[INFO] fetching crate evmc-vm 7.4.0...
[INFO] testing evmc-vm-7.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate evmc-vm 7.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate evmc-vm 7.4.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evmc-vm 7.4.0
[INFO] finished tweaking crates.io crate evmc-vm 7.4.0
[INFO] tweaked toml for crates.io crate evmc-vm 7.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e39cd0c49e754014b5eee02e0128565999050c78b1e88ca5daa53c8144c5aa19
[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" "e39cd0c49e754014b5eee02e0128565999050c78b1e88ca5daa53c8144c5aa19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39cd0c49e754014b5eee02e0128565999050c78b1e88ca5daa53c8144c5aa19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39cd0c49e754014b5eee02e0128565999050c78b1e88ca5daa53c8144c5aa19", kill_on_drop: false }`
[INFO] [stdout] e39cd0c49e754014b5eee02e0128565999050c78b1e88ca5daa53c8144c5aa19
[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=warn" "-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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6b9d66592e29bdbf6adc44ba1184fb45e248e16a3ec8fa38a3c2b4774d5b8e1
[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" "f6b9d66592e29bdbf6adc44ba1184fb45e248e16a3ec8fa38a3c2b4774d5b8e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling evmc-sys v7.4.0
[INFO] [stderr]    Compiling evmc-vm v7.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.81s
[INFO] running `Command { std: "docker" "inspect" "f6b9d66592e29bdbf6adc44ba1184fb45e248e16a3ec8fa38a3c2b4774d5b8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b9d66592e29bdbf6adc44ba1184fb45e248e16a3ec8fa38a3c2b4774d5b8e1", kill_on_drop: false }`
[INFO] [stdout] f6b9d66592e29bdbf6adc44ba1184fb45e248e16a3ec8fa38a3c2b4774d5b8e1
[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=warn" "-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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80e677e1db5446c4fae89b4fa4fdb7ff928181a5ca850f20f40bbff926812459
[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" "80e677e1db5446c4fae89b4fa4fdb7ff928181a5ca850f20f40bbff926812459", kill_on_drop: false }`
[INFO] [stderr]    Compiling evmc-vm v7.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:820:13
[INFO] [stdout]     |
[INFO] [stdout] 820 |         let mut exe_context = ExecutionContext::new(&host, host_context);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "80e677e1db5446c4fae89b4fa4fdb7ff928181a5ca850f20f40bbff926812459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e677e1db5446c4fae89b4fa4fdb7ff928181a5ca850f20f40bbff926812459", kill_on_drop: false }`
[INFO] [stdout] 80e677e1db5446c4fae89b4fa4fdb7ff928181a5ca850f20f40bbff926812459
[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=warn" "-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" "+1.49.0" "test" "--frozen", 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] 1169e1b60f9af4c6678d245efeefe753f3a4b8f7154856b45a86040199627f9e
[INFO] running `Command { std: "docker" "start" "-a" "1169e1b60f9af4c6678d245efeefe753f3a4b8f7154856b45a86040199627f9e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:820:13
[INFO] [stderr]     |
[INFO] [stderr] 820 |         let mut exe_context = ExecutionContext::new(&host, host_context);
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/evmc_vm-eea398c8327da869
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test container::tests::container_new ... ok
[INFO] [stdout] test tests::execution_context ... ok
[INFO] [stdout] test tests::message_from_ffi ... ok
[INFO] [stdout] test tests::get_code_size ... ok
[INFO] [stdout] test tests::message_from_ffi_with_input ... ok
[INFO] [stdout] test tests::message_new_with_input ... ok
[INFO] [stdout] test tests::result_from_ffi ... ok
[INFO] [stdout] test tests::result_into_heap_ffi ... ok
[INFO] [stdout] test tests::result_into_heap_ffi_empty_data ... ok
[INFO] [stdout] test tests::result_into_stack_ffi_empty_data ... ok
[INFO] [stdout] test tests::result_new ... ok
[INFO] [stdout] test tests::test_call_with_data ... ok
[INFO] [stdout] test types::tests::address_smoke_test ... ok
[INFO] [stdout] test types::tests::bytes32_smoke_test ... ok
[INFO] [stdout] test types::tests::message_flags ... ok
[INFO] [stdout] test types::tests::message_kind ... ok
[INFO] [stdout] test types::tests::revision ... ok
[INFO] [stdout] test types::tests::status_code ... ok
[INFO] [stdout] test types::tests::storage_status ... ok
[INFO] [stdout] test types::tests::uint26be_smoke_test ... ok
[INFO] [stderr]    Doc-tests evmc-vm
[INFO] [stdout] test tests::result_into_stack_ffi ... ok
[INFO] [stdout] test tests::test_call_empty_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1169e1b60f9af4c6678d245efeefe753f3a4b8f7154856b45a86040199627f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1169e1b60f9af4c6678d245efeefe753f3a4b8f7154856b45a86040199627f9e", kill_on_drop: false }`
[INFO] [stdout] 1169e1b60f9af4c6678d245efeefe753f3a4b8f7154856b45a86040199627f9e