[INFO] cloning repository https://github.com/PierreZ/brokkr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PierreZ/brokkr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPierreZ%2Fbrokkr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPierreZ%2Fbrokkr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3f300850e73f8766db29dff1175e41d941ca5c4
[INFO] checking PierreZ/brokkr against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPierreZ%2Fbrokkr" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PierreZ/brokkr on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PierreZ/brokkr
[INFO] finished tweaking git repo https://github.com/PierreZ/brokkr
[INFO] tweaked toml for git repo https://github.com/PierreZ/brokkr written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/PierreZ/brokkr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.2.7
[INFO] [stderr]   Downloaded serde_json v1.0.16
[INFO] [stderr]   Downloaded atty v0.2.9
[INFO] [stderr]   Downloaded proc-macro2 v0.3.7
[INFO] [stderr]   Downloaded syn v0.13.1
[INFO] [stderr]   Downloaded tar v0.4.15
[INFO] [stderr]   Downloaded xattr v0.2.1
[INFO] [stderr]   Downloaded structopt v0.2.7
[INFO] [stderr]   Downloaded filetime v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] ab27292b8cf0319df1820adbd5061cf2950828bbb46bbab0d1e7e71ed97165fc
[INFO] running `Command { std: "docker" "start" "-a" "ab27292b8cf0319df1820adbd5061cf2950828bbb46bbab0d1e7e71ed97165fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab27292b8cf0319df1820adbd5061cf2950828bbb46bbab0d1e7e71ed97165fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab27292b8cf0319df1820adbd5061cf2950828bbb46bbab0d1e7e71ed97165fc", kill_on_drop: false }`
[INFO] [stdout] ab27292b8cf0319df1820adbd5061cf2950828bbb46bbab0d1e7e71ed97165fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--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] c5b9b4fb574368a71e5f393f11d2d9d5942804cc841be957da8158a98a2ac4dd
[INFO] running `Command { std: "docker" "start" "-a" "c5b9b4fb574368a71e5f393f11d2d9d5942804cc841be957da8158a98a2ac4dd", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking bitflags v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking serde v1.0.43
[INFO] [stderr]    Compiling proc-macro2 v0.3.7
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]     Checking filetime v0.2.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking xattr v0.2.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking tar v0.4.15
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling structopt-derive v0.2.7
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.43
[INFO] [stderr]     Checking structopt v0.2.7
[INFO] [stderr]     Checking brokkr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/docker.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 | ) -> Result<(Vec<PathBuf>), io::Error> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/docker.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 | ) -> Result<(Vec<PathBuf>), io::Error> {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.46s
[INFO] running `Command { std: "docker" "inspect" "c5b9b4fb574368a71e5f393f11d2d9d5942804cc841be957da8158a98a2ac4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b9b4fb574368a71e5f393f11d2d9d5942804cc841be957da8158a98a2ac4dd", kill_on_drop: false }`
[INFO] [stdout] c5b9b4fb574368a71e5f393f11d2d9d5942804cc841be957da8158a98a2ac4dd