[INFO] fetching crate garnish_lang_runtime 0.0.1-alpha...
[INFO] checking garnish_lang_runtime-0.0.1-alpha against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate garnish_lang_runtime 0.0.1-alpha into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate garnish_lang_runtime 0.0.1-alpha on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate garnish_lang_runtime 0.0.1-alpha
[INFO] finished tweaking crates.io crate garnish_lang_runtime 0.0.1-alpha
[INFO] tweaked toml for crates.io crate garnish_lang_runtime 0.0.1-alpha written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded garnish_lang_instruction_set_builder v0.0.1-alpha
[INFO] [stderr]   Downloaded garnish_lang_common v0.0.1-alpha
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecd1fdea04d85de4d337aeaab97731abd5cfcafe5b929a6ad2cbaaf8e8c985ca
[INFO] running `Command { std: "docker" "start" "-a" "ecd1fdea04d85de4d337aeaab97731abd5cfcafe5b929a6ad2cbaaf8e8c985ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecd1fdea04d85de4d337aeaab97731abd5cfcafe5b929a6ad2cbaaf8e8c985ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd1fdea04d85de4d337aeaab97731abd5cfcafe5b929a6ad2cbaaf8e8c985ca", kill_on_drop: false }`
[INFO] [stdout] ecd1fdea04d85de4d337aeaab97731abd5cfcafe5b929a6ad2cbaaf8e8c985ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db7f047d4cc886b2a1c223338e9c2c4a1af0d8f8372d34345a096e5547b7504
[INFO] running `Command { std: "docker" "start" "-a" "9db7f047d4cc886b2a1c223338e9c2c4a1af0d8f8372d34345a096e5547b7504", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking garnish_lang_common v0.0.1-alpha
[INFO] [stderr]     Checking garnish_lang_instruction_set_builder v0.0.1-alpha
[INFO] [stderr]     Checking garnish_lang_runtime v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DataType`, `DataVecWriter`
[INFO] [stdout]    --> src/utils.rs:926:31
[INFO] [stdout]     |
[INFO] [stdout] 926 |     use garnish_lang_common::{DataType, DataVecWriter, ExpressionValue};
[INFO] [stdout]     |                               ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::tests::data_slice`
[INFO] [stdout]    --> src/utils.rs:929:9
[INFO] [stdout]     |
[INFO] [stdout] 929 |     use crate::runtime::tests::data_slice;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "9db7f047d4cc886b2a1c223338e9c2c4a1af0d8f8372d34345a096e5547b7504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db7f047d4cc886b2a1c223338e9c2c4a1af0d8f8372d34345a096e5547b7504", kill_on_drop: false }`
[INFO] [stdout] 9db7f047d4cc886b2a1c223338e9c2c4a1af0d8f8372d34345a096e5547b7504
[INFO] checking garnish_lang_runtime-0.0.1-alpha against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate garnish_lang_runtime 0.0.1-alpha into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate garnish_lang_runtime 0.0.1-alpha on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate garnish_lang_runtime 0.0.1-alpha
[INFO] finished tweaking crates.io crate garnish_lang_runtime 0.0.1-alpha
[INFO] tweaked toml for crates.io crate garnish_lang_runtime 0.0.1-alpha written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dfa5a631707fa2986c466e3aba46e272d98434bebc9c13995438afa5ef23b91
[INFO] running `Command { std: "docker" "start" "-a" "5dfa5a631707fa2986c466e3aba46e272d98434bebc9c13995438afa5ef23b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dfa5a631707fa2986c466e3aba46e272d98434bebc9c13995438afa5ef23b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dfa5a631707fa2986c466e3aba46e272d98434bebc9c13995438afa5ef23b91", kill_on_drop: false }`
[INFO] [stdout] 5dfa5a631707fa2986c466e3aba46e272d98434bebc9c13995438afa5ef23b91
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 733ca81e42c8d35d7176391766aa88dd5f3d9a466dd231b48dd64b7fcb2630e6
[INFO] running `Command { std: "docker" "start" "-a" "733ca81e42c8d35d7176391766aa88dd5f3d9a466dd231b48dd64b7fcb2630e6", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking garnish_lang_common v0.0.1-alpha
[INFO] [stderr]     Checking garnish_lang_instruction_set_builder v0.0.1-alpha
[INFO] [stderr]     Checking garnish_lang_runtime v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/instruction_iter.rs:99:21
[INFO] [stdout]     |
[INFO] [stdout] 99  | /                     return Some(InstructionData {
[INFO] [stdout] 100 | |                         instruction: Instruction::Put,
[INFO] [stdout] 101 | |                         instruction_index: index,
[INFO] [stdout] 102 | |                         expression_runtime: self.expression_runtime.clone(),
[INFO] [stdout] 103 | |                         error,
[INFO] [stdout] 104 | |                     })
[INFO] [stdout]     | |______________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DataType`, `DataVecWriter`
[INFO] [stdout]    --> src/utils.rs:926:31
[INFO] [stdout]     |
[INFO] [stdout] 926 |     use garnish_lang_common::{DataType, DataVecWriter, ExpressionValue};
[INFO] [stdout]     |                               ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::tests::data_slice`
[INFO] [stdout]    --> src/utils.rs:929:9
[INFO] [stdout]     |
[INFO] [stdout] 929 |     use crate::runtime::tests::data_slice;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `garnish_lang_runtime` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/instruction_iter.rs:99:21
[INFO] [stdout]     |
[INFO] [stdout] 99  | /                     return Some(InstructionData {
[INFO] [stdout] 100 | |                         instruction: Instruction::Put,
[INFO] [stdout] 101 | |                         instruction_index: index,
[INFO] [stdout] 102 | |                         expression_runtime: self.expression_runtime.clone(),
[INFO] [stdout] 103 | |                         error,
[INFO] [stdout] 104 | |                     })
[INFO] [stdout]     | |______________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `garnish_lang_runtime` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "733ca81e42c8d35d7176391766aa88dd5f3d9a466dd231b48dd64b7fcb2630e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733ca81e42c8d35d7176391766aa88dd5f3d9a466dd231b48dd64b7fcb2630e6", kill_on_drop: false }`
[INFO] [stdout] 733ca81e42c8d35d7176391766aa88dd5f3d9a466dd231b48dd64b7fcb2630e6