[INFO] crate medusa 0.3.0 is already in cache
[INFO] checking medusa-0.3.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate medusa 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate medusa 0.3.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate medusa 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate medusa 0.3.0
[INFO] tweaked toml for crates.io crate medusa 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate medusa 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e92546390363ccaf2346ec19ccdfdaf0e64ba478b1d2740ff238bef227e277f
[INFO] running `"docker" "start" "-a" "1e92546390363ccaf2346ec19ccdfdaf0e64ba478b1d2740ff238bef227e277f"`
[INFO] [stderr]     Checking medusa v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stderr]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> examples/functions/mod.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stderr]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> examples/functions/mod.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `show_help`
[INFO] [stderr]  --> examples/functions/mod.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_version`
[INFO] [stderr]   --> examples/functions/mod.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_twice`
[INFO] [stderr]   --> examples/functions/mod.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_twice`
[INFO] [stderr]   --> examples/functions/mod.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn print_twice(handler: &Handler) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn echo(handler: &Handler, payload: String) {
[INFO] [stderr]   |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]  --> examples/functions/mod.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn show_help(handler: &Handler) {
[INFO] [stderr]   |                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handler`
[INFO] [stderr]   --> examples/functions/mod.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn get_version(handler: &Handler) {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "1e92546390363ccaf2346ec19ccdfdaf0e64ba478b1d2740ff238bef227e277f"`
[INFO] running `"docker" "rm" "-f" "1e92546390363ccaf2346ec19ccdfdaf0e64ba478b1d2740ff238bef227e277f"`
[INFO] [stdout] 1e92546390363ccaf2346ec19ccdfdaf0e64ba478b1d2740ff238bef227e277f