[INFO] cloning repository https://github.com/moomou/topt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moomou/topt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoomou%2Ftopt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoomou%2Ftopt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78cb902857704b9d24beb872346f9036b659f931
[INFO] checking moomou/topt against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoomou%2Ftopt" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moomou/topt 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/moomou/topt
[INFO] finished tweaking git repo https://github.com/moomou/topt
[INFO] tweaked toml for git repo https://github.com/moomou/topt written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/moomou/topt 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] warning: unused manifest key: dependencies.qrcode.commit
[INFO] [stderr]     Updating git repository `https://github.com/kennytm/qrcode-rust`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding v2.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 390b5f8fe950cb0d39ca1f178a76e10185534291768ca6b8320d315256183edf
[INFO] running `Command { std: "docker" "start" "-a" "390b5f8fe950cb0d39ca1f178a76e10185534291768ca6b8320d315256183edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "390b5f8fe950cb0d39ca1f178a76e10185534291768ca6b8320d315256183edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390b5f8fe950cb0d39ca1f178a76e10185534291768ca6b8320d315256183edf", kill_on_drop: false }`
[INFO] [stdout] 390b5f8fe950cb0d39ca1f178a76e10185534291768ca6b8320d315256183edf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] b71cca5f331a00e1ca1f24ecadd64e55299bbfa7ab4242b64b4ae25c842b4d0e
[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" "b71cca5f331a00e1ca1f24ecadd64e55299bbfa7ab4242b64b4ae25c842b4d0e", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.qrcode.commit
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking data-encoding v2.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking image v0.23.0
[INFO] [stderr]     Checking qrcode v0.12.0 (https://github.com/kennytm/qrcode-rust#6fe4b523)
[INFO] [stderr]     Checking topt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.84s
[INFO] running `Command { std: "docker" "inspect" "b71cca5f331a00e1ca1f24ecadd64e55299bbfa7ab4242b64b4ae25c842b4d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71cca5f331a00e1ca1f24ecadd64e55299bbfa7ab4242b64b4ae25c842b4d0e", kill_on_drop: false }`
[INFO] [stdout] b71cca5f331a00e1ca1f24ecadd64e55299bbfa7ab4242b64b4ae25c842b4d0e