[INFO] cloning repository https://github.com/tquang1708/rs_basic_compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tquang1708/rs_basic_compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftquang1708%2Frs_basic_compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftquang1708%2Frs_basic_compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fa570bd18342fb3cb1bda28fd2e730870bee27f
[INFO] checking tquang1708/rs_basic_compressor against master#12f35ad39ed3e39df4d953c46d4f6cc6c82adc96 for pr-155299-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftquang1708%2Frs_basic_compressor" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tquang1708/rs_basic_compressor
[INFO] finished tweaking git repo https://github.com/tquang1708/rs_basic_compressor
[INFO] tweaked toml for git repo https://github.com/tquang1708/rs_basic_compressor written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tquang1708/rs_basic_compressor on toolchain 12f35ad39ed3e39df4d953c46d4f6cc6c82adc96
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tquang1708/rs_basic_compressor 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" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded textwrap v0.9.0
[INFO] [stderr]   Downloaded bitflags v0.9.1
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded clap v2.27.1
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd24574f16b814849fd1a08c04dd6b3a1b9f1324a37408ff4917b43f4147c602
[INFO] running `Command { std: "docker" "start" "-a" "bd24574f16b814849fd1a08c04dd6b3a1b9f1324a37408ff4917b43f4147c602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd24574f16b814849fd1a08c04dd6b3a1b9f1324a37408ff4917b43f4147c602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd24574f16b814849fd1a08c04dd6b3a1b9f1324a37408ff4917b43f4147c602", kill_on_drop: false }`
[INFO] [stdout] bd24574f16b814849fd1a08c04dd6b3a1b9f1324a37408ff4917b43f4147c602
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5df27b5f77819a132c9453accdf28860b008999412e18212baf14bbbde18457
[INFO] running `Command { std: "docker" "start" "-a" "d5df27b5f77819a132c9453accdf28860b008999412e18212baf14bbbde18457", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking basic_compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `curr_decoded` is never read
[INFO] [stdout]    --> src/lzw.rs:125:41
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut curr_decoded: Vec<u8> = Vec::new();
[INFO] [stdout]     |                                         ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 129 |                 curr_decoded = (*a).clone();
[INFO] [stdout]     |                 ------------ `curr_decoded` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `curr_decoded` is never read
[INFO] [stdout]    --> src/lzw.rs:125:41
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut curr_decoded: Vec<u8> = Vec::new();
[INFO] [stdout]     |                                         ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 129 |                 curr_decoded = (*a).clone();
[INFO] [stdout]     |                 ------------ `curr_decoded` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_entry` is never read
[INFO] [stdout]    --> src/lzw.rs:126:38
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut new_entry: Vec<u8> = Vec::new();
[INFO] [stdout]     |                                      ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 131 |                 new_entry = conjecture.clone();
[INFO] [stdout]     |                 --------- `new_entry` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_entry` is never read
[INFO] [stdout]    --> src/lzw.rs:126:38
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut new_entry: Vec<u8> = Vec::new();
[INFO] [stdout]     |                                      ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 131 |                 new_entry = conjecture.clone();
[INFO] [stdout]     |                 --------- `new_entry` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "d5df27b5f77819a132c9453accdf28860b008999412e18212baf14bbbde18457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5df27b5f77819a132c9453accdf28860b008999412e18212baf14bbbde18457", kill_on_drop: false }`
[INFO] [stdout] d5df27b5f77819a132c9453accdf28860b008999412e18212baf14bbbde18457
