[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#4008bbdf34b583ce44a467043aae3703afc0a76f for pr-129249-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkondziu%2FFML" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kondziu/FML on toolchain 4008bbdf34b583ce44a467043aae3703afc0a76f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49
[INFO] running `Command { std: "docker" "start" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49" "/opt/rustwide/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49" "/opt/rustwide/cargo-home/bin/cargo" "+4008bbdf34b583ce44a467043aae3703afc0a76f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
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[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
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[INFO] [stderr]     Checking serde-lexpr v0.1.2
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PrettyPrint` is never used
[INFO] [stdout]  --> src/bytecode/debug.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait PrettyPrint: UglyPrint {
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PrettyPrintWithContext` is never used
[INFO] [stdout]   --> src/bytecode/debug.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait PrettyPrintWithContext: UglyPrintWithContext {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `UglyPrint` is never used
[INFO] [stdout]   --> src/bytecode/debug.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub trait UglyPrint {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `UglyPrintWithContext` is never used
[INFO] [stdout]   --> src/bytecode/debug.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait UglyPrintWithContext {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]    --> src/bytecode/program.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl ConstantPool {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn iter(&self) -> impl Iterator<Item=&ProgramObject> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]    --> src/bytecode/program.rs:860:34
[INFO] [stdout]     |
[INFO] [stdout] 860 | impl Size               { pub fn value(&self) -> u16 { self.0 } }
[INFO] [stdout]     | ---------                        ^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | method in this implementation
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]    --> src/bytecode/program.rs:861:34
[INFO] [stdout]     |
[INFO] [stdout] 861 | impl Arity              { pub fn value(&self) -> u8  { self.0 } }
[INFO] [stdout]     | ----------                       ^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | method in this implementation
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value_u32` is never used
[INFO] [stdout]    --> src/bytecode/program.rs:872:12
[INFO] [stdout]     |
[INFO] [stdout] 863 | impl Address {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 872 |     pub fn value_u32(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Pairable` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Pairable<T, I> where T: Copy + Default {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairIterator` is never constructed
[INFO] [stdout]   --> src/bytecode/helpers.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct PairIterator<T, I> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MapResult` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait MapResult<I> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/bytecode/heap.rs:180:53
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn iter<'a>(&'a self) -> impl Iterator<Item=&Pointer> + 'a {
[INFO] [stdout]     |                      --                             ^^^^^^^^    -- the same lifetime is named here
[INFO] [stdout]     |                      |                              |
[INFO] [stdout]     |                      the lifetime is named here     the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn iter<'a>(&'a self) -> impl Iterator<Item=&'a Pointer> + 'a {
[INFO] [stdout]     |                                                      ++
[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)]` (part of `#[warn(unused)]`) 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: trait `Pairable` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Pairable<T, I> where T: Copy + Default {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PairIterator` is never constructed
[INFO] [stdout]   --> src/bytecode/helpers.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct PairIterator<T, I> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MapResult` is never used
[INFO] [stdout]   --> src/bytecode/helpers.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait MapResult<I> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/bytecode/heap.rs:180:53
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn iter<'a>(&'a self) -> impl Iterator<Item=&Pointer> + 'a {
[INFO] [stdout]     |                      --                             ^^^^^^^^    -- the same lifetime is named here
[INFO] [stdout]     |                      |                              |
[INFO] [stdout]     |                      the lifetime is named here     the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn iter<'a>(&'a self) -> impl Iterator<Item=&'a Pointer> + 'a {
[INFO] [stdout]     |                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.02s
[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" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49", kill_on_drop: false }`
[INFO] [stdout] abf9027d6bbd9ac3f9688530de33d036880003fca98a944fd5e3f62ee1d47c49
