[INFO] fetching crate tc-executor-wasmtime 0.8.0...
[INFO] testing tc-executor-wasmtime-0.8.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate tc-executor-wasmtime 0.8.0 into /workspace/builds/worker-3-tc1/source
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tc-executor-wasmtime 0.8.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 319 packages to latest compatible versions
[INFO] [stderr]       Adding tetsy-wasm v0.41.0 (available: v0.42.1)
[INFO] [stderr]       Adding twasm-utils v0.16.0 (available: v0.17.0)
[INFO] [stderr]       Adding wasmtime v0.19.0 (available: v36.0.2)
[INFO] [stderr]       Adding zeroize v1.3.0 (available: v1.8.1)
[INFO] [stderr]       Adding zstd-sys v1.4.18+zstd.1.4.7 (available: v1.6.3+zstd.1.5.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twasm-utils v0.16.0
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[INFO] [stdout] de6b4b4d48e4c501216c49980ea04e6c4f2bc4bc98ea4fac668326f4581be280
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[INFO] running `Command { std: "docker" "inspect" "de6b4b4d48e4c501216c49980ea04e6c4f2bc4bc98ea4fac668326f4581be280", kill_on_drop: false }`
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[INFO] [stdout] a57f1acede668621e744a29c641672bc1351b837742109133c6cc26f3ced8d76
[INFO] running `Command { std: "docker" "start" "-a" "a57f1acede668621e744a29c641672bc1351b837742109133c6cc26f3ced8d76", kill_on_drop: false }`
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[INFO] [stderr]    Compiling wasmtime v0.19.0
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0, wasmparser v0.57.0, wasmparser v0.59.0, wasmtime-debug v0.19.0, wasmtime-environ v0.19.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a57f1acede668621e744a29c641672bc1351b837742109133c6cc26f3ced8d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a57f1acede668621e744a29c641672bc1351b837742109133c6cc26f3ced8d76", kill_on_drop: false }`
[INFO] [stdout] a57f1acede668621e744a29c641672bc1351b837742109133c6cc26f3ced8d76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e6ac40657486939aefc8a2fd607e7a2b41b8cae4a4e3f3d4ff8dd29f6971d67
[INFO] running `Command { std: "docker" "start" "-a" "6e6ac40657486939aefc8a2fd607e7a2b41b8cae4a4e3f3d4ff8dd29f6971d67", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.5.0
[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)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0, wasmparser v0.57.0, wasmparser v0.59.0, wasmtime-debug v0.19.0, wasmtime-environ v0.19.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "6e6ac40657486939aefc8a2fd607e7a2b41b8cae4a4e3f3d4ff8dd29f6971d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6ac40657486939aefc8a2fd607e7a2b41b8cae4a4e3f3d4ff8dd29f6971d67", kill_on_drop: false }`
[INFO] [stdout] 6e6ac40657486939aefc8a2fd607e7a2b41b8cae4a4e3f3d4ff8dd29f6971d67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a50f9dbf0056587c8ed45938ae5b9af1f25d7f4ceeb2ea222992ec94ebd49e8
[INFO] running `Command { std: "docker" "start" "-a" "6a50f9dbf0056587c8ed45938ae5b9af1f25d7f4ceeb2ea222992ec94ebd49e8", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/instance_wrapper.rs:388:4
[INFO] [stderr]     |
[INFO] [stderr] 388 |             &mut memory[range].copy_from_slice(data);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 388 |             let _ = &mut memory[range].copy_from_slice(data);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `tc-executor-wasmtime` (lib) generated 1 warning
[INFO] [stderr] warning: `tc-executor-wasmtime` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0, wasmparser v0.57.0, wasmparser v0.59.0, wasmtime-debug v0.19.0, wasmtime-environ v0.19.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tc_executor_wasmtime-e4862ee3e8d2b937)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tc_executor_wasmtime
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a50f9dbf0056587c8ed45938ae5b9af1f25d7f4ceeb2ea222992ec94ebd49e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a50f9dbf0056587c8ed45938ae5b9af1f25d7f4ceeb2ea222992ec94ebd49e8", kill_on_drop: false }`
[INFO] [stdout] 6a50f9dbf0056587c8ed45938ae5b9af1f25d7f4ceeb2ea222992ec94ebd49e8