[INFO] cloning repository https://github.com/aweinstock314/ropship-inspired-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aweinstock314/ropship-inspired-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fropship-inspired-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fropship-inspired-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c926c73cb6390b012aad80e5f239efba0ee0e5b1
[INFO] checking aweinstock314/ropship-inspired-lang against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fropship-inspired-lang" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aweinstock314/ropship-inspired-lang
[INFO] finished tweaking git repo https://github.com/aweinstock314/ropship-inspired-lang
[INFO] tweaked toml for git repo https://github.com/aweinstock314/ropship-inspired-lang written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aweinstock314/ropship-inspired-lang on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aweinstock314/ropship-inspired-lang 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45f99b767068c1e32bb78484ea1560e3eedb1c881de55eeb4aef0858fb390478
[INFO] running `Command { std: "docker" "start" "-a" "45f99b767068c1e32bb78484ea1560e3eedb1c881de55eeb4aef0858fb390478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f99b767068c1e32bb78484ea1560e3eedb1c881de55eeb4aef0858fb390478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f99b767068c1e32bb78484ea1560e3eedb1c881de55eeb4aef0858fb390478", kill_on_drop: false }`
[INFO] [stdout] 45f99b767068c1e32bb78484ea1560e3eedb1c881de55eeb4aef0858fb390478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b07de14b5749f036ec0ee16f498224f80a65dd4b2cf93eab1a7467dbbe5bbf77
[INFO] running `Command { std: "docker" "start" "-a" "b07de14b5749f036ec0ee16f498224f80a65dd4b2cf93eab1a7467dbbe5bbf77", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking goblin v0.2.0
[INFO] [stderr]     Checking ropship-inspired-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Config`
[INFO] [stdout]   --> src/graph_algos.rs:80:38
[INFO] [stdout]    |
[INFO] [stdout] 80 |     use petgraph::{Graph, dot::{Dot, Config}};
[INFO] [stdout]    |                                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gadget`
[INFO] [stdout]    --> src/main.rs:702:36
[INFO] [stdout]     |
[INFO] [stdout] 702 |         fn gadget_available(&self, gadget: GadgetKind) -> bool {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_gadget`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `absreg`
[INFO] [stdout]    --> src/main.rs:705:38
[INFO] [stdout]     |
[INFO] [stdout] 705 |         fn physreg_for_absreg(&self, absreg: RegisterNumber) -> X86Reg {
[INFO] [stdout]     |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_absreg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]    --> src/main.rs:708:34
[INFO] [stdout]     |
[INFO] [stdout] 708 |         fn do_codegen(&mut self, prog: &StackishProgram<HigherLevelOps>) {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `CodegenCtx` is never constructed
[INFO] [stdout]    --> src/main.rs:697:16
[INFO] [stdout]     |
[INFO] [stdout] 697 |     pub struct CodegenCtx<'gadgets> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gadget_locs` and `regalloc` are never read
[INFO] [stdout]    --> src/main.rs:698:9
[INFO] [stdout]     |
[INFO] [stdout] 697 |     pub struct CodegenCtx<'gadgets> {
[INFO] [stdout]     |                ---------- fields in this struct
[INFO] [stdout] 698 |         gadget_locs: BTreeMap<&'gadgets [u8], Vec<usize>>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 699 |         regalloc: BTreeMap<RegisterNumber, X86Reg>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `gadget_available`, `physreg_for_absreg`, and `do_codegen` are never used
[INFO] [stdout]    --> src/main.rs:702:12
[INFO] [stdout]     |
[INFO] [stdout] 701 |     impl<'gadgets> CodegenCtx<'gadgets> {
[INFO] [stdout]     |     ----------------------------------- methods in this implementation
[INFO] [stdout] 702 |         fn gadget_available(&self, gadget: GadgetKind) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 705 |         fn physreg_for_absreg(&self, absreg: RegisterNumber) -> X86Reg {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 708 |         fn do_codegen(&mut self, prog: &StackishProgram<HigherLevelOps>) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ropship-inspired-lang` (bin "ropship-inspired-lang") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `gadget`
[INFO] [stdout]    --> src/main.rs:702:36
[INFO] [stdout]     |
[INFO] [stdout] 702 |         fn gadget_available(&self, gadget: GadgetKind) -> bool {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_gadget`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `absreg`
[INFO] [stdout]    --> src/main.rs:705:38
[INFO] [stdout]     |
[INFO] [stdout] 705 |         fn physreg_for_absreg(&self, absreg: RegisterNumber) -> X86Reg {
[INFO] [stdout]     |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_absreg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]    --> src/main.rs:708:34
[INFO] [stdout]     |
[INFO] [stdout] 708 |         fn do_codegen(&mut self, prog: &StackishProgram<HigherLevelOps>) {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `CodegenCtx` is never constructed
[INFO] [stdout]    --> src/main.rs:697:16
[INFO] [stdout]     |
[INFO] [stdout] 697 |     pub struct CodegenCtx<'gadgets> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gadget_locs` and `regalloc` are never read
[INFO] [stdout]    --> src/main.rs:698:9
[INFO] [stdout]     |
[INFO] [stdout] 697 |     pub struct CodegenCtx<'gadgets> {
[INFO] [stdout]     |                ---------- fields in this struct
[INFO] [stdout] 698 |         gadget_locs: BTreeMap<&'gadgets [u8], Vec<usize>>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 699 |         regalloc: BTreeMap<RegisterNumber, X86Reg>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `gadget_available`, `physreg_for_absreg`, and `do_codegen` are never used
[INFO] [stdout]    --> src/main.rs:702:12
[INFO] [stdout]     |
[INFO] [stdout] 701 |     impl<'gadgets> CodegenCtx<'gadgets> {
[INFO] [stdout]     |     ----------------------------------- methods in this implementation
[INFO] [stdout] 702 |         fn gadget_available(&self, gadget: GadgetKind) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 705 |         fn physreg_for_absreg(&self, absreg: RegisterNumber) -> X86Reg {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 708 |         fn do_codegen(&mut self, prog: &StackishProgram<HigherLevelOps>) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ropship-inspired-lang` (bin "ropship-inspired-lang" test) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b07de14b5749f036ec0ee16f498224f80a65dd4b2cf93eab1a7467dbbe5bbf77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b07de14b5749f036ec0ee16f498224f80a65dd4b2cf93eab1a7467dbbe5bbf77", kill_on_drop: false }`
[INFO] [stdout] b07de14b5749f036ec0ee16f498224f80a65dd4b2cf93eab1a7467dbbe5bbf77