[INFO] fetching crate unshield 0.2.0...
[INFO] checking unshield-0.2.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate unshield 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate unshield 0.2.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unshield 0.2.0
[INFO] finished tweaking crates.io crate unshield 0.2.0
[INFO] tweaked toml for crates.io crate unshield 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate unshield 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scoped-tls v1.0.0
[INFO] [stderr]   Downloaded futures-lite v0.1.11
[INFO] [stderr]   Downloaded concurrent-queue v1.2.2
[INFO] [stderr]   Downloaded multitask v0.2.0
[INFO] [stderr]   Downloaded arraydeque v0.4.5
[INFO] [stderr]   Downloaded explode v0.1.2
[INFO] [stderr]   Downloaded cache-padded v1.1.1
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded parking v1.0.6
[INFO] [stderr]   Downloaded waker-fn v1.0.0
[INFO] [stderr]   Downloaded fastrand v1.3.4
[INFO] [stderr]   Downloaded async-executor v0.1.2
[INFO] [stderr]   Downloaded async-task v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3bd0e8fb965297bfe552dac683b90da18ab9592c2c44401fc892274e43b44f0
[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" "b3bd0e8fb965297bfe552dac683b90da18ab9592c2c44401fc892274e43b44f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3bd0e8fb965297bfe552dac683b90da18ab9592c2c44401fc892274e43b44f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bd0e8fb965297bfe552dac683b90da18ab9592c2c44401fc892274e43b44f0", kill_on_drop: false }`
[INFO] [stdout] b3bd0e8fb965297bfe552dac683b90da18ab9592c2c44401fc892274e43b44f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d807f63657d751535e3121a00e011ba95bbb304b0ab1440e87e30ed367665aec
[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" "d807f63657d751535e3121a00e011ba95bbb304b0ab1440e87e30ed367665aec", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking fastrand v1.3.4
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking explode v0.1.2
[INFO] [stderr]     Checking unshield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `Command { std: "docker" "inspect" "d807f63657d751535e3121a00e011ba95bbb304b0ab1440e87e30ed367665aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d807f63657d751535e3121a00e011ba95bbb304b0ab1440e87e30ed367665aec", kill_on_drop: false }`
[INFO] [stdout] d807f63657d751535e3121a00e011ba95bbb304b0ab1440e87e30ed367665aec