[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 try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSADmammoth%2FHaffmanCompression_RUST" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SADmammoth/HaffmanCompression_RUST on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "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-4-tc2/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" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dc90fe5355d55c9e9452d5052ae34847cf6091bd92f2c5f570dc748481f8bb5
[INFO] running `Command { std: "docker" "start" "-a" "8dc90fe5355d55c9e9452d5052ae34847cf6091bd92f2c5f570dc748481f8bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dc90fe5355d55c9e9452d5052ae34847cf6091bd92f2c5f570dc748481f8bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc90fe5355d55c9e9452d5052ae34847cf6091bd92f2c5f570dc748481f8bb5", kill_on_drop: false }`
[INFO] [stdout] 8dc90fe5355d55c9e9452d5052ae34847cf6091bd92f2c5f570dc748481f8bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2741b2bf88a11e4017d20397da45de9d6eee6cd3d898d6aef09ef8e16733bcdc
[INFO] running `Command { std: "docker" "start" "-a" "2741b2bf88a11e4017d20397da45de9d6eee6cd3d898d6aef09ef8e16733bcdc", 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: `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: 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 0.38s
[INFO] running `Command { std: "docker" "inspect" "2741b2bf88a11e4017d20397da45de9d6eee6cd3d898d6aef09ef8e16733bcdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2741b2bf88a11e4017d20397da45de9d6eee6cd3d898d6aef09ef8e16733bcdc", kill_on_drop: false }`
[INFO] [stdout] 2741b2bf88a11e4017d20397da45de9d6eee6cd3d898d6aef09ef8e16733bcdc