[INFO] fetching crate libsieve 0.1.2...
[INFO] checking libsieve-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate libsieve 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate libsieve 0.1.2 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 libsieve 0.1.2
[INFO] finished tweaking crates.io crate libsieve 0.1.2
[INFO] tweaked toml for crates.io crate libsieve 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate libsieve 0.1.2 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmem v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ebbecfb3061b5b550f68701971558e41e5cdeb8c1e3ef1ed19c914b19b374dd5
[INFO] running `Command { std: "docker" "start" "-a" "ebbecfb3061b5b550f68701971558e41e5cdeb8c1e3ef1ed19c914b19b374dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebbecfb3061b5b550f68701971558e41e5cdeb8c1e3ef1ed19c914b19b374dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebbecfb3061b5b550f68701971558e41e5cdeb8c1e3ef1ed19c914b19b374dd5", kill_on_drop: false }`
[INFO] [stdout] ebbecfb3061b5b550f68701971558e41e5cdeb8c1e3ef1ed19c914b19b374dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9f946a5665a7a8e4f5d7d16fd1b7c9f754a6629f52d9295df18bc2779e43eed8
[INFO] running `Command { std: "docker" "start" "-a" "9f946a5665a7a8e4f5d7d16fd1b7c9f754a6629f52d9295df18bc2779e43eed8", kill_on_drop: false }`
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking memmem v0.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking libsieve v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "9f946a5665a7a8e4f5d7d16fd1b7c9f754a6629f52d9295df18bc2779e43eed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f946a5665a7a8e4f5d7d16fd1b7c9f754a6629f52d9295df18bc2779e43eed8", kill_on_drop: false }`
[INFO] [stdout] 9f946a5665a7a8e4f5d7d16fd1b7c9f754a6629f52d9295df18bc2779e43eed8
[INFO] checking libsieve-0.1.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate libsieve 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate libsieve 0.1.2 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libsieve 0.1.2
[INFO] finished tweaking crates.io crate libsieve 0.1.2
[INFO] tweaked toml for crates.io crate libsieve 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate libsieve 0.1.2 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 398d2dbe372fba0e46fba80d910eb7ee4321f298aedd269040949c719d23d88c
[INFO] running `Command { std: "docker" "start" "-a" "398d2dbe372fba0e46fba80d910eb7ee4321f298aedd269040949c719d23d88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "398d2dbe372fba0e46fba80d910eb7ee4321f298aedd269040949c719d23d88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398d2dbe372fba0e46fba80d910eb7ee4321f298aedd269040949c719d23d88c", kill_on_drop: false }`
[INFO] [stdout] 398d2dbe372fba0e46fba80d910eb7ee4321f298aedd269040949c719d23d88c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbb90c81745646c8ca9d431c210d95ef2b6243964a51acf88430f69acbb7dc5f
[INFO] running `Command { std: "docker" "start" "-a" "cbb90c81745646c8ca9d431c210d95ef2b6243964a51acf88430f69acbb7dc5f", kill_on_drop: false }`
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking memmem v0.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking libsieve v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.93s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "cbb90c81745646c8ca9d431c210d95ef2b6243964a51acf88430f69acbb7dc5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb90c81745646c8ca9d431c210d95ef2b6243964a51acf88430f69acbb7dc5f", kill_on_drop: false }`
[INFO] [stdout] cbb90c81745646c8ca9d431c210d95ef2b6243964a51acf88430f69acbb7dc5f