[INFO] cloning repository https://github.com/kondziu/FML
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kondziu/FML" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkondziu%2FFML", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkondziu%2FFML'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50869fbdab646a4cc5cecd0c45a83b0502dbeba6
[INFO] checking kondziu/FML against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkondziu%2FFML" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kondziu/FML on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kondziu/FML
[INFO] finished tweaking git repo https://github.com/kondziu/FML
[INFO] tweaked toml for git repo https://github.com/kondziu/FML written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kondziu/FML 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c4bc3905e1a1a2ca1dec37aa81d6c5990780ab168c250330d57cc37ef9d26c4
[INFO] running `Command { std: "docker" "start" "-a" "7c4bc3905e1a1a2ca1dec37aa81d6c5990780ab168c250330d57cc37ef9d26c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c4bc3905e1a1a2ca1dec37aa81d6c5990780ab168c250330d57cc37ef9d26c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4bc3905e1a1a2ca1dec37aa81d6c5990780ab168c250330d57cc37ef9d26c4", kill_on_drop: false }`
[INFO] [stdout] 7c4bc3905e1a1a2ca1dec37aa81d6c5990780ab168c250330d57cc37ef9d26c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9efb4a7530d3e6b349ad9d2100c15013ce35da60e56d16af54ed2d89f3dbfba
[INFO] running `Command { std: "docker" "start" "-a" "e9efb4a7530d3e6b349ad9d2100c15013ce35da60e56d16af54ed2d89f3dbfba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling thread_local v1.1.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling indexmap v1.6.2
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[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling quote v1.0.8
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[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling lexpr-macros v0.2.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking lexpr v0.2.6
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[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling lalrpop-util v0.18.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking serde-lexpr v0.1.2
[INFO] [stderr]     Checking serde_yaml v0.8.16
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.18.1
[INFO] [stderr]    Compiling fml v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `compile` is never used
[INFO] [stdout]    --> src/bytecode/compiler.rs:227:8
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub trait Compiled {
[INFO] [stdout]     |           -------- method in this trait
[INFO] [stdout] 226 |     fn compile_into(&self, program: &mut ProgramGenerator, active_buffer: &mut Code, global_environment:...
[INFO] [stdout] 227 |     fn compile(&self, global_environment: &mut Environment, current_frame: &mut Frame) -> Result<Program> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pretty_print` and `pretty_print_no_first_line_indent` are never used
[INFO] [stdout]   --> src/bytecode/debug.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub trait PrettyPrint: UglyPrint {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 8  |     fn pretty_print<W: Write>(&self, sink: &mut W) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn pretty_print_no_first_line_indent<W: Write>(&self, sink: &mut W, indent: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pretty_print`, `pretty_print_indent`, and `pretty_print_no_indent` are never used
[INFO] [stdout]   --> src/bytecode/debug.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait PrettyPrintWithContext: UglyPrintWithContext {
[INFO] [stdout]    |           ---------------------- methods in this trait
[INFO] [stdout] 23 |     fn pretty_print<W: Write>(&self, sink: &mut W, code: &Code) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn pretty_print_indent<W: Write>(&self, sink: &mut W, code: &Code, indent: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn pretty_print_no_indent<W: Write>(&self, sink: &mut W, code: &Code) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pairs` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Pairable<T, I> where T: Copy + Default {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 17 |     fn pairs(self) -> PairIterator<T, I>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_result` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait MapResult<I> {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 44 |     type IntoIter;
[INFO] [stdout] 45 |     fn into_result(self) -> Result<Self::IntoIter>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pretty_print_no_first_line_indent` is never used
[INFO] [stdout]   --> src/bytecode/debug.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub trait PrettyPrint: UglyPrint {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn pretty_print_no_first_line_indent<W: Write>(&self, sink: &mut W, indent: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pretty_print`, `pretty_print_indent`, and `pretty_print_no_indent` are never used
[INFO] [stdout]   --> src/bytecode/debug.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait PrettyPrintWithContext: UglyPrintWithContext {
[INFO] [stdout]    |           ---------------------- methods in this trait
[INFO] [stdout] 23 |     fn pretty_print<W: Write>(&self, sink: &mut W, code: &Code) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn pretty_print_indent<W: Write>(&self, sink: &mut W, code: &Code, indent: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn pretty_print_no_indent<W: Write>(&self, sink: &mut W, code: &Code) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pairs` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Pairable<T, I> where T: Copy + Default {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 17 |     fn pairs(self) -> PairIterator<T, I>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_result` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait MapResult<I> {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 44 |     type IntoIter;
[INFO] [stdout] 45 |     fn into_result(self) -> Result<Self::IntoIter>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.25s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.18.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e9efb4a7530d3e6b349ad9d2100c15013ce35da60e56d16af54ed2d89f3dbfba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9efb4a7530d3e6b349ad9d2100c15013ce35da60e56d16af54ed2d89f3dbfba", kill_on_drop: false }`
[INFO] [stdout] e9efb4a7530d3e6b349ad9d2100c15013ce35da60e56d16af54ed2d89f3dbfba