[INFO] cloning repository https://github.com/muscar/spl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muscar/spl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuscar%2Fspl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuscar%2Fspl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbb5fcc953b086ef584128c8587316067df5071e
[INFO] checking muscar/spl against try#7d2afcda7a9c043d5175cbca3ab08f0acf02b13a for pr-140824
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuscar%2Fspl" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/muscar/spl on toolchain 7d2afcda7a9c043d5175cbca3ab08f0acf02b13a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/muscar/spl
[INFO] finished tweaking git repo https://github.com/muscar/spl
[INFO] tweaked toml for git repo https://github.com/muscar/spl written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/muscar/spl 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" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking muscar/spl against try#7d2afcda7a9c043d5175cbca3ab08f0acf02b13a for pr-140824
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuscar%2Fspl" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/muscar/spl on toolchain 7d2afcda7a9c043d5175cbca3ab08f0acf02b13a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/muscar/spl
[INFO] finished tweaking git repo https://github.com/muscar/spl
[INFO] tweaked toml for git repo https://github.com/muscar/spl written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/muscar/spl 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" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 596af80b24d4faacb6ec24b1ad8bfcd01ddd91ecf8c0eaf974e4ab5692e825e5
[INFO] running `Command { std: "docker" "start" "-a" "596af80b24d4faacb6ec24b1ad8bfcd01ddd91ecf8c0eaf974e4ab5692e825e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "596af80b24d4faacb6ec24b1ad8bfcd01ddd91ecf8c0eaf974e4ab5692e825e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596af80b24d4faacb6ec24b1ad8bfcd01ddd91ecf8c0eaf974e4ab5692e825e5", kill_on_drop: false }`
[INFO] [stdout] 596af80b24d4faacb6ec24b1ad8bfcd01ddd91ecf8c0eaf974e4ab5692e825e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+7d2afcda7a9c043d5175cbca3ab08f0acf02b13a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd716f5703e9d6e71e6714600ad1bc7ff507eaab07ef044d28e460b3ee1ee13b
[INFO] running `Command { std: "docker" "start" "-a" "fd716f5703e9d6e71e6714600ad1bc7ff507eaab07ef044d28e460b3ee1ee13b", kill_on_drop: false }`
[INFO] [stderr]     Checking spl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Procedure` is never constructed
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum Decl {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 31 |     Var(Ident, Option<TypeAnnot>, Option<Expr>),
[INFO] [stdout] 32 |     Procedure(Ident, Option<TypeAnnot>, Vec<(Ident, TypeAnnot)>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Decl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `WriteStr` is never constructed
[INFO] [stdout]     --> src/main.rs:1129:5
[INFO] [stdout]      |
[INFO] [stdout] 1110 | enum OpCode {
[INFO] [stdout]      |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 1129 |     WriteStr,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `OpCode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Procedure` is never constructed
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum Decl {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 31 |     Var(Ident, Option<TypeAnnot>, Option<Expr>),
[INFO] [stdout] 32 |     Procedure(Ident, Option<TypeAnnot>, Vec<(Ident, TypeAnnot)>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Decl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `WriteStr` is never constructed
[INFO] [stdout]     --> src/main.rs:1129:5
[INFO] [stdout]      |
[INFO] [stdout] 1110 | enum OpCode {
[INFO] [stdout]      |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 1129 |     WriteStr,
[INFO] [stdout]      |     ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `OpCode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "fd716f5703e9d6e71e6714600ad1bc7ff507eaab07ef044d28e460b3ee1ee13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd716f5703e9d6e71e6714600ad1bc7ff507eaab07ef044d28e460b3ee1ee13b", kill_on_drop: false }`
[INFO] [stdout] fd716f5703e9d6e71e6714600ad1bc7ff507eaab07ef044d28e460b3ee1ee13b