[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] testing tquang1708/rs_basic_compressor against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftquang1708%2Frs_basic_compressor" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tquang1708/rs_basic_compressor on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-29/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: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d62e349640eafb48ff0e6b72b2584d040b1a016230dbf3e70677b9f51188eb2b
[INFO] running `Command { std: "docker" "start" "-a" "d62e349640eafb48ff0e6b72b2584d040b1a016230dbf3e70677b9f51188eb2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d62e349640eafb48ff0e6b72b2584d040b1a016230dbf3e70677b9f51188eb2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62e349640eafb48ff0e6b72b2584d040b1a016230dbf3e70677b9f51188eb2b", kill_on_drop: false }`
[INFO] [stdout] d62e349640eafb48ff0e6b72b2584d040b1a016230dbf3e70677b9f51188eb2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e383ade587fdeefcfb3761c53a5bc528592e8537b2f7807f7b377f56cf7926e4
[INFO] running `Command { std: "docker" "start" "-a" "e383ade587fdeefcfb3761c53a5bc528592e8537b2f7807f7b377f56cf7926e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[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 bitflags v0.9.1
[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]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.26s
[INFO] running `Command { std: "docker" "inspect" "e383ade587fdeefcfb3761c53a5bc528592e8537b2f7807f7b377f56cf7926e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e383ade587fdeefcfb3761c53a5bc528592e8537b2f7807f7b377f56cf7926e4", kill_on_drop: false }`
[INFO] [stdout] e383ade587fdeefcfb3761c53a5bc528592e8537b2f7807f7b377f56cf7926e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7d1f8cd123a60c4270accd1d866729dc41f3646d80ea726bb9b7159b24ea31e
[INFO] running `Command { std: "docker" "start" "-a" "c7d1f8cd123a60c4270accd1d866729dc41f3646d80ea726bb9b7159b24ea31e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "c7d1f8cd123a60c4270accd1d866729dc41f3646d80ea726bb9b7159b24ea31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d1f8cd123a60c4270accd1d866729dc41f3646d80ea726bb9b7159b24ea31e", kill_on_drop: false }`
[INFO] [stdout] c7d1f8cd123a60c4270accd1d866729dc41f3646d80ea726bb9b7159b24ea31e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd409253d3c13ff87346458dd6c590c47c64f48c445881a5ff1036a9647ed711
[INFO] running `Command { std: "docker" "start" "-a" "bd409253d3c13ff87346458dd6c590c47c64f48c445881a5ff1036a9647ed711", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `curr_decoded` is never read
[INFO] [stderr]    --> src/lzw.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let mut curr_decoded: Vec<u8> = Vec::new();
[INFO] [stderr]     |                 ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `new_entry` is never read
[INFO] [stderr]    --> src/lzw.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |         let mut new_entry: Vec<u8> = Vec::new();
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `basic_compressor` (bin "basic_compressor" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/basic_compressor-cab9363ed72e6bea)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd409253d3c13ff87346458dd6c590c47c64f48c445881a5ff1036a9647ed711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd409253d3c13ff87346458dd6c590c47c64f48c445881a5ff1036a9647ed711", kill_on_drop: false }`
[INFO] [stdout] bd409253d3c13ff87346458dd6c590c47c64f48c445881a5ff1036a9647ed711