[INFO] cloning repository https://github.com/ben-jl/rusty-lox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ben-jl/rusty-lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fa1443fa9828c9d31421521bbd3a208ae0eea75d [INFO] checking ben-jl/rusty-lox/fa1443fa9828c9d31421521bbd3a208ae0eea75d against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fben-jl%2Frusty-lox" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ben-jl/rusty-lox on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ben-jl/rusty-lox [INFO] finished tweaking git repo https://github.com/ben-jl/rusty-lox [INFO] tweaked toml for git repo https://github.com/ben-jl/rusty-lox written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ben-jl/rusty-lox 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded simplelog v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f576883d5ff955d53edbec28c848158021033e887740b9a5fd26f2160ad1f23e [INFO] running `Command { std: "docker" "start" "-a" "f576883d5ff955d53edbec28c848158021033e887740b9a5fd26f2160ad1f23e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f576883d5ff955d53edbec28c848158021033e887740b9a5fd26f2160ad1f23e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f576883d5ff955d53edbec28c848158021033e887740b9a5fd26f2160ad1f23e", kill_on_drop: false }` [INFO] [stdout] f576883d5ff955d53edbec28c848158021033e887740b9a5fd26f2160ad1f23e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 727f7c95038ecd3ff2dc6cf397985906489e2d284dbdb2377a2792feec601b5e [INFO] running `Command { std: "docker" "start" "-a" "727f7c95038ecd3ff2dc6cf397985906489e2d284dbdb2377a2792feec601b5e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Checking rlox-contract v0.1.0 (/opt/rustwide/workdir/rlox-contract) [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rlox-scanner v0.1.0 (/opt/rustwide/workdir/rlox-scanner) [INFO] [stderr] Checking rlox-parser v0.1.0 (/opt/rustwide/workdir/rlox-parser) [INFO] [stderr] Checking rlox-interpreter v0.1.0 (/opt/rustwide/workdir/rlox-interpreter) [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> rlox-parser/src/lib.rs:669:13 [INFO] [stdout] | [INFO] [stdout] 669 | let r = print(&res[0]); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking simplelog v0.10.0 [INFO] [stderr] Checking rlox-cli v0.1.0 (/opt/rustwide/workdir/rlox-cli) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.49s [INFO] running `Command { std: "docker" "inspect" "727f7c95038ecd3ff2dc6cf397985906489e2d284dbdb2377a2792feec601b5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "727f7c95038ecd3ff2dc6cf397985906489e2d284dbdb2377a2792feec601b5e", kill_on_drop: false }` [INFO] [stdout] 727f7c95038ecd3ff2dc6cf397985906489e2d284dbdb2377a2792feec601b5e