[INFO] cloning repository https://github.com/Shapur1234/USM-Unremarkable-StackMachine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shapur1234/USM-Unremarkable-StackMachine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapur1234%2FUSM-Unremarkable-StackMachine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapur1234%2FUSM-Unremarkable-StackMachine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce31618825b4f4e847b2fe1d759e9e07e7c0d782
[INFO] checking Shapur1234/USM-Unremarkable-StackMachine against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapur1234%2FUSM-Unremarkable-StackMachine" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine 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 git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine
[INFO] finished tweaking git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine
[INFO] tweaked toml for git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine already has a lockfile, it will not be regenerated
[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 clap v4.3.19
[INFO] [stderr]   Downloaded clap_builder v4.3.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8836843eba23aeabe0eb7e01210efc78bc28f1475c34f138e75749b1a5858b4d
[INFO] running `Command { std: "docker" "start" "-a" "8836843eba23aeabe0eb7e01210efc78bc28f1475c34f138e75749b1a5858b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8836843eba23aeabe0eb7e01210efc78bc28f1475c34f138e75749b1a5858b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8836843eba23aeabe0eb7e01210efc78bc28f1475c34f138e75749b1a5858b4d", kill_on_drop: false }`
[INFO] [stdout] 8836843eba23aeabe0eb7e01210efc78bc28f1475c34f138e75749b1a5858b4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b3e40ccd3de4579ac1294102c0a3c80c5665c81e733e746b1cf6b9aca6055517
[INFO] running `Command { std: "docker" "start" "-a" "b3e40ccd3de4579ac1294102c0a3c80c5665c81e733e746b1cf6b9aca6055517", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking clap_builder v4.3.19
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking clap v4.3.19
[INFO] [stderr]     Checking usm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "b3e40ccd3de4579ac1294102c0a3c80c5665c81e733e746b1cf6b9aca6055517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e40ccd3de4579ac1294102c0a3c80c5665c81e733e746b1cf6b9aca6055517", kill_on_drop: false }`
[INFO] [stdout] b3e40ccd3de4579ac1294102c0a3c80c5665c81e733e746b1cf6b9aca6055517
[INFO] checking Shapur1234/USM-Unremarkable-StackMachine against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapur1234%2FUSM-Unremarkable-StackMachine" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine 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 git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine
[INFO] finished tweaking git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine
[INFO] tweaked toml for git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Shapur1234/USM-Unremarkable-StackMachine already has a lockfile, it will not be regenerated
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] cdebed4f6fae0aee5318e21afb9862c3e2127e3875f529a71c30c2a4ae05309c
[INFO] running `Command { std: "docker" "start" "-a" "cdebed4f6fae0aee5318e21afb9862c3e2127e3875f529a71c30c2a4ae05309c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdebed4f6fae0aee5318e21afb9862c3e2127e3875f529a71c30c2a4ae05309c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdebed4f6fae0aee5318e21afb9862c3e2127e3875f529a71c30c2a4ae05309c", kill_on_drop: false }`
[INFO] [stdout] cdebed4f6fae0aee5318e21afb9862c3e2127e3875f529a71c30c2a4ae05309c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b8096ac2f1d034cc0351c41642c4079d159a529b5d87d463d7369ff55cb926b3
[INFO] running `Command { std: "docker" "start" "-a" "b8096ac2f1d034cc0351c41642c4079d159a529b5d87d463d7369ff55cb926b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking clap_builder v4.3.19
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking clap v4.3.19
[INFO] [stderr]     Checking usm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/vm/virtual_machine.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Err(ExecError::StackUnderflow)?;
[INFO] [stdout]    |                     ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Err::<T, ExecError>(ExecError::StackUnderflow)?;
[INFO] [stdout]    |                        ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/vm/virtual_machine.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Err(ExecError::StackUnderflow)?;
[INFO] [stdout]    |                     ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     Err::<T, ExecError>(ExecError::StackUnderflow)?;
[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 E0282`.
[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 E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usm` (bin "usm" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `usm` (bin "usm") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b8096ac2f1d034cc0351c41642c4079d159a529b5d87d463d7369ff55cb926b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8096ac2f1d034cc0351c41642c4079d159a529b5d87d463d7369ff55cb926b3", kill_on_drop: false }`
[INFO] [stdout] b8096ac2f1d034cc0351c41642c4079d159a529b5d87d463d7369ff55cb926b3