[INFO] fetching crate scanner-rust 2.0.17...
[INFO] checking scanner-rust-2.0.17 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate scanner-rust 2.0.17 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate scanner-rust 2.0.17 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 scanner-rust 2.0.17
[INFO] finished tweaking crates.io crate scanner-rust 2.0.17
[INFO] tweaked toml for crates.io crate scanner-rust 2.0.17 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate scanner-rust 2.0.17 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 utf8-width v0.1.6
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.13
[INFO] [stderr]   Downloaded educe v0.4.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3a1d202153f09ca5d65dece7b5574a97b0c25ff9a74a781289c6ab6ce88e7225
[INFO] running `Command { std: "docker" "start" "-a" "3a1d202153f09ca5d65dece7b5574a97b0c25ff9a74a781289c6ab6ce88e7225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a1d202153f09ca5d65dece7b5574a97b0c25ff9a74a781289c6ab6ce88e7225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1d202153f09ca5d65dece7b5574a97b0c25ff9a74a781289c6ab6ce88e7225", kill_on_drop: false }`
[INFO] [stdout] 3a1d202153f09ca5d65dece7b5574a97b0c25ff9a74a781289c6ab6ce88e7225
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0fcdb5675eb13599991c83d177bf156ee6c7e02ec34bac652eeecb92e70bba23
[INFO] running `Command { std: "docker" "start" "-a" "0fcdb5675eb13599991c83d177bf156ee6c7e02ec34bac652eeecb92e70bba23", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking generic-array v1.0.0
[INFO] [stderr]    Compiling enum-ordinalize v3.1.13
[INFO] [stderr]    Compiling educe v0.4.22
[INFO] [stderr]     Checking scanner-rust v2.0.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] running `Command { std: "docker" "inspect" "0fcdb5675eb13599991c83d177bf156ee6c7e02ec34bac652eeecb92e70bba23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fcdb5675eb13599991c83d177bf156ee6c7e02ec34bac652eeecb92e70bba23", kill_on_drop: false }`
[INFO] [stdout] 0fcdb5675eb13599991c83d177bf156ee6c7e02ec34bac652eeecb92e70bba23