[INFO] cloning repository https://github.com/sarik/rusthttplistener
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sarik/rusthttplistener" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarik%2Frusthttplistener", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarik%2Frusthttplistener'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b224d9c3190ccb02238455a521cfc278ac8ff4ec
[INFO] checking sarik/rusthttplistener against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarik%2Frusthttplistener" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sarik/rusthttplistener on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sarik/rusthttplistener
[INFO] finished tweaking git repo https://github.com/sarik/rusthttplistener
[INFO] tweaked toml for git repo https://github.com/sarik/rusthttplistener written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/sarik/rusthttplistener already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d19a33c56df5b8a1e67d1e4ff501d9712827dd1c1a731263c1fe99f4ff88ed96
[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" "d19a33c56df5b8a1e67d1e4ff501d9712827dd1c1a731263c1fe99f4ff88ed96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d19a33c56df5b8a1e67d1e4ff501d9712827dd1c1a731263c1fe99f4ff88ed96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19a33c56df5b8a1e67d1e4ff501d9712827dd1c1a731263c1fe99f4ff88ed96", kill_on_drop: false }`
[INFO] [stdout] d19a33c56df5b8a1e67d1e4ff501d9712827dd1c1a731263c1fe99f4ff88ed96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a885808df633c225c66114eb6eb2f3260e234eb5645dbf5007ce20ef3128ff7
[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" "9a885808df633c225c66114eb6eb2f3260e234eb5645dbf5007ce20ef3128ff7", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust-httplistener v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (2 fixes)
[INFO] [stdout] warning: struct is never constructed: `Response`
[INFO] [stdout]  --> src/http/response.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Response {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/http/query_string.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'a>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StatusCode`
[INFO] [stdout]  --> src/http/status_code.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum StatusCode {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `statusCode` should have a snake case name
[INFO] [stdout]  --> src/http/response.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     statusCode: StatusCode,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case: `status_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Response`
[INFO] [stdout]  --> src/http/response.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Response {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/http/query_string.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'a>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StatusCode`
[INFO] [stdout]  --> src/http/status_code.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum StatusCode {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `statusCode` should have a snake case name
[INFO] [stdout]  --> src/http/response.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     statusCode: StatusCode,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case: `status_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust-httplistener v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: struct is never constructed: `Response`
[INFO] [stdout]  --> src/http/response.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Response {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/http/query_string.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'a>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StatusCode`
[INFO] [stdout]  --> src/http/status_code.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum StatusCode {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `statusCode` should have a snake case name
[INFO] [stdout]  --> src/http/response.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     statusCode: StatusCode,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case: `status_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Response`
[INFO] [stdout]  --> src/http/response.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Response {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/http/query_string.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'a>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StatusCode`
[INFO] [stdout]  --> src/http/status_code.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum StatusCode {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `statusCode` should have a snake case name
[INFO] [stdout]  --> src/http/response.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     statusCode: StatusCode,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case: `status_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "9a885808df633c225c66114eb6eb2f3260e234eb5645dbf5007ce20ef3128ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a885808df633c225c66114eb6eb2f3260e234eb5645dbf5007ce20ef3128ff7", kill_on_drop: false }`
[INFO] [stdout] 9a885808df633c225c66114eb6eb2f3260e234eb5645dbf5007ce20ef3128ff7