[INFO] fetching crate caminos 0.6.3...
[INFO] checking caminos-0.6.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate caminos 0.6.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate caminos 0.6.3 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 caminos 0.6.3
[INFO] finished tweaking crates.io crate caminos 0.6.3
[INFO] tweaked toml for crates.io crate caminos 0.6.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate caminos 0.6.3 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 tikv-jemallocator v0.5.4
[INFO] [stderr]   Downloaded rprompt v1.0.5
[INFO] [stderr]   Downloaded backtrace-on-stack-overflow v0.1.1
[INFO] [stderr]   Downloaded synstructure v0.5.2
[INFO] [stderr]   Downloaded quantifiable-derive v0.1.0
[INFO] [stderr]   Downloaded rpassword v6.0.1
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded indicatif v0.16.2
[INFO] [stderr]   Downloaded ssh2 v0.9.4
[INFO] [stderr]   Downloaded nix v0.19.1
[INFO] [stderr]   Downloaded regex v1.10.0
[INFO] [stderr]   Downloaded regex-syntax v0.8.1
[INFO] [stderr]   Downloaded regex-automata v0.4.1
[INFO] [stderr]   Downloaded libssh2-sys v0.3.0
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]   Downloaded caminos-lib v0.6.3
[INFO] [stderr]   Downloaded procfs v0.12.0
[INFO] [stderr]   Downloaded gramatica v0.2.1
[INFO] [stderr]   Downloaded chrono v0.4.31
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded iana-time-zone v0.1.57
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b05cff047d69678b57274fadc7c43e0fd10ad4ab9f9ad3dcac7203860f956de7
[INFO] running `Command { std: "docker" "start" "-a" "b05cff047d69678b57274fadc7c43e0fd10ad4ab9f9ad3dcac7203860f956de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b05cff047d69678b57274fadc7c43e0fd10ad4ab9f9ad3dcac7203860f956de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05cff047d69678b57274fadc7c43e0fd10ad4ab9f9ad3dcac7203860f956de7", kill_on_drop: false }`
[INFO] [stdout] b05cff047d69678b57274fadc7c43e0fd10ad4ab9f9ad3dcac7203860f956de7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1bfb76331d6a70532de770de87d1f34c72c19e7c6b17c736aee9e10d9c669f6d
[INFO] running `Command { std: "docker" "start" "-a" "1bfb76331d6a70532de770de87d1f34c72c19e7c6b17c736aee9e10d9c669f6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling caminos-lib v0.6.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.1
[INFO] [stderr]     Checking procfs v0.12.0
[INFO] [stderr]    Compiling openssl-sys v0.9.93
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling libssh2-sys v0.3.0
[INFO] [stderr]    Compiling tikv-jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling quantifiable-derive v0.1.0
[INFO] [stderr]     Checking regex v1.10.0
[INFO] [stderr]     Checking backtrace-on-stack-overflow v0.1.1
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking gramatica v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]     Checking ssh2 v0.9.4
[INFO] [stderr]     Checking rpassword v6.0.1
[INFO] [stderr]     Checking tikv-jemallocator v0.5.4
[INFO] [stderr]     Checking caminos v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.22s
[INFO] running `Command { std: "docker" "inspect" "1bfb76331d6a70532de770de87d1f34c72c19e7c6b17c736aee9e10d9c669f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bfb76331d6a70532de770de87d1f34c72c19e7c6b17c736aee9e10d9c669f6d", kill_on_drop: false }`
[INFO] [stdout] 1bfb76331d6a70532de770de87d1f34c72c19e7c6b17c736aee9e10d9c669f6d