[INFO] cloning repository https://github.com/naerbnic/loon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/naerbnic/loon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaerbnic%2Floon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaerbnic%2Floon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c91fe0c344235a270729a171fd72a9781072a537
[INFO] checking naerbnic/loon against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaerbnic%2Floon" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/naerbnic/loon on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/naerbnic/loon
[INFO] finished tweaking git repo https://github.com/naerbnic/loon
[INFO] tweaked toml for git repo https://github.com/naerbnic/loon written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/naerbnic/loon 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lexpr-macros v0.2.2
[INFO] [stderr]   Downloaded lexpr v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7754bed844980a444941e79bbc59e236ea479544bc0b8192ee15d1043e499de8
[INFO] running `Command { std: "docker" "start" "-a" "7754bed844980a444941e79bbc59e236ea479544bc0b8192ee15d1043e499de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7754bed844980a444941e79bbc59e236ea479544bc0b8192ee15d1043e499de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7754bed844980a444941e79bbc59e236ea479544bc0b8192ee15d1043e499de8", kill_on_drop: false }`
[INFO] [stdout] 7754bed844980a444941e79bbc59e236ea479544bc0b8192ee15d1043e499de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 516413a723650c0636980c529910487e1bff551c9cd12bcc1a7d4aa86804e81b
[INFO] running `Command { std: "docker" "start" "-a" "516413a723650c0636980c529910487e1bff551c9cd12bcc1a7d4aa86804e81b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling thiserror v1.0.59
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]    Compiling anyhow v1.0.82
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling lexpr-macros v0.2.2
[INFO] [stderr]     Checking lexpr v0.2.7
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]     Checking loon v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Opcode` is never constructed
[INFO] [stdout]   --> src/binary/instructions.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Opcode(ImmString);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inner` is never constructed
[INFO] [stdout]  --> src/runtime/stack.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Inner {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]   --> src/runtime/stack.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Stack(GcRef<Inner>);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Opcode` is never constructed
[INFO] [stdout]   --> src/binary/instructions.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Opcode(ImmString);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inner` is never constructed
[INFO] [stdout]  --> src/runtime/stack.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Inner {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]   --> src/runtime/stack.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Stack(GcRef<Inner>);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "516413a723650c0636980c529910487e1bff551c9cd12bcc1a7d4aa86804e81b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516413a723650c0636980c529910487e1bff551c9cd12bcc1a7d4aa86804e81b", kill_on_drop: false }`
[INFO] [stdout] 516413a723650c0636980c529910487e1bff551c9cd12bcc1a7d4aa86804e81b