[INFO] cloning repository https://github.com/ledger-rs/incubator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ledger-rs/incubator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledger-rs%2Fincubator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledger-rs%2Fincubator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 237b07e683504afd1ff233f83c8359d6f8958cbb
[INFO] checking ledger-rs/incubator against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledger-rs%2Fincubator" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ledger-rs/incubator on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ledger-rs/incubator
[INFO] finished tweaking git repo https://github.com/ledger-rs/incubator
[INFO] tweaked toml for git repo https://github.com/ledger-rs/incubator written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ledger-rs/incubator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates v2.1.4
[INFO] [stderr]   Downloaded assert_cmd v2.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d088c69c0ec59bbd46c23dd491bb1572e700c73a810b41406aaedeb978f9808a
[INFO] running `Command { std: "docker" "start" "-a" "d088c69c0ec59bbd46c23dd491bb1572e700c73a810b41406aaedeb978f9808a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d088c69c0ec59bbd46c23dd491bb1572e700c73a810b41406aaedeb978f9808a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d088c69c0ec59bbd46c23dd491bb1572e700c73a810b41406aaedeb978f9808a", kill_on_drop: false }`
[INFO] [stdout] d088c69c0ec59bbd46c23dd491bb1572e700c73a810b41406aaedeb978f9808a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 801fbc609a9f9ca50e2b9e8ed208d979ef41b177de2459fa23f07c2ca10bb930
[INFO] running `Command { std: "docker" "start" "-a" "801fbc609a9f9ca50e2b9e8ed208d979ef41b177de2459fa23f07c2ca10bb930", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking predicates-core v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking termtree v0.4.0
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking ledger-cli-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates-tree v1.0.7
[INFO] [stderr]     Checking bstr v1.1.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking predicates v2.1.4
[INFO] [stderr]     Checking assert_cmd v2.0.7
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "801fbc609a9f9ca50e2b9e8ed208d979ef41b177de2459fa23f07c2ca10bb930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801fbc609a9f9ca50e2b9e8ed208d979ef41b177de2459fa23f07c2ca10bb930", kill_on_drop: false }`
[INFO] [stdout] 801fbc609a9f9ca50e2b9e8ed208d979ef41b177de2459fa23f07c2ca10bb930