[INFO] fetching crate duplex 0.7.0...
[INFO] checking duplex-0.7.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate duplex 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate duplex 0.7.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duplex 0.7.0
[INFO] finished tweaking crates.io crate duplex 0.7.0
[INFO] tweaked toml for crates.io crate duplex 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-lock v2.4.0
[INFO] [stderr]   Downloaded async-mutex v1.4.0
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded event-listener v2.5.1
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded duplexify v1.2.2
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded char-device v0.7.0
[INFO] [stderr]   Downloaded readwrite v0.2.0
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded rsix v0.23.3
[INFO] [stderr]   Downloaded libudev-sys v0.1.4
[INFO] [stderr]   Downloaded io-lifetimes v0.3.1
[INFO] [stderr]   Downloaded async-process v1.2.0
[INFO] [stderr]   Downloaded async-global-executor v2.0.2
[INFO] [stderr]   Downloaded polling v2.1.0
[INFO] [stderr]   Downloaded async-task v4.0.3
[INFO] [stderr]   Downloaded fastrand v1.5.0
[INFO] [stderr]   Downloaded async-io v1.6.0
[INFO] [stderr]   Downloaded blocking v1.0.2
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.7
[INFO] [stderr]   Downloaded socketpair v0.10.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.0.24
[INFO] [stderr]   Downloaded unsafe-io v0.9.1
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded ssh2 v0.9.1
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded async-executor v1.4.1
[INFO] [stderr]   Downloaded async-std v1.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7b974f587401a9b80f0c1b89ab38742a9c13f8bafffd0fa024e0f9d616bfba7
[INFO] running `Command { std: "docker" "start" "-a" "f7b974f587401a9b80f0c1b89ab38742a9c13f8bafffd0fa024e0f9d616bfba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7b974f587401a9b80f0c1b89ab38742a9c13f8bafffd0fa024e0f9d616bfba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b974f587401a9b80f0c1b89ab38742a9c13f8bafffd0fa024e0f9d616bfba7", kill_on_drop: false }`
[INFO] [stdout] f7b974f587401a9b80f0c1b89ab38742a9c13f8bafffd0fa024e0f9d616bfba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 845dc65c451b83c1507714583df1769732073c9b86645d2a91d3ac297f959fb9
[INFO] running `Command { std: "docker" "start" "-a" "845dc65c451b83c1507714583df1769732073c9b86645d2a91d3ac297f959fb9", kill_on_drop: false }`
[INFO] [stderr]     Checking duplex v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "845dc65c451b83c1507714583df1769732073c9b86645d2a91d3ac297f959fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "845dc65c451b83c1507714583df1769732073c9b86645d2a91d3ac297f959fb9", kill_on_drop: false }`
[INFO] [stdout] 845dc65c451b83c1507714583df1769732073c9b86645d2a91d3ac297f959fb9