[INFO] fetching crate compeg 0.4.0...
[INFO] checking compeg-0.4.0 against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470
[INFO] extracting crate compeg 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate compeg 0.4.0
[INFO] finished tweaking crates.io crate compeg 0.4.0
[INFO] tweaked toml for crates.io crate compeg 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate compeg 0.4.0 on toolchain e117153a45c546e883c1f91d82611775fcaeffe0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate compeg 0.4.0 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 909e94d00b38d1203c4bc30e32a935a889d4bb576d6df877730c222df9385903
[INFO] running `Command { std: "docker" "start" "-a" "909e94d00b38d1203c4bc30e32a935a889d4bb576d6df877730c222df9385903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "909e94d00b38d1203c4bc30e32a935a889d4bb576d6df877730c222df9385903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909e94d00b38d1203c4bc30e32a935a889d4bb576d6df877730c222df9385903", kill_on_drop: false }`
[INFO] [stdout] 909e94d00b38d1203c4bc30e32a935a889d4bb576d6df877730c222df9385903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7508aaa3dd0944c3a43d41a3dc96973394b6c5a0c27988bfb741c8df13823c3c
[INFO] running `Command { std: "docker" "start" "-a" "7508aaa3dd0944c3a43d41a3dc96973394b6c5a0c27988bfb741c8df13823c3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/huffman.rs:284:8
[INFO] [stdout]     |
[INFO] [stdout] 284 | struct L1Entry(u16);
[INFO] [stdout]     |        ^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/huffman.rs:283:1
[INFO] [stdout]     |
[INFO] [stdout] 283 | / #[repr(C)]
[INFO] [stdout] 284 | | struct L1Entry(u16);
[INFO] [stdout]     | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/huffman.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 332 | pub struct LookupResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/huffman.rs:331:1
[INFO] [stdout]     |
[INFO] [stdout] 331 | / #[repr(C)]
[INFO] [stdout] 332 | | pub struct LookupResult {
[INFO] [stdout] 333 | |     /// Decoded value. Meaning depends on table class (AC/DC).
[INFO] [stdout] 334 | |     value: u8,
[INFO] [stdout] 335 | |     /// Length of the huffman code in bits (number of bits that need to be consumed from the input).
[INFO] [stdout] 336 | |     bits: u8,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/metadata.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct QTable {
[INFO] [stdout]   |            ^^^^^^ field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/metadata.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / #[repr(C)]
[INFO] [stdout] 5 | | pub struct QTable {
[INFO] [stdout] 6 | |     pub values: [u32; 64], // 64 bytes, zero-padded
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/metadata.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Component {
[INFO] [stdout]    |            ^^^^^^^^^ field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/metadata.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / #[repr(C)]
[INFO] [stdout] 11 | | pub struct Component {
[INFO] [stdout] 12 | |     pub vsample: u32,
[INFO] [stdout] 13 | |     pub hsample: u32,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     pub achuff: u32,
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/metadata.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Metadata {
[INFO] [stdout]    |            ^^^^^^^^ field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/metadata.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / #[repr(C)]
[INFO] [stdout] 23 | | pub struct Metadata {
[INFO] [stdout] 24 | |     pub qtables: [QTable; 4],
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     pub retained_coefficients: u32,
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/huffman.rs:284:8
[INFO] [stdout]     |
[INFO] [stdout] 284 | struct L1Entry(u16);
[INFO] [stdout]     |        ^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/huffman.rs:283:1
[INFO] [stdout]     |
[INFO] [stdout] 283 | / #[repr(C)]
[INFO] [stdout] 284 | | struct L1Entry(u16);
[INFO] [stdout]     | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/huffman.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 332 | pub struct LookupResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^ field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]    --> src/huffman.rs:331:1
[INFO] [stdout]     |
[INFO] [stdout] 331 | / #[repr(C)]
[INFO] [stdout] 332 | | pub struct LookupResult {
[INFO] [stdout] 333 | |     /// Decoded value. Meaning depends on table class (AC/DC).
[INFO] [stdout] 334 | |     value: u8,
[INFO] [stdout] 335 | |     /// Length of the huffman code in bits (number of bits that need to be consumed from the input).
[INFO] [stdout] 336 | |     bits: u8,
[INFO] [stdout] 337 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/metadata.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct QTable {
[INFO] [stdout]   |            ^^^^^^ field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/metadata.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / #[repr(C)]
[INFO] [stdout] 5 | | pub struct QTable {
[INFO] [stdout] 6 | |     pub values: [u32; 64], // 64 bytes, zero-padded
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/metadata.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Component {
[INFO] [stdout]    |            ^^^^^^^^^ field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/metadata.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / #[repr(C)]
[INFO] [stdout] 11 | | pub struct Component {
[INFO] [stdout] 12 | |     pub vsample: u32,
[INFO] [stdout] 13 | |     pub hsample: u32,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     pub achuff: u32,
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/metadata.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Metadata {
[INFO] [stdout]    |            ^^^^^^^^ field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]   --> src/metadata.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / #[repr(C)]
[INFO] [stdout] 23 | | pub struct Metadata {
[INFO] [stdout] 24 | |     pub qtables: [QTable; 4],
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     pub retained_coefficients: u32,
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "7508aaa3dd0944c3a43d41a3dc96973394b6c5a0c27988bfb741c8df13823c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7508aaa3dd0944c3a43d41a3dc96973394b6c5a0c27988bfb741c8df13823c3c", kill_on_drop: false }`
[INFO] [stdout] 7508aaa3dd0944c3a43d41a3dc96973394b6c5a0c27988bfb741c8df13823c3c
