[INFO] fetching crate codeviz 0.2.2...
[INFO] checking codeviz-0.2.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate codeviz 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate codeviz 0.2.2 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 codeviz 0.2.2
[INFO] finished tweaking crates.io crate codeviz 0.2.2
[INFO] tweaked toml for crates.io crate codeviz 0.2.2 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 19 packages
[INFO] [stderr]       Adding error-chain v0.11.0 (latest: v0.12.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded codeviz_macros v0.2.2
[INFO] [stderr]   Downloaded codeviz_rust v0.2.2
[INFO] [stderr]   Downloaded codeviz_js v0.2.2
[INFO] [stderr]   Downloaded codeviz_common v0.2.2
[INFO] [stderr]   Downloaded codeviz_python v0.2.2
[INFO] [stderr]   Downloaded codeviz_java v0.2.2
[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] cb7d74550f2473d5c12e90542af15091d1a579476082b8ba7c4a58c7c323b7d2
[INFO] running `Command { std: "docker" "start" "-a" "cb7d74550f2473d5c12e90542af15091d1a579476082b8ba7c4a58c7c323b7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7d74550f2473d5c12e90542af15091d1a579476082b8ba7c4a58c7c323b7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7d74550f2473d5c12e90542af15091d1a579476082b8ba7c4a58c7c323b7d2", kill_on_drop: false }`
[INFO] [stdout] cb7d74550f2473d5c12e90542af15091d1a579476082b8ba7c4a58c7c323b7d2
[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] a8f7118229e5c55ad021c28816cdb03cbce8cfa33b26fc9c876f9c9dbc4ee065
[INFO] running `Command { std: "docker" "start" "-a" "a8f7118229e5c55ad021c28816cdb03cbce8cfa33b26fc9c876f9c9dbc4ee065", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking codeviz_macros v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking codeviz_common v0.2.2
[INFO] [stderr]     Checking codeviz_java v0.2.2
[INFO] [stderr]     Checking codeviz_rust v0.2.2
[INFO] [stderr]     Checking codeviz_js v0.2.2
[INFO] [stderr]     Checking codeviz_python v0.2.2
[INFO] [stderr]     Checking codeviz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "a8f7118229e5c55ad021c28816cdb03cbce8cfa33b26fc9c876f9c9dbc4ee065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f7118229e5c55ad021c28816cdb03cbce8cfa33b26fc9c876f9c9dbc4ee065", kill_on_drop: false }`
[INFO] [stdout] a8f7118229e5c55ad021c28816cdb03cbce8cfa33b26fc9c876f9c9dbc4ee065
[INFO] checking codeviz-0.2.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate codeviz 0.2.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate codeviz 0.2.2 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 codeviz 0.2.2
[INFO] finished tweaking crates.io crate codeviz 0.2.2
[INFO] tweaked toml for crates.io crate codeviz 0.2.2 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] f158b2739b814eb55975e3d5d617dc8bd53b39a9165939660320c4f9953a1c80
[INFO] running `Command { std: "docker" "start" "-a" "f158b2739b814eb55975e3d5d617dc8bd53b39a9165939660320c4f9953a1c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f158b2739b814eb55975e3d5d617dc8bd53b39a9165939660320c4f9953a1c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f158b2739b814eb55975e3d5d617dc8bd53b39a9165939660320c4f9953a1c80", kill_on_drop: false }`
[INFO] [stdout] f158b2739b814eb55975e3d5d617dc8bd53b39a9165939660320c4f9953a1c80
[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] c57ee4d90c84013fccda68efb373e319939fa76248fd8f801da6ca33fda170b0
[INFO] running `Command { std: "docker" "start" "-a" "c57ee4d90c84013fccda68efb373e319939fa76248fd8f801da6ca33fda170b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking codeviz_macros v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking codeviz_common v0.2.2
[INFO] [stderr]     Checking codeviz_java v0.2.2
[INFO] [stderr]     Checking codeviz_js v0.2.2
[INFO] [stderr]     Checking codeviz_python v0.2.2
[INFO] [stderr]     Checking codeviz_rust v0.2.2
[INFO] [stderr]     Checking codeviz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "c57ee4d90c84013fccda68efb373e319939fa76248fd8f801da6ca33fda170b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c57ee4d90c84013fccda68efb373e319939fa76248fd8f801da6ca33fda170b0", kill_on_drop: false }`
[INFO] [stdout] c57ee4d90c84013fccda68efb373e319939fa76248fd8f801da6ca33fda170b0