[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 master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftquang1708%2Frs_basic_compressor" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tquang1708/rs_basic_compressor on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-14/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7e54bd0d4409ac924354cc522055abdeb24ee1d3117c6e714654b4661936921
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c7e54bd0d4409ac924354cc522055abdeb24ee1d3117c6e714654b4661936921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7e54bd0d4409ac924354cc522055abdeb24ee1d3117c6e714654b4661936921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e54bd0d4409ac924354cc522055abdeb24ee1d3117c6e714654b4661936921", kill_on_drop: false }`
[INFO] [stdout] c7e54bd0d4409ac924354cc522055abdeb24ee1d3117c6e714654b4661936921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44de6c72e84627d61bcb63ca18bd2048e30c76c926bd4f111ae3e0fcee118d7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44de6c72e84627d61bcb63ca18bd2048e30c76c926bd4f111ae3e0fcee118d7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[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 16.43s
[INFO] running `Command { std: "docker" "inspect" "44de6c72e84627d61bcb63ca18bd2048e30c76c926bd4f111ae3e0fcee118d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44de6c72e84627d61bcb63ca18bd2048e30c76c926bd4f111ae3e0fcee118d7f", kill_on_drop: false }`
[INFO] [stdout] 44de6c72e84627d61bcb63ca18bd2048e30c76c926bd4f111ae3e0fcee118d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0408c62699bc3bb0b4133e29b0f650b3092f61305c71e8c2e61be72232c7fe0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0408c62699bc3bb0b4133e29b0f650b3092f61305c71e8c2e61be72232c7fe0", 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]     = 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 1.41s
[INFO] running `Command { std: "docker" "inspect" "c0408c62699bc3bb0b4133e29b0f650b3092f61305c71e8c2e61be72232c7fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0408c62699bc3bb0b4133e29b0f650b3092f61305c71e8c2e61be72232c7fe0", kill_on_drop: false }`
[INFO] [stdout] c0408c62699bc3bb0b4133e29b0f650b3092f61305c71e8c2e61be72232c7fe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 538a9884d560a93a5f3b32d04c7af17809e726b65e6f7bf4af8df6f9e5416087
[INFO] running `Command { std: "docker" "start" "-a" "538a9884d560a93a5f3b32d04c7af17809e726b65e6f7bf4af8df6f9e5416087", 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 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/basic_compressor-660cfeaf6324fb38)
[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" "538a9884d560a93a5f3b32d04c7af17809e726b65e6f7bf4af8df6f9e5416087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "538a9884d560a93a5f3b32d04c7af17809e726b65e6f7bf4af8df6f9e5416087", kill_on_drop: false }`
[INFO] [stdout] 538a9884d560a93a5f3b32d04c7af17809e726b65e6f7bf4af8df6f9e5416087