[INFO] fetching crate rmw-utf8 0.0.6...
[INFO] checking rmw-utf8-0.0.6 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rmw-utf8 0.0.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rmw-utf8 0.0.6 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 rmw-utf8 0.0.6
[INFO] finished tweaking crates.io crate rmw-utf8 0.0.6
[INFO] tweaked toml for crates.io crate rmw-utf8 0.0.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages
[INFO] [stderr]       Adding aho-corasick v0.7.20 (latest: v1.1.3)
[INFO] [stderr]       Adding ruzstd v0.2.4 (latest: v0.6.0)
[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 huffman-compress v0.6.1
[INFO] [stderr]   Downloaded speedy v0.8.7
[INFO] [stderr]   Downloaded speedy-derive v0.8.7
[INFO] [stderr]   Downloaded ruzstd v0.2.4
[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] bbe29c36e5d6cb51f568f483ddd82e0b0b956cf36cc5d72d3f3db06789a9bd26
[INFO] running `Command { std: "docker" "start" "-a" "bbe29c36e5d6cb51f568f483ddd82e0b0b956cf36cc5d72d3f3db06789a9bd26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbe29c36e5d6cb51f568f483ddd82e0b0b956cf36cc5d72d3f3db06789a9bd26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe29c36e5d6cb51f568f483ddd82e0b0b956cf36cc5d72d3f3db06789a9bd26", kill_on_drop: false }`
[INFO] [stdout] bbe29c36e5d6cb51f568f483ddd82e0b0b956cf36cc5d72d3f3db06789a9bd26
[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] 0953c3b957eb696066bc06f17f07ad81dd5d480306ab7f7e89212ab5ea4845c4
[INFO] running `Command { std: "docker" "start" "-a" "0953c3b957eb696066bc06f17f07ad81dd5d480306ab7f7e89212ab5ea4845c4", kill_on_drop: false }`
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking huffman-compress v0.6.1
[INFO] [stderr]    Compiling speedy-derive v0.8.7
[INFO] [stderr]     Checking ruzstd v0.2.4
[INFO] [stderr]     Checking speedy v0.8.7
[INFO] [stderr]     Checking rmw-utf8 v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `Command { std: "docker" "inspect" "0953c3b957eb696066bc06f17f07ad81dd5d480306ab7f7e89212ab5ea4845c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0953c3b957eb696066bc06f17f07ad81dd5d480306ab7f7e89212ab5ea4845c4", kill_on_drop: false }`
[INFO] [stdout] 0953c3b957eb696066bc06f17f07ad81dd5d480306ab7f7e89212ab5ea4845c4
[INFO] checking rmw-utf8-0.0.6 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate rmw-utf8 0.0.6 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate rmw-utf8 0.0.6 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 rmw-utf8 0.0.6
[INFO] finished tweaking crates.io crate rmw-utf8 0.0.6
[INFO] tweaked toml for crates.io crate rmw-utf8 0.0.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 33936773e545580ae5d7a5db9a8aec790f7f9db2a4c2e0f990748f83ac01d95d
[INFO] running `Command { std: "docker" "start" "-a" "33936773e545580ae5d7a5db9a8aec790f7f9db2a4c2e0f990748f83ac01d95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33936773e545580ae5d7a5db9a8aec790f7f9db2a4c2e0f990748f83ac01d95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33936773e545580ae5d7a5db9a8aec790f7f9db2a4c2e0f990748f83ac01d95d", kill_on_drop: false }`
[INFO] [stdout] 33936773e545580ae5d7a5db9a8aec790f7f9db2a4c2e0f990748f83ac01d95d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 028df3793e54db544be57cb59b9462e482029355919a7ade58ddfbec7abd9d9e
[INFO] running `Command { std: "docker" "start" "-a" "028df3793e54db544be57cb59b9462e482029355919a7ade58ddfbec7abd9d9e", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking huffman-compress v0.6.1
[INFO] [stderr]    Compiling speedy-derive v0.8.7
[INFO] [stderr]     Checking ruzstd v0.2.4
[INFO] [stderr]     Checking speedy v0.8.7
[INFO] [stderr]     Checking rmw-utf8 v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "028df3793e54db544be57cb59b9462e482029355919a7ade58ddfbec7abd9d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "028df3793e54db544be57cb59b9462e482029355919a7ade58ddfbec7abd9d9e", kill_on_drop: false }`
[INFO] [stdout] 028df3793e54db544be57cb59b9462e482029355919a7ade58ddfbec7abd9d9e