[INFO] cloning repository https://github.com/brinchj/rustfest-fastware
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brinchj/rustfest-fastware" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrinchj%2Frustfest-fastware", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrinchj%2Frustfest-fastware'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fc8894a9efddf3a679558b3ef32fb997dbd4772
[INFO] testing brinchj/rustfest-fastware against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrinchj%2Frustfest-fastware" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brinchj/rustfest-fastware on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brinchj/rustfest-fastware
[INFO] finished tweaking git repo https://github.com/brinchj/rustfest-fastware
[INFO] tweaked toml for git repo https://github.com/brinchj/rustfest-fastware written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/brinchj/rustfest-fastware already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", 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] 62576c10f3c103b24287a5bb598cfa6120b648d9a29d0ed983d86862ffa46d29
[INFO] running `Command { std: "docker" "start" "-a" "62576c10f3c103b24287a5bb598cfa6120b648d9a29d0ed983d86862ffa46d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62576c10f3c103b24287a5bb598cfa6120b648d9a29d0ed983d86862ffa46d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62576c10f3c103b24287a5bb598cfa6120b648d9a29d0ed983d86862ffa46d29", kill_on_drop: false }`
[INFO] [stdout] 62576c10f3c103b24287a5bb598cfa6120b648d9a29d0ed983d86862ffa46d29
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 587cc82700560beb49c733ddc5c228e5d057e6c0b68d87f289a06c3fdcf4dce0
[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" "587cc82700560beb49c733ddc5c228e5d057e6c0b68d87f289a06c3fdcf4dce0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling im v10.2.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling combine v3.2.0
[INFO] [stderr]    Compiling rustfest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.75s
[INFO] running `Command { std: "docker" "inspect" "587cc82700560beb49c733ddc5c228e5d057e6c0b68d87f289a06c3fdcf4dce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587cc82700560beb49c733ddc5c228e5d057e6c0b68d87f289a06c3fdcf4dce0", kill_on_drop: false }`
[INFO] [stdout] 587cc82700560beb49c733ddc5c228e5d057e6c0b68d87f289a06c3fdcf4dce0
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5afb4d476c43b41cdf419d2a69f5df7db4c5439646e010740eb60f2a80e11ab1
[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" "5afb4d476c43b41cdf419d2a69f5df7db4c5439646e010740eb60f2a80e11ab1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustfest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:387:17
[INFO] [stdout]     |
[INFO] [stdout] 387 |                 black_box(eval(&line, &mut env));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "5afb4d476c43b41cdf419d2a69f5df7db4c5439646e010740eb60f2a80e11ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afb4d476c43b41cdf419d2a69f5df7db4c5439646e010740eb60f2a80e11ab1", kill_on_drop: false }`
[INFO] [stdout] 5afb4d476c43b41cdf419d2a69f5df7db4c5439646e010740eb60f2a80e11ab1
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a842e2ead77615f2c48be35282d790a76f0c79b1f16bc88fe7c1ca24430a22c4
[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" "a842e2ead77615f2c48be35282d790a76f0c79b1f16bc88fe7c1ca24430a22c4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stdout] running 9 tests
[INFO] [stderr]    --> src/lib.rs:387:17
[INFO] [stdout] test benches::parse_real_code ... ok
[INFO] [stderr]     |
[INFO] [stdout] test benches::parse_deep_nesting ... ok
[INFO] [stderr] 387 |                 black_box(eval(&line, &mut env));
[INFO] [stdout] test benches::run_nested_func ... ok
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test benches::parse_literals ... ok
[INFO] [stderr]     |
[INFO] [stdout] test benches::parse_nested_func ... ok
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test benches::parse_many_variables ... ok
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] test benches::run_real_code ... ok
[INFO] [stderr] 
[INFO] [stdout] test benches::run_deep_nesting ... ok
[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/rustfest-b2cff4c44643e00c
[INFO] [stdout] test benches::run_many_variables ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustfest
[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] running `Command { std: "docker" "inspect" "a842e2ead77615f2c48be35282d790a76f0c79b1f16bc88fe7c1ca24430a22c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a842e2ead77615f2c48be35282d790a76f0c79b1f16bc88fe7c1ca24430a22c4", kill_on_drop: false }`
[INFO] [stdout] a842e2ead77615f2c48be35282d790a76f0c79b1f16bc88fe7c1ca24430a22c4