[INFO] fetching crate stir 0.0.2...
[INFO] testing stir-0.0.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate stir 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate stir 0.0.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stir 0.0.2
[INFO] finished tweaking crates.io crate stir 0.0.2
[INFO] tweaked toml for crates.io crate stir 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a39881cdb0560aa7f4d1bbe4cce321e788816e2a5d678acf5a8cca93ffd68f47
[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" "a39881cdb0560aa7f4d1bbe4cce321e788816e2a5d678acf5a8cca93ffd68f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a39881cdb0560aa7f4d1bbe4cce321e788816e2a5d678acf5a8cca93ffd68f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a39881cdb0560aa7f4d1bbe4cce321e788816e2a5d678acf5a8cca93ffd68f47", kill_on_drop: false }`
[INFO] [stdout] a39881cdb0560aa7f4d1bbe4cce321e788816e2a5d678acf5a8cca93ffd68f47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c00c6de92150707605cf5a4318a22f10305f6fffcaafaf0753872872b4c47b
[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" "85c00c6de92150707605cf5a4318a22f10305f6fffcaafaf0753872872b4c47b", kill_on_drop: false }`
[INFO] [stderr]    Compiling stir v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/recipe/mod.rs:59:37
[INFO] [stdout]    |
[INFO] [stdout] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "85c00c6de92150707605cf5a4318a22f10305f6fffcaafaf0753872872b4c47b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c00c6de92150707605cf5a4318a22f10305f6fffcaafaf0753872872b4c47b", kill_on_drop: false }`
[INFO] [stdout] 85c00c6de92150707605cf5a4318a22f10305f6fffcaafaf0753872872b4c47b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b50a9b62fb3f3e0fb9743f979e6b75ee63f8b960f4a8febe3b53e4c6c16c89c4
[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" "b50a9b62fb3f3e0fb9743f979e6b75ee63f8b960f4a8febe3b53e4c6c16c89c4", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/recipe/mod.rs:59:37
[INFO] [stdout]    |
[INFO] [stdout] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stir v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/recipe/mod.rs:59:37
[INFO] [stdout]    |
[INFO] [stdout] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` 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 1.35s
[INFO] running `Command { std: "docker" "inspect" "b50a9b62fb3f3e0fb9743f979e6b75ee63f8b960f4a8febe3b53e4c6c16c89c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b50a9b62fb3f3e0fb9743f979e6b75ee63f8b960f4a8febe3b53e4c6c16c89c4", kill_on_drop: false }`
[INFO] [stdout] b50a9b62fb3f3e0fb9743f979e6b75ee63f8b960f4a8febe3b53e4c6c16c89c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18b81093ab11c6a5e132c4cc09373defef577304fa8311d7e6b09b98797c2ee8
[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" "18b81093ab11c6a5e132c4cc09373defef577304fa8311d7e6b09b98797c2ee8", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> src/recipe/mod.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> src/recipe/mod.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stir-b57f2686d5445c4d
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test blocks::if_else::tests::output_complete ... ok
[INFO] [stdout] test blocks::if_else::tests::cond_true ... ok
[INFO] [stdout] test blocks::if_else::tests::no_else ... ok
[INFO] [stdout] test label::tests::id_layout ... ok
[INFO] [stdout] test blocks::boolean::tests::test_mut ... ok
[INFO] [stdout] test blocks::boolean::tests::init ... ok
[INFO] [stdout] test label::tests::id_layout_complex_prefix ... ok
[INFO] [stdout] test blocks::if_else::tests::output_no_else ... ok
[INFO] [stdout] test recipe::tests::add_entry ... ok
[INFO] [stdout] test blocks::if_else::tests::cond_false ... ok
[INFO] [stdout] test label::tests::last_id_increases ... ok
[INFO] [stderr]    Doc-tests stir
[INFO] [stdout] test recipe::tests::add_one_block_size_and_entry ... ok
[INFO] [stdout] test recipe::tests::init ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/recipe/mod.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |             Some(entry_block) => Ok({ BasicBlock::interpret(entry_block) }),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/recipe/mod.rs - recipe::Recipe::add (line 26) ... ok
[INFO] [stdout] test src/blocks/basic_block.rs - blocks::basic_block::BasicBlock::interpret (line 29) ... ok
[INFO] [stdout] test src/blocks/boolean.rs - blocks::boolean::Boolean::value (line 39) ... ok
[INFO] [stdout] test src/blocks/boolean.rs - blocks::boolean::Boolean::new (line 23) ... ok
[INFO] [stdout] test src/label/mod.rs - label::Label::new (line 18) ... ok
[INFO] [stdout] test src/blocks/basic_block.rs - blocks::basic_block::BasicBlock::is_critical (line 43) ... ok
[INFO] [stdout] test src/blocks/boolean.rs - blocks::boolean::Boolean::set (line 54) ... ok
[INFO] [stdout] test src/blocks/basic_block.rs - blocks::basic_block::BasicBlock::debug (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18b81093ab11c6a5e132c4cc09373defef577304fa8311d7e6b09b98797c2ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b81093ab11c6a5e132c4cc09373defef577304fa8311d7e6b09b98797c2ee8", kill_on_drop: false }`
[INFO] [stdout] 18b81093ab11c6a5e132c4cc09373defef577304fa8311d7e6b09b98797c2ee8