc186d083ecd9