[INFO] cloning repository https://github.com/oeb25/lo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oeb25/lo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Flo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Flo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 755e067454ad3cc9c7c199fe2c905908c3468b0d
[INFO] checking oeb25/lo against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Flo" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oeb25/lo on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oeb25/lo
[INFO] finished tweaking git repo https://github.com/oeb25/lo
[INFO] tweaked toml for git repo https://github.com/oeb25/lo written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/oeb25/lo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 0d41b121313b0664a70f1cd7977e69b22c997a30aeb0bfa7f4761e7285de3503
[INFO] running `Command { std: "docker" "start" "-a" "0d41b121313b0664a70f1cd7977e69b22c997a30aeb0bfa7f4761e7285de3503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d41b121313b0664a70f1cd7977e69b22c997a30aeb0bfa7f4761e7285de3503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d41b121313b0664a70f1cd7977e69b22c997a30aeb0bfa7f4761e7285de3503", kill_on_drop: false }`
[INFO] [stdout] 0d41b121313b0664a70f1cd7977e69b22c997a30aeb0bfa7f4761e7285de3503
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d7768f0763f6bc8bb9daea56e2c6b3104a778b4b36769ae18a6676edd1c8958
[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" "5d7768f0763f6bc8bb9daea56e2c6b3104a778b4b36769ae18a6676edd1c8958", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking lo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/parser.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     'statement_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Operator`
[INFO] [stdout]  --> src/typer.rs:2:62
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Block, Expression, ExpressionKind, FunctionDef, Literal, Operator, Origin, Program,
[INFO] [stdout]   |                                                              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:18:29
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/parser.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 |     'statement_loop: loop {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Operator`
[INFO] [stdout]  --> src/typer.rs:2:62
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Block, Expression, ExpressionKind, FunctionDef, Literal, Operator, Origin, Program,
[INFO] [stdout]   |                                                              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/instruction.rs:213:43
[INFO] [stdout]     |
[INFO] [stdout] 213 |     for b in res.0.iter().enumerate().rev() {;
[INFO] [stdout]     |                                              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:18:29
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `order_structs`
[INFO] [stdout]    --> src/ast.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn order_structs(&self) -> Vec<&StructDef<'a>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Index`
[INFO] [stdout]   --> src/c.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Index(Box<Expression<'a>>, Box<Expression<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FunctionCall`
[INFO] [stdout]   --> src/c.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     FunctionCall(Box<Expression<'a>>, Vec<Expression<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Add8`
[INFO] [stdout]    --> src/instruction.rs:137:2
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Add8(Register, Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `order_structs`
[INFO] [stdout]    --> src/ast.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn order_structs(&self) -> Vec<&StructDef<'a>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Index`
[INFO] [stdout]   --> src/c.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Index(Box<Expression<'a>>, Box<Expression<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FunctionCall`
[INFO] [stdout]   --> src/c.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     FunctionCall(Box<Expression<'a>>, Vec<Expression<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/instruction.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn new() -> Bytes<B> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Store`
[INFO] [stdout]    --> src/instruction.rs:136:2
[INFO] [stdout]     |
[INFO] [stdout] 136 |     Store(Register, B),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Add8`
[INFO] [stdout]    --> src/instruction.rs:137:2
[INFO] [stdout]     |
[INFO] [stdout] 137 |     Add8(Register, Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF2`
[INFO] [stdout]    --> src/instruction.rs:138:2
[INFO] [stdout]     |
[INFO] [stdout] 138 |     AddF2(Register, Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Save`
[INFO] [stdout]    --> src/instruction.rs:139:2
[INFO] [stdout]     |
[INFO] [stdout] 139 |     Save(Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Jump`
[INFO] [stdout]    --> src/instruction.rs:140:2
[INFO] [stdout]     |
[INFO] [stdout] 140 |     Jump(Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Print`
[INFO] [stdout]    --> src/instruction.rs:141:2
[INFO] [stdout]     |
[INFO] [stdout] 141 |     Print(Register),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]    --> src/instruction.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn run<B: Byte>(instructions: &[Instruction<B>]) -> Bytes<B> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.94s
[INFO] running `Command { std: "docker" "inspect" "5d7768f0763f6bc8bb9daea56e2c6b3104a778b4b36769ae18a6676edd1c8958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7768f0763f6bc8bb9daea56e2c6b3104a778b4b36769ae18a6676edd1c8958", kill_on_drop: false }`
[INFO] [stdout] 5d7768f0763f6bc8bb9daea56e2c6b3104a778b4b36769ae18a6676edd1c8958