[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] building tquang1708/rs_basic_compressor against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[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] validating manifest of git repo https://github.com/tquang1708/rs_basic_compressor on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 182bfbf3e0d58884a0f3a5e4f3330dc69864db1c252427849957f5b1e6d9cf58
[INFO] running `Command { std: "docker" "start" "-a" "182bfbf3e0d58884a0f3a5e4f3330dc69864db1c252427849957f5b1e6d9cf58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "182bfbf3e0d58884a0f3a5e4f3330dc69864db1c252427849957f5b1e6d9cf58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182bfbf3e0d58884a0f3a5e4f3330dc69864db1c252427849957f5b1e6d9cf58", kill_on_drop: false }`
[INFO] [stdout] 182bfbf3e0d58884a0f3a5e4f3330dc69864db1c252427849957f5b1e6d9cf58
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec885b1583bd8a093f9f84c29d12fef1898a62316e6a7715af9a82ddcf834e7b
[INFO] running `Command { std: "docker" "start" "-a" "ec885b1583bd8a093f9f84c29d12fef1898a62316e6a7715af9a82ddcf834e7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.27.1
[INFO] [stderr]    Compiling basic_compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `curr_decoded` is never read
[INFO] [stdout]    --> src/lzw.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut curr_decoded: Vec<u8> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_entry` is never read
[INFO] [stdout]    --> src/lzw.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut new_entry: Vec<u8> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.71s
[INFO] running `Command { std: "docker" "inspect" "ec885b1583bd8a093f9f84c29d12fef1898a62316e6a7715af9a82ddcf834e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec885b1583bd8a093f9f84c29d12fef1898a62316e6a7715af9a82ddcf834e7b", kill_on_drop: false }`
[INFO] [stdout] ec885b1583bd8a093f9f84c29d12fef1898a62316e6a7715af9a82ddcf834e7b
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca8f2a39c724f308bdf939e0f8404d979f1bf0cf1645c5d2b80c27d9c5b27367
[INFO] running `Command { std: "docker" "start" "-a" "ca8f2a39c724f308bdf939e0f8404d979f1bf0cf1645c5d2b80c27d9c5b27367", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic_compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `curr_decoded` is never read
[INFO] [stdout]    --> src/lzw.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut curr_decoded: Vec<u8> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_entry` is never read
[INFO] [stdout]    --> src/lzw.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut new_entry: Vec<u8> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "ca8f2a39c724f308bdf939e0f8404d979f1bf0cf1645c5d2b80c27d9c5b27367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8f2a39c724f308bdf939e0f8404d979f1bf0cf1645c5d2b80c27d9c5b27367", kill_on_drop: false }`
[INFO] [stdout] ca8f2a39c724f308bdf939e0f8404d979f1bf0cf1645c5d2b80c27d9c5b27367