[INFO] crate no_proto 0.0.0-beta.3 is already in cache
[INFO] testing no_proto-0.0.0-beta.3 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate no_proto 0.0.0-beta.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate no_proto 0.0.0-beta.3 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate no_proto 0.0.0-beta.3
[INFO] finished tweaking crates.io crate no_proto 0.0.0-beta.3
[INFO] tweaked toml for crates.io crate no_proto 0.0.0-beta.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 298a98d616798fc1523cd18739bf7121ab490b0e286d14f92c963624d096cde9
[INFO] running `"docker" "start" "-a" "298a98d616798fc1523cd18739bf7121ab490b0e286d14f92c963624d096cde9"`
[INFO] [stderr]    Compiling no_proto v0.0.0-beta.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `"docker" "inspect" "298a98d616798fc1523cd18739bf7121ab490b0e286d14f92c963624d096cde9"`
[INFO] running `"docker" "rm" "-f" "298a98d616798fc1523cd18739bf7121ab490b0e286d14f92c963624d096cde9"`
[INFO] [stdout] 298a98d616798fc1523cd18739bf7121ab490b0e286d14f92c963624d096cde9
[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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 71245ac9f78bd8cf0e01c46ced78859af9e1567a20f0ef8e86eff944853e2da9
[INFO] running `"docker" "start" "-a" "71245ac9f78bd8cf0e01c46ced78859af9e1567a20f0ef8e86eff944853e2da9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling no_proto v0.0.0-beta.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "71245ac9f78bd8cf0e01c46ced78859af9e1567a20f0ef8e86eff944853e2da9"`
[INFO] running `"docker" "rm" "-f" "71245ac9f78bd8cf0e01c46ced78859af9e1567a20f0ef8e86eff944853e2da9"`
[INFO] [stdout] 71245ac9f78bd8cf0e01c46ced78859af9e1567a20f0ef8e86eff944853e2da9
[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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d325a0c3f04e362b524c10c03931daae87274ce702c0f7df1197b19b744f37a5
[INFO] running `"docker" "start" "-a" "d325a0c3f04e362b524c10c03931daae87274ce702c0f7df1197b19b744f37a5"`
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/lib.rs:243:27
[INFO] [stderr]     |
[INFO] [stderr] 243 |     pub fn to_json(&self, buffer: &Vec<u8>) -> String {
[INFO] [stderr]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/no_proto-d162b2a0e54af92e
[INFO] [stderr]    Doc-tests no_proto
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - NP_Factory (line 182) ... ok
[INFO] [stdout] test src/lib.rs -  (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d325a0c3f04e362b524c10c03931daae87274ce702c0f7df1197b19b744f37a5"`
[INFO] running `"docker" "rm" "-f" "d325a0c3f04e362b524c10c03931daae87274ce702c0f7df1197b19b744f37a5"`
[INFO] [stdout] d325a0c3f04e362b524c10c03931daae87274ce702c0f7df1197b19b744f37a5