[INFO] fetching crate preflate-rs 0.5.0...
[INFO] checking preflate-rs-0.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate preflate-rs 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate preflate-rs 0.5.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preflate-rs 0.5.0
[INFO] finished tweaking crates.io crate preflate-rs 0.5.0
[INFO] tweaked toml for crates.io crate preflate-rs 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages
[INFO] [stderr]       Adding cabac v0.6.0 (latest: v0.8.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded default-boxed-derive v0.2.0
[INFO] [stderr]   Downloaded default-boxed v0.2.0
[INFO] [stderr]   Downloaded cabac v0.6.0
[INFO] [stderr]   Downloaded libdeflate-sys v1.20.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1566e9c6101e9366a988a6204dc3551358c753c9065faa5ca048671f96ce3795
[INFO] running `Command { std: "docker" "start" "-a" "1566e9c6101e9366a988a6204dc3551358c753c9065faa5ca048671f96ce3795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1566e9c6101e9366a988a6204dc3551358c753c9065faa5ca048671f96ce3795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1566e9c6101e9366a988a6204dc3551358c753c9065faa5ca048671f96ce3795", kill_on_drop: false }`
[INFO] [stdout] 1566e9c6101e9366a988a6204dc3551358c753c9065faa5ca048671f96ce3795
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6610b7a08639aba62875e2e17651fce7bd7645cea17d3a45b0b314dc36221190
[INFO] running `Command { std: "docker" "start" "-a" "6610b7a08639aba62875e2e17651fce7bd7645cea17d3a45b0b314dc36221190", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libdeflate-sys v1.20.0
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]     Checking cabac v0.6.0
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking anyhow v1.0.81
[INFO] [stderr]    Compiling default-boxed-derive v0.2.0
[INFO] [stderr]     Checking default-boxed v0.2.0
[INFO] [stderr]     Checking preflate-rs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 | use anyhow::{self};
[INFO] [stdout]    |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:42:18
[INFO] [stdout]    |
[INFO] [stdout] 42 |     io::{Cursor, Write},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reference_count` and `unfound_references` are never read
[INFO] [stdout]   --> src/complevel_estimator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct CompLevelInfo {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 19 |     pub zlib_compatible: bool,
[INFO] [stdout] 20 |     pub reference_count: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     pub unfound_references: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashChainTrait` is never used
[INFO] [stdout]   --> src/hash_chain.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait HashChainTrait: Default {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/predictor_state.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0(u32, u32),
[INFO] [stdout]    |     ---------------------- ^^^  ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0((), ()),
[INFO] [stdout]    |                            ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/predictor_state.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(u32),
[INFO] [stdout]    |     ---------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `requested_match_depth` and `condensed_hops` are never read
[INFO] [stdout]   --> src/predictor_state.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PreflateRematchInfo {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 28 |     pub requested_match_depth: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub condensed_hops: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 | use anyhow::{self};
[INFO] [stdout]    |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:42:18
[INFO] [stdout]    |
[INFO] [stdout] 42 |     io::{Cursor, Write},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reference_count` and `unfound_references` are never read
[INFO] [stdout]   --> src/complevel_estimator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct CompLevelInfo {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 19 |     pub zlib_compatible: bool,
[INFO] [stdout] 20 |     pub reference_count: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     pub unfound_references: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashChainTrait` is never used
[INFO] [stdout]   --> src/hash_chain.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait HashChainTrait: Default {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/predictor_state.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0(u32, u32),
[INFO] [stdout]    |     ---------------------- ^^^  ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0((), ()),
[INFO] [stdout]    |                            ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/predictor_state.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(u32),
[INFO] [stdout]    |     ---------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `requested_match_depth` and `condensed_hops` are never read
[INFO] [stdout]   --> src/predictor_state.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PreflateRematchInfo {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 28 |     pub requested_match_depth: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub condensed_hops: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.28s
[INFO] running `Command { std: "docker" "inspect" "6610b7a08639aba62875e2e17651fce7bd7645cea17d3a45b0b314dc36221190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6610b7a08639aba62875e2e17651fce7bd7645cea17d3a45b0b314dc36221190", kill_on_drop: false }`
[INFO] [stdout] 6610b7a08639aba62875e2e17651fce7bd7645cea17d3a45b0b314dc36221190
[INFO] checking preflate-rs-0.5.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate preflate-rs 0.5.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate preflate-rs 0.5.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preflate-rs 0.5.0
[INFO] finished tweaking crates.io crate preflate-rs 0.5.0
[INFO] tweaked toml for crates.io crate preflate-rs 0.5.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25ed31b0d800e022e2eb9a36124c83f7435be5d9fff35d706fbd81ad2534456c
[INFO] running `Command { std: "docker" "start" "-a" "25ed31b0d800e022e2eb9a36124c83f7435be5d9fff35d706fbd81ad2534456c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25ed31b0d800e022e2eb9a36124c83f7435be5d9fff35d706fbd81ad2534456c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ed31b0d800e022e2eb9a36124c83f7435be5d9fff35d706fbd81ad2534456c", kill_on_drop: false }`
[INFO] [stdout] 25ed31b0d800e022e2eb9a36124c83f7435be5d9fff35d706fbd81ad2534456c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b229c058d2c48501a388c7ba07459c80740171a8ea6e39a0e6563b85aa481367
[INFO] running `Command { std: "docker" "start" "-a" "b229c058d2c48501a388c7ba07459c80740171a8ea6e39a0e6563b85aa481367", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libdeflate-sys v1.20.0
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]     Checking cabac v0.6.0
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking anyhow v1.0.81
[INFO] [stderr]    Compiling default-boxed-derive v0.2.0
[INFO] [stderr]     Checking default-boxed v0.2.0
[INFO] [stderr]     Checking preflate-rs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 | use anyhow::{self};
[INFO] [stdout]    |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:42:18
[INFO] [stdout]    |
[INFO] [stdout] 42 |     io::{Cursor, Write},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reference_count` and `unfound_references` are never read
[INFO] [stdout]   --> src/complevel_estimator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct CompLevelInfo {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 19 |     pub zlib_compatible: bool,
[INFO] [stdout] 20 |     pub reference_count: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     pub unfound_references: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashChainTrait` is never used
[INFO] [stdout]   --> src/hash_chain.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait HashChainTrait: Default {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/predictor_state.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0(u32, u32),
[INFO] [stdout]    |     ---------------------- ^^^  ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0((), ()),
[INFO] [stdout]    |                            ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/predictor_state.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(u32),
[INFO] [stdout]    |     ---------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `requested_match_depth` and `condensed_hops` are never read
[INFO] [stdout]   --> src/predictor_state.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PreflateRematchInfo {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 28 |     pub requested_match_depth: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub condensed_hops: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 | use anyhow::{self};
[INFO] [stdout]    |              ^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]   --> src/lib.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:42:18
[INFO] [stdout]    |
[INFO] [stdout] 42 |     io::{Cursor, Write},
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reference_count` and `unfound_references` are never read
[INFO] [stdout]   --> src/complevel_estimator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct CompLevelInfo {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 19 |     pub zlib_compatible: bool,
[INFO] [stdout] 20 |     pub reference_count: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |     pub unfound_references: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashChainTrait` is never used
[INFO] [stdout]   --> src/hash_chain.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait HashChainTrait: Default {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/predictor_state.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0(u32, u32),
[INFO] [stdout]    |     ---------------------- ^^^  ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 20 |     DistanceLargerThanHop0((), ()),
[INFO] [stdout]    |                            ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/predictor_state.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(u32),
[INFO] [stdout]    |     ---------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 |     MaxChainExceeded(()),
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `requested_match_depth` and `condensed_hops` are never read
[INFO] [stdout]   --> src/predictor_state.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct PreflateRematchInfo {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 28 |     pub requested_match_depth: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub condensed_hops: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "b229c058d2c48501a388c7ba07459c80740171a8ea6e39a0e6563b85aa481367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b229c058d2c48501a388c7ba07459c80740171a8ea6e39a0e6563b85aa481367", kill_on_drop: false }`
[INFO] [stdout] b229c058d2c48501a388c7ba07459c80740171a8ea6e39a0e6563b85aa481367