[INFO] cloning repository https://github.com/matthew-io/bencode-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthew-io/bencode-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthew-io%2Fbencode-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthew-io%2Fbencode-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be27d0935b9db1332da0bb7de327f0860775355f
[INFO] checking matthew-io/bencode-parser against try#e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837 for pr-143619
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthew-io%2Fbencode-parser" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matthew-io/bencode-parser
[INFO] finished tweaking git repo https://github.com/matthew-io/bencode-parser
[INFO] tweaked toml for git repo https://github.com/matthew-io/bencode-parser written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthew-io/bencode-parser on toolchain e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthew-io/bencode-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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "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
[INFO] checking matthew-io/bencode-parser against try#e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837 for pr-143619
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthew-io%2Fbencode-parser" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matthew-io/bencode-parser
[INFO] finished tweaking git repo https://github.com/matthew-io/bencode-parser
[INFO] tweaked toml for git repo https://github.com/matthew-io/bencode-parser written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthew-io/bencode-parser on toolchain e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthew-io/bencode-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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5548b000092fc346a3a59cef85ddd32ca1b56431c5a0c0b5b6b35269ba0eeaee
[INFO] running `Command { std: "docker" "start" "-a" "5548b000092fc346a3a59cef85ddd32ca1b56431c5a0c0b5b6b35269ba0eeaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5548b000092fc346a3a59cef85ddd32ca1b56431c5a0c0b5b6b35269ba0eeaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5548b000092fc346a3a59cef85ddd32ca1b56431c5a0c0b5b6b35269ba0eeaee", kill_on_drop: false }`
[INFO] [stdout] 5548b000092fc346a3a59cef85ddd32ca1b56431c5a0c0b5b6b35269ba0eeaee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6219550f1ce9dbbf7cd32cd93f5179d899efee10734c798fa21ed44695b4146c
[INFO] running `Command { std: "docker" "start" "-a" "6219550f1ce9dbbf7cd32cd93f5179d899efee10734c798fa21ed44695b4146c", kill_on_drop: false }`
[INFO] [stderr]     Checking bencode-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::BTreeMap` and `error::Error`
[INFO] [stdout]  --> src/bencode/encode.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeMap, error::Error};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::BTreeMap` and `error::Error`
[INFO] [stdout]  --> src/bencode/encode.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeMap, error::Error};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::BTreeMap` and `error::Error`
[INFO] [stdout]  --> src/bencode/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::BTreeMap, error::Error};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::BTreeMap` and `error::Error`
[INFO] [stdout]  --> src/bencode/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::BTreeMap, error::Error};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INT_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INT_TOKEN: u8 = b'i';
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DICT_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const DICT_TOKEN: u8 = b'd';
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIST_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LIST_TOKEN: u8 = b'l';
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/bencode/decode.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Int(i64),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Bencode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Int(i64),
[INFO] [stdout] 9 +     Int(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bencode/decode.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     List(Vec<Bencode>),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bencode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     List(Vec<Bencode>),
[INFO] [stdout] 10 +     List(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode` is never used
[INFO] [stdout]  --> src/bencode/encode.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn encode(data: &Bencode) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INT_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const INT_TOKEN: u8 = b'i';
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DICT_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const DICT_TOKEN: u8 = b'd';
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LIST_TOKEN` is never used
[INFO] [stdout]  --> src/bencode/mod.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const LIST_TOKEN: u8 = b'l';
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/bencode/decode.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Int(i64),
[INFO] [stdout]   |     --- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Bencode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     Int(i64),
[INFO] [stdout] 9 +     Int(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bencode/decode.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     List(Vec<Bencode>),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Bencode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     List(Vec<Bencode>),
[INFO] [stdout] 10 +     List(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode` is never used
[INFO] [stdout]  --> src/bencode/encode.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn encode(data: &Bencode) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "6219550f1ce9dbbf7cd32cd93f5179d899efee10734c798fa21ed44695b4146c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6219550f1ce9dbbf7cd32cd93f5179d899efee10734c798fa21ed44695b4146c", kill_on_drop: false }`
[INFO] [stdout] 6219550f1ce9dbbf7cd32cd93f5179d899efee10734c798fa21ed44695b4146c