[INFO] fetching crate arion 0.4.0...
[INFO] checking arion-0.4.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate arion 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate arion 0.4.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arion 0.4.0
[INFO] finished tweaking crates.io crate arion 0.4.0
[INFO] tweaked toml for crates.io crate arion 0.4.0 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3741fde224755c1ee8dbda528dee595db6b9d118b5b8bce0fee4256794b30d2c
[INFO] running `Command { std: "docker" "start" "-a" "3741fde224755c1ee8dbda528dee595db6b9d118b5b8bce0fee4256794b30d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3741fde224755c1ee8dbda528dee595db6b9d118b5b8bce0fee4256794b30d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3741fde224755c1ee8dbda528dee595db6b9d118b5b8bce0fee4256794b30d2c", kill_on_drop: false }`
[INFO] [stdout] 3741fde224755c1ee8dbda528dee595db6b9d118b5b8bce0fee4256794b30d2c
[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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84036056f020a1640af1fc35f387c59d35d6b91e07540f55e097341788ba7d44
[INFO] running `Command { std: "docker" "start" "-a" "84036056f020a1640af1fc35f387c59d35d6b91e07540f55e097341788ba7d44", kill_on_drop: false }`
[INFO] [stderr]     Checking arion v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `arion` is imported redundantly
[INFO] [stdout]  --> tests/integration_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arion;
[INFO] [stdout]   |     ^^^^^ the item `arion` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "84036056f020a1640af1fc35f387c59d35d6b91e07540f55e097341788ba7d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84036056f020a1640af1fc35f387c59d35d6b91e07540f55e097341788ba7d44", kill_on_drop: false }`
[INFO] [stdout] 84036056f020a1640af1fc35f387c59d35d6b91e07540f55e097341788ba7d44
[INFO] checking arion-0.4.0 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate arion 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate arion 0.4.0 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arion 0.4.0
[INFO] finished tweaking crates.io crate arion 0.4.0
[INFO] tweaked toml for crates.io crate arion 0.4.0 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" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d64cb2ce37974218f411ea89536e0f7398d26464f840e2a542245d49017a670
[INFO] running `Command { std: "docker" "start" "-a" "5d64cb2ce37974218f411ea89536e0f7398d26464f840e2a542245d49017a670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d64cb2ce37974218f411ea89536e0f7398d26464f840e2a542245d49017a670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d64cb2ce37974218f411ea89536e0f7398d26464f840e2a542245d49017a670", kill_on_drop: false }`
[INFO] [stdout] 5d64cb2ce37974218f411ea89536e0f7398d26464f840e2a542245d49017a670
[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" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c0fa52da542ed1917554d372fc638e961a00538d47b9e8c3dea2d68d459f9ff
[INFO] running `Command { std: "docker" "start" "-a" "9c0fa52da542ed1917554d372fc638e961a00538d47b9e8c3dea2d68d459f9ff", kill_on_drop: false }`
[INFO] [stderr]     Checking arion v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `arion` is imported redundantly
[INFO] [stdout]  --> tests/integration_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arion;
[INFO] [stdout]   |     ^^^^^ the item `arion` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "9c0fa52da542ed1917554d372fc638e961a00538d47b9e8c3dea2d68d459f9ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c0fa52da542ed1917554d372fc638e961a00538d47b9e8c3dea2d68d459f9ff", kill_on_drop: false }`
[INFO] [stdout] 9c0fa52da542ed1917554d372fc638e961a00538d47b9e8c3dea2d68d459f9ff
