[INFO] cloning repository https://github.com/Nida759/nida_khan-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nida759/nida_khan-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNida759%2Fnida_khan-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNida759%2Fnida_khan-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79db918d1452c778cd3ada5973999a5597ec4892
[INFO] testing Nida759/nida_khan-1 against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNida759%2Fnida_khan-1" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nida759/nida_khan-1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nida759/nida_khan-1
[INFO] finished tweaking git repo https://github.com/Nida759/nida_khan-1
[INFO] tweaked toml for git repo https://github.com/Nida759/nida_khan-1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Nida759/nida_khan-1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c2eeb73d2aa1fc6705b7d74911cf5cd95d61dde824cf5d1c31781b9b304b3c2
[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" "2c2eeb73d2aa1fc6705b7d74911cf5cd95d61dde824cf5d1c31781b9b304b3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c2eeb73d2aa1fc6705b7d74911cf5cd95d61dde824cf5d1c31781b9b304b3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c2eeb73d2aa1fc6705b7d74911cf5cd95d61dde824cf5d1c31781b9b304b3c2", kill_on_drop: false }`
[INFO] [stdout] 2c2eeb73d2aa1fc6705b7d74911cf5cd95d61dde824cf5d1c31781b9b304b3c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 929855f363e95574773647a59985309d4154b678bf65cd2bef5c4009e515879e
[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" "929855f363e95574773647a59985309d4154b678bf65cd2bef5c4009e515879e", kill_on_drop: false }`
[INFO] [stderr]    Compiling Chap10-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Chap10_3` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `chap10_3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "929855f363e95574773647a59985309d4154b678bf65cd2bef5c4009e515879e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929855f363e95574773647a59985309d4154b678bf65cd2bef5c4009e515879e", kill_on_drop: false }`
[INFO] [stdout] 929855f363e95574773647a59985309d4154b678bf65cd2bef5c4009e515879e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--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] b7cd7da4ec7e2001ebe1fe1e9f1bf3479d458a866a64018acd8ff99b7557d876
[INFO] running `Command { std: "docker" "start" "-a" "b7cd7da4ec7e2001ebe1fe1e9f1bf3479d458a866a64018acd8ff99b7557d876", kill_on_drop: false }`
[INFO] [stderr]    Compiling Chap10-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Chap10_3` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `chap10_3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "b7cd7da4ec7e2001ebe1fe1e9f1bf3479d458a866a64018acd8ff99b7557d876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7cd7da4ec7e2001ebe1fe1e9f1bf3479d458a866a64018acd8ff99b7557d876", kill_on_drop: false }`
[INFO] [stdout] b7cd7da4ec7e2001ebe1fe1e9f1bf3479d458a866a64018acd8ff99b7557d876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7940caeffd1a7ac72082165927f3e3284777294b99b2fac20aff60d203f74abd
[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" "7940caeffd1a7ac72082165927f3e3284777294b99b2fac20aff60d203f74abd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: crate `Chap10_3` should have a snake case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = help: convert the identifier to snake case: `chap10_3`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: `Chap10-3` (bin "Chap10-3" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Chap10_3-f4e9360f0a951d4a)
[INFO] running `Command { std: "docker" "inspect" "7940caeffd1a7ac72082165927f3e3284777294b99b2fac20aff60d203f74abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7940caeffd1a7ac72082165927f3e3284777294b99b2fac20aff60d203f74abd", kill_on_drop: false }`
[INFO] [stdout] 7940caeffd1a7ac72082165927f3e3284777294b99b2fac20aff60d203f74abd