[INFO] cloning repository https://github.com/hails/zipper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hails/zipper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhails%2Fzipper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhails%2Fzipper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e42f8d2e84af349ce822bc1c10b903a9425980fd
[INFO] checking hails/zipper against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhails%2Fzipper" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hails/zipper on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hails/zipper
[INFO] finished tweaking git repo https://github.com/hails/zipper
[INFO] tweaked toml for git repo https://github.com/hails/zipper written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hails/zipper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b002f6f8a77605f9a20b3506a9f4f0372c1ca2b65a6eda32e50968862380455
[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" "9b002f6f8a77605f9a20b3506a9f4f0372c1ca2b65a6eda32e50968862380455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b002f6f8a77605f9a20b3506a9f4f0372c1ca2b65a6eda32e50968862380455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b002f6f8a77605f9a20b3506a9f4f0372c1ca2b65a6eda32e50968862380455", kill_on_drop: false }`
[INFO] [stdout] 9b002f6f8a77605f9a20b3506a9f4f0372c1ca2b65a6eda32e50968862380455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7476d6be3b6acf1764c92cfc8e7fc99101f944b9fb1f0092c09ce10bd951fa19
[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" "7476d6be3b6acf1764c92cfc8e7fc99101f944b9fb1f0092c09ce10bd951fa19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.62
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling wasm-bindgen v0.2.62
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.62
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.62
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.62
[INFO] [stderr]     Checking js-sys v0.3.39
[INFO] [stderr]     Checking zipper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.03s
[INFO] running `Command { std: "docker" "inspect" "7476d6be3b6acf1764c92cfc8e7fc99101f944b9fb1f0092c09ce10bd951fa19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7476d6be3b6acf1764c92cfc8e7fc99101f944b9fb1f0092c09ce10bd951fa19", kill_on_drop: false }`
[INFO] [stdout] 7476d6be3b6acf1764c92cfc8e7fc99101f944b9fb1f0092c09ce10bd951fa19