[INFO] cloning repository https://github.com/Oyekunle-Mark/pratt_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Oyekunle-Mark/pratt_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOyekunle-Mark%2Fpratt_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOyekunle-Mark%2Fpratt_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f0242a2cdbe0a0ae026c8798c0b32e119a2d596
[INFO] checking Oyekunle-Mark/pratt_parser against master#d255c6a57c393db6221b1ff700daea478436f1cd for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOyekunle-Mark%2Fpratt_parser" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Oyekunle-Mark/pratt_parser on toolchain d255c6a57c393db6221b1ff700daea478436f1cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d255c6a57c393db6221b1ff700daea478436f1cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Oyekunle-Mark/pratt_parser
[INFO] finished tweaking git repo https://github.com/Oyekunle-Mark/pratt_parser
[INFO] tweaked toml for git repo https://github.com/Oyekunle-Mark/pratt_parser written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Oyekunle-Mark/pratt_parser 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" "+d255c6a57c393db6221b1ff700daea478436f1cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Oyekunle-Mark/pratt_parser against try#1f7553361c08f8eafdc645e09215667278ab86f4 for pr-122317
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOyekunle-Mark%2Fpratt_parser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Oyekunle-Mark/pratt_parser on toolchain 1f7553361c08f8eafdc645e09215667278ab86f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Oyekunle-Mark/pratt_parser
[INFO] finished tweaking git repo https://github.com/Oyekunle-Mark/pratt_parser
[INFO] tweaked toml for git repo https://github.com/Oyekunle-Mark/pratt_parser written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Oyekunle-Mark/pratt_parser 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" "+1f7553361c08f8eafdc645e09215667278ab86f4" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27169b0f711b84c6b9b1a07abe1a036dc3e3e1b7419d5301700098616ecbc5f0
[INFO] running `Command { std: "docker" "start" "-a" "27169b0f711b84c6b9b1a07abe1a036dc3e3e1b7419d5301700098616ecbc5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27169b0f711b84c6b9b1a07abe1a036dc3e3e1b7419d5301700098616ecbc5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27169b0f711b84c6b9b1a07abe1a036dc3e3e1b7419d5301700098616ecbc5f0", kill_on_drop: false }`
[INFO] [stdout] 27169b0f711b84c6b9b1a07abe1a036dc3e3e1b7419d5301700098616ecbc5f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1f7553361c08f8eafdc645e09215667278ab86f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22091ab475d4d762c448ca490f1db039ba4f4db13bac60dfab342221e72e1bab
[INFO] running `Command { std: "docker" "start" "-a" "22091ab475d4d762c448ca490f1db039ba4f4db13bac60dfab342221e72e1bab", kill_on_drop: false }`
[INFO] [stderr]     Checking pratt_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Expression` is never used
[INFO] [stdout]  --> src/expressions/expressions.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Expression {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AssignExpr` is never constructed
[INFO] [stdout]  --> src/expressions/expressions.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AssignExpr {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CallExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CallExpr {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConditionalExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct ConditionalExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NameExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct NameExpr {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OperatorExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct OperatorExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PostfixExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct PostfixExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrefixExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct PrefixExpr {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Expression` is never used
[INFO] [stdout]  --> src/expressions/expressions.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Expression {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AssignExpr` is never constructed
[INFO] [stdout]  --> src/expressions/expressions.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct AssignExpr {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CallExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CallExpr {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConditionalExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct ConditionalExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NameExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct NameExpr {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OperatorExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct OperatorExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PostfixExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct PostfixExpr {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrefixExpr` is never constructed
[INFO] [stdout]   --> src/expressions/expressions.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct PrefixExpr {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "22091ab475d4d762c448ca490f1db039ba4f4db13bac60dfab342221e72e1bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22091ab475d4d762c448ca490f1db039ba4f4db13bac60dfab342221e72e1bab", kill_on_drop: false }`
[INFO] [stdout] 22091ab475d4d762c448ca490f1db039ba4f4db13bac60dfab342221e72e1bab