[INFO] fetching crate yolol-runner 0.2.2...
[INFO] checking yolol-runner-0.2.2 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate yolol-runner 0.2.2 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate yolol-runner 0.2.2 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yolol-runner 0.2.2
[INFO] finished tweaking crates.io crate yolol-runner 0.2.2
[INFO] tweaked toml for crates.io crate yolol-runner 0.2.2 written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ce1bae68e0b1dd919b1f95d67bfc4a1690595e291452f647c6f05f99b2f7ff0
[INFO] running `Command { std: "docker" "start" "-a" "2ce1bae68e0b1dd919b1f95d67bfc4a1690595e291452f647c6f05f99b2f7ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce1bae68e0b1dd919b1f95d67bfc4a1690595e291452f647c6f05f99b2f7ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce1bae68e0b1dd919b1f95d67bfc4a1690595e291452f647c6f05f99b2f7ff0", kill_on_drop: false }`
[INFO] [stdout] 2ce1bae68e0b1dd919b1f95d67bfc4a1690595e291452f647c6f05f99b2f7ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 067455f6519ddfbdf492633d5a5c421b679f9571d6e04391f1a0fcc7cb6ce53e
[INFO] running `Command { std: "docker" "start" "-a" "067455f6519ddfbdf492633d5a5c421b679f9571d6e04391f1a0fcc7cb6ce53e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]     Checking peg v0.7.0
[INFO] [stderr]    Compiling concat-idents v1.1.3
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]     Checking yolol-devices v0.3.3
[INFO] [stderr]     Checking yolol-runner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.44s
[INFO] running `Command { std: "docker" "inspect" "067455f6519ddfbdf492633d5a5c421b679f9571d6e04391f1a0fcc7cb6ce53e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "067455f6519ddfbdf492633d5a5c421b679f9571d6e04391f1a0fcc7cb6ce53e", kill_on_drop: false }`
[INFO] [stdout] 067455f6519ddfbdf492633d5a5c421b679f9571d6e04391f1a0fcc7cb6ce53e