[INFO] cloning repository https://github.com/Andorr/hpack-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Andorr/hpack-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndorr%2Fhpack-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndorr%2Fhpack-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7efaadcf67a3ef8dd41a6ddc36def35ca3f6bbb
[INFO] checking Andorr/hpack-rust against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndorr%2Fhpack-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Andorr/hpack-rust on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Andorr/hpack-rust
[INFO] finished tweaking git repo https://github.com/Andorr/hpack-rust
[INFO] tweaked toml for git repo https://github.com/Andorr/hpack-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Andorr/hpack-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1b00e877c86eb842f67f59979a90dfc7c6b7fee0abc4c5149f69eece860ba82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d1b00e877c86eb842f67f59979a90dfc7c6b7fee0abc4c5149f69eece860ba82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1b00e877c86eb842f67f59979a90dfc7c6b7fee0abc4c5149f69eece860ba82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b00e877c86eb842f67f59979a90dfc7c6b7fee0abc4c5149f69eece860ba82", kill_on_drop: false }`
[INFO] [stdout] d1b00e877c86eb842f67f59979a90dfc7c6b7fee0abc4c5149f69eece860ba82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2545f2969a1d12571bb06bb5366d27ccc72362bf84cf3a62cf6399ec860868b3
[INFO] running `Command { std: "docker" "start" "-a" "2545f2969a1d12571bb06bb5366d27ccc72362bf84cf3a62cf6399ec860868b3", kill_on_drop: false }`
[INFO] [stderr]     Checking hpack-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `new_header_field`
[INFO] [stdout]  --> src/hpack/context.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::hpack::{decoder, new_header_field};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dynamic::HeaderField`
[INFO] [stdout]  --> src/hpack/encoder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use dynamic::HeaderField;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{BorrowMut, Borrow};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::cell::{RefCell, Ref};
[INFO] [stdout]   |                 ^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `new_header_field`
[INFO] [stdout]  --> src/hpack/context.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::hpack::{decoder, new_header_field};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dynamic::HeaderField`
[INFO] [stdout]  --> src/hpack/encoder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use dynamic::HeaderField;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{BorrowMut, Borrow};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/hpack/huffman/mod.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::cell::{RefCell, Ref};
[INFO] [stdout]   |                 ^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut ctx = hpack::new_context(10, 10);
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut ctx = hpack::new_context(10, 10);
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/hpack/decoder.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/hpack/decoder.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut ctx = hpack::new_context(10, 10);
[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/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut ctx = hpack::new_context(10, 10);
[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/hpack/huffman/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut j = huff_code.length;
[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/hpack/huffman/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut j = huff_code.length;
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `encoder`
[INFO] [stdout]  --> src/hpack/context.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     encoder: encoder::Encoder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `decoder`
[INFO] [stdout]  --> src/hpack/context.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     decoder: decoder::Decoder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_size`
[INFO] [stdout]   --> src/hpack/dynamic.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eviction_check`
[INFO] [stdout]   --> src/hpack/dynamic.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn eviction_check(&mut self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evict`
[INFO] [stdout]   --> src/hpack/dynamic.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn evict(&mut self, n: usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/hpack/dynamic.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn get(&self, index: usize) -> Result<&HeaderField, ()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_max_size`
[INFO] [stdout]   --> src/hpack/dynamic.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn set_max_size(&mut self, size: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_right_node`
[INFO] [stdout]   --> src/hpack/huffman/mod.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn has_right_node(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_left_node`
[INFO] [stdout]   --> src/hpack/huffman/mod.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn has_left_node(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dynT` should have a snake case name
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut dynT = hpack::new_dynamic_table(10);
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `dyn_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `encoder`
[INFO] [stdout]  --> src/hpack/context.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     encoder: encoder::Encoder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `decoder`
[INFO] [stdout]  --> src/hpack/context.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     decoder: decoder::Decoder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_size`
[INFO] [stdout]   --> src/hpack/dynamic.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eviction_check`
[INFO] [stdout]   --> src/hpack/dynamic.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn eviction_check(&mut self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evict`
[INFO] [stdout]   --> src/hpack/dynamic.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn evict(&mut self, n: usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/hpack/dynamic.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn get(&self, index: usize) -> Result<&HeaderField, ()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_max_size`
[INFO] [stdout]   --> src/hpack/dynamic.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn set_max_size(&mut self, size: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_right_node`
[INFO] [stdout]   --> src/hpack/huffman/mod.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn has_right_node(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_left_node`
[INFO] [stdout]   --> src/hpack/huffman/mod.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn has_left_node(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dynT` should have a snake case name
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut dynT = hpack::new_dynamic_table(10);
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `dyn_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "2545f2969a1d12571bb06bb5366d27ccc72362bf84cf3a62cf6399ec860868b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2545f2969a1d12571bb06bb5366d27ccc72362bf84cf3a62cf6399ec860868b3", kill_on_drop: false }`
[INFO] [stdout] 2545f2969a1d12571bb06bb5366d27ccc72362bf84cf3a62cf6399ec860868b3