[INFO] cloning repository https://github.com/georgiyozhegov/mellow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/georgiyozhegov/mellow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiyozhegov%2Fmellow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiyozhegov%2Fmellow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb28a338a911c1cc69ba554104fe3da305356049
[INFO] fixing georgiyozhegov/mellow against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiyozhegov%2Fmellow" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/georgiyozhegov/mellow
[INFO] finished tweaking git repo https://github.com/georgiyozhegov/mellow
[INFO] tweaked toml for git repo https://github.com/georgiyozhegov/mellow written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/georgiyozhegov/mellow on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/georgiyozhegov/mellow 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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-2-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2
[INFO] running `Command { std: "docker" "start" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2", 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" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking mellow-error v0.1.0 (/opt/rustwide/workdir/lib/mellow-error)
[INFO] [stderr]     Checking mellow-lex v0.1.0 (/opt/rustwide/workdir/lib/mellow-lex)
[INFO] [stderr]     Checking mellow-parse v0.1.0 (/opt/rustwide/workdir/lib/mellow-parse)
[INFO] [stderr]     Checking ir v0.1.0 (/opt/rustwide/workdir/lib/ir)
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> lib/ir/src/symbol_table.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn integer(&mut self, node: Integer) -> Self::Output {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/ir/src/symbol_table.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn variables(&self) -> Iter<Identifier, VariableMeta> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn variables(&self) -> Iter<'_, Identifier, VariableMeta> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/ir/src/symbol_table.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn functions(&self) -> Iter<Identifier, FunctionMeta> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn functions(&self) -> Iter<'_, Identifier, FunctionMeta> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> lib/ir/src/symbol_table.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn integer(&mut self, node: Integer) -> Self::Output {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/ir/src/symbol_table.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn variables(&self) -> Iter<Identifier, VariableMeta> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn variables(&self) -> Iter<'_, Identifier, VariableMeta> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/ir/src/symbol_table.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn functions(&self) -> Iter<Identifier, FunctionMeta> {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn functions(&self) -> Iter<'_, Identifier, FunctionMeta> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mellow-assembly v0.1.0 (/opt/rustwide/workdir/lib/mellow-assembly)
[INFO] [stderr]     Checking mellow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find module or crate `assembly` in this scope
[INFO] [stdout]   --> src/main.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let assembly = assembly::convert(tac);
[INFO] [stdout]    |                    ^^^^^^^^ use of unresolved module or unlinked crate `assembly`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `assembly`, use `cargo add assembly` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `assembly` in this scope
[INFO] [stdout]   --> src/main.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let assembly = assembly::convert(tac);
[INFO] [stdout]    |                    ^^^^^^^^ use of unresolved module or unlinked crate `assembly`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `assembly`, use `cargo add assembly` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `assembly` in this scope
[INFO] [stdout]   --> src/main.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let assembly = assembly::optimize(assembly);
[INFO] [stdout]    |                    ^^^^^^^^ use of unresolved module or unlinked crate `assembly`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `assembly`, use `cargo add assembly` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `assembly` in this scope
[INFO] [stdout]   --> src/main.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let assembly = assembly::optimize(assembly);
[INFO] [stdout]    |                    ^^^^^^^^ use of unresolved module or unlinked crate `assembly`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `assembly`, use `cargo add assembly` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mellow` (bin "mellow") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mellow` (bin "mellow" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2", kill_on_drop: false }`
[INFO] [stdout] fc73b025ddaf33f21a488c5fbb274aac617a2bf39d9a5873b31a974bf75a27b2
