[INFO] fetching crate ief 0.0.2...
[INFO] checking ief-0.0.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ief 0.0.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ief 0.0.2 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 ief 0.0.2
[INFO] finished tweaking crates.io crate ief 0.0.2
[INFO] tweaked toml for crates.io crate ief 0.0.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ief 0.0.2 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 winapi-util v0.1.3
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded ignore v0.4.11
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded globset v0.4.4
[INFO] [stderr]   Downloaded cpp_demangle v0.2.14
[INFO] [stderr]   Downloaded goblin v0.2.0
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6aa7ccf84be5eccff797d5f23e585c3324b6b564ac00ccab6fe7ce280c2f109f
[INFO] running `Command { std: "docker" "start" "-a" "6aa7ccf84be5eccff797d5f23e585c3324b6b564ac00ccab6fe7ce280c2f109f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aa7ccf84be5eccff797d5f23e585c3324b6b564ac00ccab6fe7ce280c2f109f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa7ccf84be5eccff797d5f23e585c3324b6b564ac00ccab6fe7ce280c2f109f", kill_on_drop: false }`
[INFO] [stdout] 6aa7ccf84be5eccff797d5f23e585c3324b6b564ac00ccab6fe7ce280c2f109f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 346f7982c59547130937b78f016a4d94daefd6512eb8b2680aaf62c874d04b74
[INFO] running `Command { std: "docker" "start" "-a" "346f7982c59547130937b78f016a4d94daefd6512eb8b2680aaf62c874d04b74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling cpp_demangle v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking ignore v0.4.11
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.2.0
[INFO] [stderr]     Checking ief v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.69s
[INFO] running `Command { std: "docker" "inspect" "346f7982c59547130937b78f016a4d94daefd6512eb8b2680aaf62c874d04b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346f7982c59547130937b78f016a4d94daefd6512eb8b2680aaf62c874d04b74", kill_on_drop: false }`
[INFO] [stdout] 346f7982c59547130937b78f016a4d94daefd6512eb8b2680aaf62c874d04b74