[INFO] fetching crate ada 0.3.0...
[INFO] checking ada-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ada 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ada 0.3.0 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 ada 0.3.0
[INFO] finished tweaking crates.io crate ada 0.3.0
[INFO] tweaked toml for crates.io crate ada 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ada 0.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shlex v0.1.1
[INFO] [stderr]   Downloaded rustc-hash v1.1.0
[INFO] [stderr]   Downloaded pkg-config v0.3.19
[INFO] [stderr]   Downloaded xkbcommon-sys v0.7.5
[INFO] [stderr]   Downloaded which v3.1.1
[INFO] [stderr]   Downloaded minifb v0.19.2
[INFO] [stderr]   Downloaded version_check v0.9.2
[INFO] [stderr]   Downloaded cexpr v0.4.0
[INFO] [stderr]   Downloaded libloading v0.6.6
[INFO] [stderr]   Downloaded smallvec v1.6.1
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.4
[INFO] [stderr]   Downloaded sdl2 v0.34.3
[INFO] [stderr]   Downloaded sdl2-sys v0.34.3
[INFO] [stderr]   Downloaded flate2 v1.0.19
[INFO] [stderr]   Downloaded tempfile v3.1.0
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded xml-rs v0.8.3
[INFO] [stderr]   Downloaded encoding_rs v0.8.26
[INFO] [stderr]   Downloaded orbclient v0.3.30
[INFO] [stderr]   Downloaded wayland-protocols v0.27.0
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded crc32fast v1.2.1
[INFO] [stderr]   Downloaded adler v0.2.3
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded miniz_oxide v0.4.3
[INFO] [stderr]   Downloaded filetime v0.2.13
[INFO] [stderr]   Downloaded xattr v0.2.2
[INFO] [stderr]   Downloaded tar v0.4.30
[INFO] [stderr]   Downloaded unidiff v0.3.3
[INFO] [stderr]   Downloaded version-compare v0.0.10
[INFO] [stderr]   Downloaded raw-window-handle v0.3.3
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded nom v6.0.1
[INFO] [stderr]   Downloaded xcursor v0.3.3
[INFO] [stderr]   Downloaded wayland-cursor v0.27.0
[INFO] [stderr]   Downloaded wayland-client v0.27.0
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded wayland-sys v0.27.0
[INFO] [stderr]   Downloaded wayland-commons v0.27.0
[INFO] [stderr]   Downloaded wayland-scanner v0.27.0
[INFO] [stderr]   Downloaded x11-dl v2.18.5
[INFO] [stderr]   Downloaded xkb v0.2.1
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded clang-sys v1.0.3
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded hermit-abi v0.1.17
[INFO] [stderr]   Downloaded humantime v2.0.1
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded log v0.4.13
[INFO] [stderr]   Downloaded peeking_take_while v0.1.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded libc v0.2.82
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded bindgen v0.56.0
[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] 64f522565716873e718eba26bc861a4ec8eb40fb2e17fd185eea866d61b2bda0
[INFO] running `Command { std: "docker" "start" "-a" "64f522565716873e718eba26bc861a4ec8eb40fb2e17fd185eea866d61b2bda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f522565716873e718eba26bc861a4ec8eb40fb2e17fd185eea866d61b2bda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f522565716873e718eba26bc861a4ec8eb40fb2e17fd185eea866d61b2bda0", kill_on_drop: false }`
[INFO] [stdout] 64f522565716873e718eba26bc861a4ec8eb40fb2e17fd185eea866d61b2bda0
[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] 59e6342f1b959c11cf99b186499930dff24a2cede006ec01f957b1b04a6a25a2
[INFO] running `Command { std: "docker" "start" "-a" "59e6342f1b959c11cf99b186499930dff24a2cede006ec01f957b1b04a6a25a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling clang-sys v1.0.3
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling libloading v0.6.6
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking wayland-commons v0.27.0
[INFO] [stderr]    Compiling minifb v0.19.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking ada v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wayland-cursor v0.27.0
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.5
[INFO] [stderr]     Checking xkb v0.2.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, nom v6.0.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "59e6342f1b959c11cf99b186499930dff24a2cede006ec01f957b1b04a6a25a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59e6342f1b959c11cf99b186499930dff24a2cede006ec01f957b1b04a6a25a2", kill_on_drop: false }`
[INFO] [stdout] 59e6342f1b959c11cf99b186499930dff24a2cede006ec01f957b1b04a6a25a2