[INFO] cloning repository https://github.com/shhhshank/Sip-It
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shhhshank/Sip-It" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhhshank%2FSip-It", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhhshank%2FSip-It'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65005692488ca8ad3485aef43d6eefce6b97b16b
[INFO] checking shhhshank/Sip-It against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhhshank%2FSip-It" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shhhshank/Sip-It
[INFO] finished tweaking git repo https://github.com/shhhshank/Sip-It
[INFO] tweaked toml for git repo https://github.com/shhhshank/Sip-It written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shhhshank/Sip-It on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shhhshank/Sip-It 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" "+028201683a76a5cd349729c6819c46607119c4e8" "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 shhhshank/Sip-It against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhhshank%2FSip-It" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shhhshank/Sip-It
[INFO] finished tweaking git repo https://github.com/shhhshank/Sip-It
[INFO] tweaked toml for git repo https://github.com/shhhshank/Sip-It written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shhhshank/Sip-It on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shhhshank/Sip-It 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" "+028201683a76a5cd349729c6819c46607119c4e8" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 447a2ed57e9b00192f53303fba68337bb822036126f3a40b66284e6b31732f84
[INFO] running `Command { std: "docker" "start" "-a" "447a2ed57e9b00192f53303fba68337bb822036126f3a40b66284e6b31732f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "447a2ed57e9b00192f53303fba68337bb822036126f3a40b66284e6b31732f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447a2ed57e9b00192f53303fba68337bb822036126f3a40b66284e6b31732f84", kill_on_drop: false }`
[INFO] [stdout] 447a2ed57e9b00192f53303fba68337bb822036126f3a40b66284e6b31732f84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb5c4a9f3b9c6d9149029dbfe9f19e8c5503b1d5df27435af0584afd929581c4
[INFO] running `Command { std: "docker" "start" "-a" "bb5c4a9f3b9c6d9149029dbfe9f19e8c5503b1d5df27435af0584afd929581c4", kill_on_drop: false }`
[INFO] [stderr]     Checking SipIt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/sip_it.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/sip_it.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/sip_it.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             _ => write!(f, "UNKNOWN"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/sip_it.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             TokenType::INT(int_val) => write!(f, "INT({})", int_val),
[INFO] [stdout]    |             ----------------------- matches some of the same values
[INFO] [stdout] 71 |             TokenType::FLOAT(float_val) => write!(f, "FLOAT({})", float_val),
[INFO] [stdout]    |             --------------------------- matches some of the same values
[INFO] [stdout] 72 |             TokenType::PLUS => write!(f, "PLUS"),
[INFO] [stdout]    |             --------------- matches some of the same values
[INFO] [stdout] 73 |             TokenType::MINUS => write!(f, "MINUS"),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 78 |             _ => write!(f, "UNKNOWN"),
[INFO] [stdout]    |             ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/sip_it.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             _ => write!(f, "UNKNOWN"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/sip_it.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             TokenType::INT(int_val) => write!(f, "INT({})", int_val),
[INFO] [stdout]    |             ----------------------- matches some of the same values
[INFO] [stdout] 71 |             TokenType::FLOAT(float_val) => write!(f, "FLOAT({})", float_val),
[INFO] [stdout]    |             --------------------------- matches some of the same values
[INFO] [stdout] 72 |             TokenType::PLUS => write!(f, "PLUS"),
[INFO] [stdout]    |             --------------- matches some of the same values
[INFO] [stdout] 73 |             TokenType::MINUS => write!(f, "MINUS"),
[INFO] [stdout]    |             ---------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 78 |             _ => write!(f, "UNKNOWN"),
[INFO] [stdout]    |             ^ ...and 4 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_name` is never read
[INFO] [stdout]   --> src/sip_it.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Lexer {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 85 |     fn_name: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pos_end` is never read
[INFO] [stdout]    --> src/sip_it.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub struct Error {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pos_end: Position,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_name` is never read
[INFO] [stdout]   --> src/sip_it.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Lexer {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 85 |     fn_name: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pos_end` is never read
[INFO] [stdout]    --> src/sip_it.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub struct Error {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pos_end: Position,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "bb5c4a9f3b9c6d9149029dbfe9f19e8c5503b1d5df27435af0584afd929581c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb5c4a9f3b9c6d9149029dbfe9f19e8c5503b1d5df27435af0584afd929581c4", kill_on_drop: false }`
[INFO] [stdout] bb5c4a9f3b9c6d9149029dbfe9f19e8c5503b1d5df27435af0584afd929581c4