[INFO] cloning repository https://github.com/SADmammoth/HaffmanCompression_RUST
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SADmammoth/HaffmanCompression_RUST" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSADmammoth%2FHaffmanCompression_RUST", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSADmammoth%2FHaffmanCompression_RUST'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28f1ca9457158b16c0d5ffc36d560c4bda814d45
[INFO] checking SADmammoth/HaffmanCompression_RUST/28f1ca9457158b16c0d5ffc36d560c4bda814d45 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSADmammoth%2FHaffmanCompression_RUST" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SADmammoth/HaffmanCompression_RUST on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SADmammoth/HaffmanCompression_RUST
[INFO] finished tweaking git repo https://github.com/SADmammoth/HaffmanCompression_RUST
[INFO] tweaked toml for git repo https://github.com/SADmammoth/HaffmanCompression_RUST written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SADmammoth/HaffmanCompression_RUST 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81b5750a067c5b5ccb0f1499c1c107a9fc7f9abdec8e86dfacc2f9b2e785f65d
[INFO] running `Command { std: "docker" "start" "-a" "81b5750a067c5b5ccb0f1499c1c107a9fc7f9abdec8e86dfacc2f9b2e785f65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81b5750a067c5b5ccb0f1499c1c107a9fc7f9abdec8e86dfacc2f9b2e785f65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b5750a067c5b5ccb0f1499c1c107a9fc7f9abdec8e86dfacc2f9b2e785f65d", kill_on_drop: false }`
[INFO] [stdout] 81b5750a067c5b5ccb0f1499c1c107a9fc7f9abdec8e86dfacc2f9b2e785f65d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04a6b9f67fedfce35f7ccd195a978c3456aef65ed7e33ccc11786a40c5ffe2d6
[INFO] running `Command { std: "docker" "start" "-a" "04a6b9f67fedfce35f7ccd195a978c3456aef65ed7e33ccc11786a40c5ffe2d6", kill_on_drop: false }`
[INFO] [stderr]     Checking haffman_compression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `data_access::*`
[INFO] [stdout]  --> src/haffman/tree/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use data_access::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `display::*`
[INFO] [stdout]  --> src/haffman/tree/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use display::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compression::*`
[INFO] [stdout]   --> src/haffman/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use compression::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `data_access::*`
[INFO] [stdout]  --> src/haffman/tree/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use data_access::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `display::*`
[INFO] [stdout]  --> src/haffman/tree/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use display::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "04a6b9f67fedfce35f7ccd195a978c3456aef65ed7e33ccc11786a40c5ffe2d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a6b9f67fedfce35f7ccd195a978c3456aef65ed7e33ccc11786a40c5ffe2d6", kill_on_drop: false }`
[INFO] [stdout] 04a6b9f67fedfce35f7ccd195a978c3456aef65ed7e33ccc11786a40c5ffe2d6