[INFO] cloning repository https://github.com/warp-records/zippopotamus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/warp-records/zippopotamus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarp-records%2Fzippopotamus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarp-records%2Fzippopotamus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0a8ec53f744c467509dbf8bbb7e44c87f0471cd
[INFO] checking warp-records/zippopotamus against master#0e517d38ad0e72f93c734b14fabd4bb9b7441de6 for pr-140557-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarp-records%2Fzippopotamus" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/warp-records/zippopotamus on toolchain 0e517d38ad0e72f93c734b14fabd4bb9b7441de6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/warp-records/zippopotamus
[INFO] finished tweaking git repo https://github.com/warp-records/zippopotamus
[INFO] tweaked toml for git repo https://github.com/warp-records/zippopotamus written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/warp-records/zippopotamus 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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae1fe5d1b08396668295c37d37e9e41763ef30cdc964d96075369e6ee58ae2e0
[INFO] running `Command { std: "docker" "start" "-a" "ae1fe5d1b08396668295c37d37e9e41763ef30cdc964d96075369e6ee58ae2e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae1fe5d1b08396668295c37d37e9e41763ef30cdc964d96075369e6ee58ae2e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1fe5d1b08396668295c37d37e9e41763ef30cdc964d96075369e6ee58ae2e0", kill_on_drop: false }`
[INFO] [stdout] ae1fe5d1b08396668295c37d37e9e41763ef30cdc964d96075369e6ee58ae2e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 600054490ec9474cdf79e39f72b5cf4b25989b230c04470aa1574008ac3d1c8c
[INFO] running `Command { std: "docker" "start" "-a" "600054490ec9474cdf79e39f72b5cf4b25989b230c04470aa1574008ac3d1c8c", kill_on_drop: false }`
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[INFO] [stderr]     Checking utf8_iter v1.0.4
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[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
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[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
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[INFO] [stderr]     Checking zerovec v0.10.4
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[INFO] [stderr]     Checking idna v1.0.3
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[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking webbrowser v1.0.4
[INFO] [stderr]     Checking zippopotamus v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bincode::*`
[INFO] [stdout]  --> src/zip.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::*`
[INFO] [stdout]  --> src/zip.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut huff_table = huff_coder.gen_dict();
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut zpp: Zpp = bincode::deserialize(&serialized[..]).expect("Failed to deserialize");
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(zpp.binary_data);
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/zip.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fs::write(dest, output);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let _ = fs::write(dest, output);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut huff_table = huff_coder.gen_dict();
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut zpp: Zpp = bincode::deserialize(&serialized[..]).expect("Failed to deserialize");
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/zip.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(zpp.binary_data);
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/zip.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fs::write(dest, output);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let _ = fs::write(dest, output);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `env::args`, and `fs`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{env::args, fs, io::{BufRead, BufReader}};
[INFO] [stdout]   |           ^^^^^^^^^  ^^       ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `huffman::*`
[INFO] [stdout]  --> src/main.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zippopotamus::{huffman::*, zip::compress_file};
[INFO] [stdout]   |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webbrowser`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use webbrowser;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `env::args`, and `fs`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{env::args, fs, io::{BufRead, BufReader}};
[INFO] [stdout]   |           ^^^^^^^^^  ^^       ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `huffman::*`
[INFO] [stdout]  --> src/main.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zippopotamus::{huffman::*, zip::compress_file};
[INFO] [stdout]   |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `webbrowser`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use webbrowser;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.50s
[INFO] running `Command { std: "docker" "inspect" "600054490ec9474cdf79e39f72b5cf4b25989b230c04470aa1574008ac3d1c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "600054490ec9474cdf79e39f72b5cf4b25989b230c04470aa1574008ac3d1c8c", kill_on_drop: false }`
[INFO] [stdout] 600054490ec9474cdf79e39f72b5cf4b25989b230c04470aa1574008ac3d1c8c