[INFO] cloning repository https://github.com/raegnald/rust-huffman-egui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raegnald/rust-huffman-egui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraegnald%2Frust-huffman-egui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraegnald%2Frust-huffman-egui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10f3e7e5fc386a0130e4aa8f69da2adcce9e599e
[INFO] building raegnald/rust-huffman-egui against master#eb171a227f9e5de5d376b6edb56b174bc8235fb3 for pr-149937
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraegnald%2Frust-huffman-egui" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raegnald/rust-huffman-egui
[INFO] finished tweaking git repo https://github.com/raegnald/rust-huffman-egui
[INFO] tweaked toml for git repo https://github.com/raegnald/rust-huffman-egui written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raegnald/rust-huffman-egui on toolchain eb171a227f9e5de5d376b6edb56b174bc8235fb3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raegnald/rust-huffman-egui 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" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "18a7e70659ba2bb62e25787ca07158e24821cbc2f701d1e669139919ee3d21b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18a7e70659ba2bb62e25787ca07158e24821cbc2f701d1e669139919ee3d21b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a7e70659ba2bb62e25787ca07158e24821cbc2f701d1e669139919ee3d21b7", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba8cee9c9b7f7329cb7f26481b28c2ef36b21770361778cbdd4af388081d8b2e
[INFO] running `Command { std: "docker" "start" "-a" "ba8cee9c9b7f7329cb7f26481b28c2ef36b21770361778cbdd4af388081d8b2e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling eframe v0.27.2
[INFO] [stderr]    Compiling rust-huffman-egui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufWriter` and `Write`
[INFO] [stdout]  --> src/huffman.rs:2:52
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{BinaryHeap, HashMap}, io::{BufWriter, Write}};
[INFO] [stdout]   |                                                    ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `original` and `compressed` are never read
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct SizeComparison {
[INFO] [stdout]    |        -------------- fields in this struct
[INFO] [stdout] 27 |     original: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     compressed: usize
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: document-features v0.2.8
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ba8cee9c9b7f7329cb7f26481b28c2ef36b21770361778cbdd4af388081d8b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8cee9c9b7f7329cb7f26481b28c2ef36b21770361778cbdd4af388081d8b2e", kill_on_drop: false }`
[INFO] [stdout] ba8cee9c9b7f7329cb7f26481b28c2ef36b21770361778cbdd4af388081d8b2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76ee35df937ffa3b2948c73db1bb11a587145cfd4e3983e3ffa4651032a916ba
[INFO] running `Command { std: "docker" "start" "-a" "76ee35df937ffa3b2948c73db1bb11a587145cfd4e3983e3ffa4651032a916ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-huffman-egui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufWriter` and `Write`
[INFO] [stdout]  --> src/huffman.rs:2:52
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{BinaryHeap, HashMap}, io::{BufWriter, Write}};
[INFO] [stdout]   |                                                    ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `original` and `compressed` are never read
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct SizeComparison {
[INFO] [stdout]    |        -------------- fields in this struct
[INFO] [stdout] 27 |     original: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     compressed: usize
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: document-features v0.2.8
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "76ee35df937ffa3b2948c73db1bb11a587145cfd4e3983e3ffa4651032a916ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ee35df937ffa3b2948c73db1bb11a587145cfd4e3983e3ffa4651032a916ba", kill_on_drop: false }`
[INFO] [stdout] 76ee35df937ffa3b2948c73db1bb11a587145cfd4e3983e3ffa4651032a916ba