[INFO] updating cached repository https://github.com/ameernormie/rust_lang_concepts
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/ameernormie/rust_lang_concepts
[INFO] [stderr]    a5bb380..5f42c7e  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f42c7e67070a4406280d3a0a0a5b33c8c5bf4ca
[INFO] testing ameernormie/rust_lang_concepts against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fameernormie%2Frust_lang_concepts" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ameernormie/rust_lang_concepts on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ameernormie/rust_lang_concepts
[INFO] finished tweaking git repo https://github.com/ameernormie/rust_lang_concepts
[INFO] tweaked toml for git repo https://github.com/ameernormie/rust_lang_concepts written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ameernormie/rust_lang_concepts already has a lockfile, it will not be regenerated
[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] 46f33851678db9b8332858f32e690c5337a89f6e63589a61accce8e323a093b5
[INFO] running `"docker" "start" "-a" "46f33851678db9b8332858f32e690c5337a89f6e63589a61accce8e323a093b5"`
[INFO] [stderr]    Compiling rust_lang_concepts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `"docker" "inspect" "46f33851678db9b8332858f32e690c5337a89f6e63589a61accce8e323a093b5"`
[INFO] running `"docker" "rm" "-f" "46f33851678db9b8332858f32e690c5337a89f6e63589a61accce8e323a093b5"`
[INFO] [stdout] 46f33851678db9b8332858f32e690c5337a89f6e63589a61accce8e323a093b5
[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] 926c58060aa7f82254b4b8400e83272b05e012e26bee30621730f463c6272ff5
[INFO] running `"docker" "start" "-a" "926c58060aa7f82254b4b8400e83272b05e012e26bee30621730f463c6272ff5"`
[INFO] [stderr]    Compiling rust_lang_concepts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]   --> src/closures.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let v1 = c.value(1);
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[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 0.96s
[INFO] running `"docker" "inspect" "926c58060aa7f82254b4b8400e83272b05e012e26bee30621730f463c6272ff5"`
[INFO] running `"docker" "rm" "-f" "926c58060aa7f82254b4b8400e83272b05e012e26bee30621730f463c6272ff5"`
[INFO] [stdout] 926c58060aa7f82254b4b8400e83272b05e012e26bee30621730f463c6272ff5
[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] 6bc6fe6f8b939447819a36e9307af11093f7824b1c0f066209379b9474ae862b
[INFO] running `"docker" "start" "-a" "6bc6fe6f8b939447819a36e9307af11093f7824b1c0f066209379b9474ae862b"`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/closures.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let v1 = c.value(1);
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[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 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_lang_concepts-22b14910214766b9
[INFO] [stdout] test closures::call_cacher_with_different_values ... ok
[INFO] [stdout] test iterators::counter_next_method ... 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" "6bc6fe6f8b939447819a36e9307af11093f7824b1c0f066209379b9474ae862b"`
[INFO] running `"docker" "rm" "-f" "6bc6fe6f8b939447819a36e9307af11093f7824b1c0f066209379b9474ae862b"`
[INFO] [stdout] 6bc6fe6f8b939447819a36e9307af11093f7824b1c0f066209379b9474ae862b