[INFO] fetching crate rust_vm 0.1.0...
[INFO] checking rust_vm-0.1.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate rust_vm 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rust_vm 0.1.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_vm 0.1.0
[INFO] finished tweaking crates.io crate rust_vm 0.1.0
[INFO] tweaked toml for crates.io crate rust_vm 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate rust_vm 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", 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] 4c7aadd785c6efecb9587edc4bbf81056b27cfad769d3ae7b65d2faac4d626fe
[INFO] running `Command { std: "docker" "start" "-a" "4c7aadd785c6efecb9587edc4bbf81056b27cfad769d3ae7b65d2faac4d626fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c7aadd785c6efecb9587edc4bbf81056b27cfad769d3ae7b65d2faac4d626fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7aadd785c6efecb9587edc4bbf81056b27cfad769d3ae7b65d2faac4d626fe", kill_on_drop: false }`
[INFO] [stdout] 4c7aadd785c6efecb9587edc4bbf81056b27cfad769d3ae7b65d2faac4d626fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f971742d9e3bc48ded284a66c4eb3625a341b1541c307cafd538df2e49f1e22a
[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" "f971742d9e3bc48ded284a66c4eb3625a341b1541c307cafd538df2e49f1e22a", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust_vm v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/rust_vm.rs (2 fixes)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RustVM`
[INFO] [stdout]   --> src/main.rs:21:44
[INFO] [stdout]    |
[INFO] [stdout] 21 |     assert_eq!(rust_vm::INSTRUCTION_BYTES, RustVM::get_instruction_length())
[INFO] [stdout]    |                                            ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::rust_vm::RustVM;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RustVM`
[INFO] [stdout]   --> src/main.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     assert_eq!(rust_vm::INSTRUCTION_BYTES, RustVM::get_instruction_length())
[INFO] [stdout]    |                                            ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::rust_vm::RustVM;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stderr] error: could not compile `rust_vm` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: static is never used: `INSTRUCTION_BYTES`
[INFO] [stdout]  --> src/rust_vm.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub static INSTRUCTION_BYTES:usize = 4;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fmt`
[INFO] [stdout]   --> src/rust_vm.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/rust_vm.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn size() -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ip`
[INFO] [stdout]   --> src/rust_vm.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn get_ip(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_instruction_length`
[INFO] [stdout]   --> src/rust_vm.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn get_instruction_length() -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "f971742d9e3bc48ded284a66c4eb3625a341b1541c307cafd538df2e49f1e22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f971742d9e3bc48ded284a66c4eb3625a341b1541c307cafd538df2e49f1e22a", kill_on_drop: false }`
[INFO] [stdout] f971742d9e3bc48ded284a66c4eb3625a341b1541c307cafd538df2e49f1e22a