[INFO] cloning repository https://github.com/hellboxpy/hell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hellboxpy/hell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellboxpy%2Fhell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellboxpy%2Fhell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71d15c2d9e1a3bc0f1278d62031b2eb8d716ff7c
[INFO] testing hellboxpy/hell against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhellboxpy%2Fhell" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hellboxpy/hell on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hellboxpy/hell
[INFO] finished tweaking git repo https://github.com/hellboxpy/hell
[INFO] tweaked toml for git repo https://github.com/hellboxpy/hell written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/hellboxpy/hell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 6bf183c89950e609be52547540bce00d8d18ad482e50aee227f12e2d928941f5
[INFO] running `Command { std: "docker" "start" "-a" "6bf183c89950e609be52547540bce00d8d18ad482e50aee227f12e2d928941f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf183c89950e609be52547540bce00d8d18ad482e50aee227f12e2d928941f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf183c89950e609be52547540bce00d8d18ad482e50aee227f12e2d928941f5", kill_on_drop: false }`
[INFO] [stdout] 6bf183c89950e609be52547540bce00d8d18ad482e50aee227f12e2d928941f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a8b02ca4bc8dca59896fa16cd4dcafa50247e8c5fc9413504d19dc4e5edd8aa
[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" "4a8b02ca4bc8dca59896fa16cd4dcafa50247e8c5fc9413504d19dc4e5edd8aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling hell v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/main.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stdout]     |                   ^^                                                   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 102 -         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stdout] 102 +         .and_then(|_| create_manifest(&environment.manifest_filename))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/main.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stdout]     |                   ^^                                                 ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 101 -         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stdout] 101 +         .and_then(|_| install_package(&environment.hellbox_package))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "4a8b02ca4bc8dca59896fa16cd4dcafa50247e8c5fc9413504d19dc4e5edd8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8b02ca4bc8dca59896fa16cd4dcafa50247e8c5fc9413504d19dc4e5edd8aa", kill_on_drop: false }`
[INFO] [stdout] 4a8b02ca4bc8dca59896fa16cd4dcafa50247e8c5fc9413504d19dc4e5edd8aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff361c0a20b0ab237ee585940cb03ca039d5c29ac430f4411641264beec8bb67
[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" "ff361c0a20b0ab237ee585940cb03ca039d5c29ac430f4411641264beec8bb67", kill_on_drop: false }`
[INFO] [stderr]    Compiling hell v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/main.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stdout]     |                   ^^                                                   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 102 -         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stdout] 102 +         .and_then(|_| create_manifest(&environment.manifest_filename))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/main.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stdout]     |                   ^^                                                 ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 101 -         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stdout] 101 +         .and_then(|_| install_package(&environment.hellbox_package))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "ff361c0a20b0ab237ee585940cb03ca039d5c29ac430f4411641264beec8bb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff361c0a20b0ab237ee585940cb03ca039d5c29ac430f4411641264beec8bb67", kill_on_drop: false }`
[INFO] [stdout] ff361c0a20b0ab237ee585940cb03ca039d5c29ac430f4411641264beec8bb67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dbcccb07ba67951210dfaab956aa462ce42c1fc782ebe59170a9151c3298733
[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" "2dbcccb07ba67951210dfaab956aa462ce42c1fc782ebe59170a9151c3298733", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:102:19
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 102 |         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stdout] 
[INFO] [stderr]     |                   ^^                                                   ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr] 102 -         .and_then({ |_| create_manifest(&environment.manifest_filename) })
[INFO] [stderr] 102 +         .and_then(|_| create_manifest(&environment.manifest_filename))
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/main.rs:101:19
[INFO] [stderr]     |
[INFO] [stderr] 101 |         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stderr]     |                   ^^                                                 ^^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr] 101 -         .and_then({ |_| install_package(&environment.hellbox_package) })
[INFO] [stderr] 101 +         .and_then(|_| install_package(&environment.hellbox_package))
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `hell` (bin "hell" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hell-c6ffd5357fc66e4b)
[INFO] running `Command { std: "docker" "inspect" "2dbcccb07ba67951210dfaab956aa462ce42c1fc782ebe59170a9151c3298733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbcccb07ba67951210dfaab956aa462ce42c1fc782ebe59170a9151c3298733", kill_on_drop: false }`
[INFO] [stdout] 2dbcccb07ba67951210dfaab956aa462ce42c1fc782ebe59170a9151c3298733