[INFO] fetching crate rtools 0.5.3...
[INFO] checking rtools-0.5.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rtools 0.5.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rtools 0.5.3 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 crates.io crate rtools 0.5.3
[INFO] finished tweaking crates.io crate rtools 0.5.3
[INFO] tweaked toml for crates.io crate rtools 0.5.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rtools 0.5.3 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paris v1.5.15
[INFO] [stderr]   Downloaded android_logger v0.13.3
[INFO] [stderr]   Downloaded typed-builder-macro v0.18.0
[INFO] [stderr]   Downloaded typed-builder v0.18.0
[INFO] [stderr]   Downloaded refs v0.6.8
[INFO] [stderr]   Downloaded mutants v0.0.3
[INFO] [stderr]   Downloaded simplelog v0.12.1
[INFO] [stderr]   Downloaded android-ndk-sys v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1fd2ff4ff9c326333e51fb5055aed6eaa1e6e1a1b5c65503455804c68e1d5ecb
[INFO] running `Command { std: "docker" "start" "-a" "1fd2ff4ff9c326333e51fb5055aed6eaa1e6e1a1b5c65503455804c68e1d5ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fd2ff4ff9c326333e51fb5055aed6eaa1e6e1a1b5c65503455804c68e1d5ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd2ff4ff9c326333e51fb5055aed6eaa1e6e1a1b5c65503455804c68e1d5ecb", kill_on_drop: false }`
[INFO] [stdout] 1fd2ff4ff9c326333e51fb5055aed6eaa1e6e1a1b5c65503455804c68e1d5ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4c77ae2d0a1b09b36240ff69018027a2fb9b05b5f5c2df42eecdc48f53dd75eb
[INFO] running `Command { std: "docker" "start" "-a" "4c77ae2d0a1b09b36240ff69018027a2fb9b05b5f5c2df42eecdc48f53dd75eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking deranged v0.3.9
[INFO] [stderr]    Compiling time-macros v0.2.15
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]    Compiling rtools v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking time v0.3.30
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking paris v1.5.15
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking simplelog v0.12.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking refs v0.6.8
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling typed-builder-macro v0.18.0
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking typed-builder v0.18.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.17s
[INFO] running `Command { std: "docker" "inspect" "4c77ae2d0a1b09b36240ff69018027a2fb9b05b5f5c2df42eecdc48f53dd75eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c77ae2d0a1b09b36240ff69018027a2fb9b05b5f5c2df42eecdc48f53dd75eb", kill_on_drop: false }`
[INFO] [stdout] 4c77ae2d0a1b09b36240ff69018027a2fb9b05b5f5c2df42eecdc48f53dd75eb