[INFO] fetching crate duplex 0.3.1...
[INFO] checking duplex-0.3.1 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate duplex 0.3.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate duplex 0.3.1 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duplex 0.3.1
[INFO] finished tweaking crates.io crate duplex 0.3.1
[INFO] tweaked toml for crates.io crate duplex 0.3.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] [stderr]   Downloaded posish v0.6.1
[INFO] [stderr]   Downloaded unsafe-io v0.6.2
[INFO] [stderr]   Downloaded readwrite v0.1.2
[INFO] [stderr]   Downloaded ssh2 v0.9.1
[INFO] [stderr]   Downloaded io-close v0.3.7
[INFO] [stderr]   Downloaded socketpair v0.6.2
[INFO] [stderr]   Downloaded char-device v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1373f528d19d9ab05977ada78ac2d6c5d6109c19ea9b5e6f55678897039304d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e1373f528d19d9ab05977ada78ac2d6c5d6109c19ea9b5e6f55678897039304d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1373f528d19d9ab05977ada78ac2d6c5d6109c19ea9b5e6f55678897039304d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1373f528d19d9ab05977ada78ac2d6c5d6109c19ea9b5e6f55678897039304d", kill_on_drop: false }`
[INFO] [stdout] e1373f528d19d9ab05977ada78ac2d6c5d6109c19ea9b5e6f55678897039304d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 674cfe4793e4e457034933242f4cf402659b414cc05759e96bc6c183062b9335
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "674cfe4793e4e457034933242f4cf402659b414cc05759e96bc6c183062b9335", kill_on_drop: false }`
[INFO] [stderr]     Checking duplex v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "674cfe4793e4e457034933242f4cf402659b414cc05759e96bc6c183062b9335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "674cfe4793e4e457034933242f4cf402659b414cc05759e96bc6c183062b9335", kill_on_drop: false }`
[INFO] [stdout] 674cfe4793e4e457034933242f4cf402659b414cc05759e96bc6c183062b9335