[INFO] fetching crate cancellable-io 0.1.1...
[INFO] checking cancellable-io-0.1.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cancellable-io 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cancellable-io 0.1.1 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 cancellable-io 0.1.1
[INFO] finished tweaking crates.io crate cancellable-io 0.1.1
[INFO] tweaked toml for crates.io crate cancellable-io 0.1.1 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] [stderr]     Updating crates.io index
[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] 528a59ca0bcb1dec918482b901e4596596ac8fa083c7e40dd12091fda4634fda
[INFO] running `Command { std: "docker" "start" "-a" "528a59ca0bcb1dec918482b901e4596596ac8fa083c7e40dd12091fda4634fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528a59ca0bcb1dec918482b901e4596596ac8fa083c7e40dd12091fda4634fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528a59ca0bcb1dec918482b901e4596596ac8fa083c7e40dd12091fda4634fda", kill_on_drop: false }`
[INFO] [stdout] 528a59ca0bcb1dec918482b901e4596596ac8fa083c7e40dd12091fda4634fda
[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] 37f54d43b10e57e12c997892fc90296d6640d455e9f07552caaa5bf849e740ae
[INFO] running `Command { std: "docker" "start" "-a" "37f54d43b10e57e12c997892fc90296d6640d455e9f07552caaa5bf849e740ae", kill_on_drop: false }`
[INFO] [stderr]     Checking cancellable-io v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1124:21
[INFO] [stdout]      |
[INFO] [stdout] 1123 |     use super::*;
[INFO] [stdout]      |         -------- the item `Arc` is already imported here
[INFO] [stdout] 1124 |     use std::sync::{Arc, Barrier};
[INFO] [stdout]      |                     ^^^
[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 0.16s
[INFO] running `Command { std: "docker" "inspect" "37f54d43b10e57e12c997892fc90296d6640d455e9f07552caaa5bf849e740ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f54d43b10e57e12c997892fc90296d6640d455e9f07552caaa5bf849e740ae", kill_on_drop: false }`
[INFO] [stdout] 37f54d43b10e57e12c997892fc90296d6640d455e9f07552caaa5bf849e740ae
[INFO] checking cancellable-io-0.1.1 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate cancellable-io 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate cancellable-io 0.1.1 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 cancellable-io 0.1.1
[INFO] finished tweaking crates.io crate cancellable-io 0.1.1
[INFO] tweaked toml for crates.io crate cancellable-io 0.1.1 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] [stderr]     Updating crates.io index
[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] e561ae65a6b76df2184da1c9d6f348aca38e121b013962ba646cf051c01f54ec
[INFO] running `Command { std: "docker" "start" "-a" "e561ae65a6b76df2184da1c9d6f348aca38e121b013962ba646cf051c01f54ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e561ae65a6b76df2184da1c9d6f348aca38e121b013962ba646cf051c01f54ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e561ae65a6b76df2184da1c9d6f348aca38e121b013962ba646cf051c01f54ec", kill_on_drop: false }`
[INFO] [stdout] e561ae65a6b76df2184da1c9d6f348aca38e121b013962ba646cf051c01f54ec
[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] 0e1e02c9264c4f9205cfbb9d3df21a3324e4f522649536d5dda781ae8316c6ba
[INFO] running `Command { std: "docker" "start" "-a" "0e1e02c9264c4f9205cfbb9d3df21a3324e4f522649536d5dda781ae8316c6ba", kill_on_drop: false }`
[INFO] [stderr]     Checking cancellable-io v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1124:21
[INFO] [stdout]      |
[INFO] [stdout] 1123 |     use super::*;
[INFO] [stdout]      |         -------- the item `Arc` is already imported here
[INFO] [stdout] 1124 |     use std::sync::{Arc, Barrier};
[INFO] [stdout]      |                     ^^^
[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 0.15s
[INFO] running `Command { std: "docker" "inspect" "0e1e02c9264c4f9205cfbb9d3df21a3324e4f522649536d5dda781ae8316c6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e1e02c9264c4f9205cfbb9d3df21a3324e4f522649536d5dda781ae8316c6ba", kill_on_drop: false }`
[INFO] [stdout] 0e1e02c9264c4f9205cfbb9d3df21a3324e4f522649536d5dda781ae8316c6ba
