[INFO] fetching crate rio_turtle 0.8.4...
[INFO] checking rio_turtle-0.8.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rio_turtle 0.8.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rio_turtle 0.8.4 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 rio_turtle 0.8.4
[INFO] finished tweaking crates.io crate rio_turtle 0.8.4
[INFO] tweaked toml for crates.io crate rio_turtle 0.8.4 written to /workspace/builds/worker-6-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 10 packages
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7fe70458a6838f567403f7bee141db851602028942081d592060ceef615ddae6
[INFO] running `Command { std: "docker" "start" "-a" "7fe70458a6838f567403f7bee141db851602028942081d592060ceef615ddae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fe70458a6838f567403f7bee141db851602028942081d592060ceef615ddae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe70458a6838f567403f7bee141db851602028942081d592060ceef615ddae6", kill_on_drop: false }`
[INFO] [stdout] 7fe70458a6838f567403f7bee141db851602028942081d592060ceef615ddae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 864636b5682bd30395af6a64d3158b703fe96dbea65d480bd7d0693f9432f40c
[INFO] running `Command { std: "docker" "start" "-a" "864636b5682bd30395af6a64d3158b703fe96dbea65d480bd7d0693f9432f40c", kill_on_drop: false }`
[INFO] [stderr]     Checking oxilangtag v0.1.5
[INFO] [stderr]     Checking rio_api v0.8.4
[INFO] [stderr]     Checking oxiri v0.2.3
[INFO] [stderr]     Checking rio_turtle v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "864636b5682bd30395af6a64d3158b703fe96dbea65d480bd7d0693f9432f40c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864636b5682bd30395af6a64d3158b703fe96dbea65d480bd7d0693f9432f40c", kill_on_drop: false }`
[INFO] [stdout] 864636b5682bd30395af6a64d3158b703fe96dbea65d480bd7d0693f9432f40c
[INFO] checking rio_turtle-0.8.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rio_turtle 0.8.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rio_turtle 0.8.4 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rio_turtle 0.8.4
[INFO] finished tweaking crates.io crate rio_turtle 0.8.4
[INFO] tweaked toml for crates.io crate rio_turtle 0.8.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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 10 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01bf8222228c2b7cbcaed011dccbbd407f0573dff35c12f6efbf6c0d5b55eb01
[INFO] running `Command { std: "docker" "start" "-a" "01bf8222228c2b7cbcaed011dccbbd407f0573dff35c12f6efbf6c0d5b55eb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01bf8222228c2b7cbcaed011dccbbd407f0573dff35c12f6efbf6c0d5b55eb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01bf8222228c2b7cbcaed011dccbbd407f0573dff35c12f6efbf6c0d5b55eb01", kill_on_drop: false }`
[INFO] [stdout] 01bf8222228c2b7cbcaed011dccbbd407f0573dff35c12f6efbf6c0d5b55eb01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 463ff8a2343bd99855b5f925b4d9bf02c90fe3ec01b1f47a2a6ec5b677eb82da
[INFO] running `Command { std: "docker" "start" "-a" "463ff8a2343bd99855b5f925b4d9bf02c90fe3ec01b1f47a2a6ec5b677eb82da", kill_on_drop: false }`
[INFO] [stderr]     Checking oxilangtag v0.1.5
[INFO] [stderr]     Checking oxiri v0.2.3
[INFO] [stderr]     Checking rio_api v0.8.4
[INFO] [stderr]     Checking rio_turtle v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "463ff8a2343bd99855b5f925b4d9bf02c90fe3ec01b1f47a2a6ec5b677eb82da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463ff8a2343bd99855b5f925b4d9bf02c90fe3ec01b1f47a2a6ec5b677eb82da", kill_on_drop: false }`
[INFO] [stdout] 463ff8a2343bd99855b5f925b4d9bf02c90fe3ec01b1f47a2a6ec5b677eb82da