[INFO] fetching crate rot8 0.1.3...
[INFO] checking rot8-0.1.3 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate rot8 0.1.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rot8 0.1.3 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rot8 0.1.3
[INFO] finished tweaking crates.io crate rot8 0.1.3
[INFO] tweaked toml for crates.io crate rot8 0.1.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate rot8 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bffd34c2fca4d5affc8f2919be24f8dd88fca1bc3ccdac683833368cb0f18460
[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" "bffd34c2fca4d5affc8f2919be24f8dd88fca1bc3ccdac683833368cb0f18460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bffd34c2fca4d5affc8f2919be24f8dd88fca1bc3ccdac683833368cb0f18460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bffd34c2fca4d5affc8f2919be24f8dd88fca1bc3ccdac683833368cb0f18460", kill_on_drop: false }`
[INFO] [stdout] bffd34c2fca4d5affc8f2919be24f8dd88fca1bc3ccdac683833368cb0f18460
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f6b3fb6b9d048063a53514d6753764497cab6fe1fca7176310594b3cb87acfc
[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" "7f6b3fb6b9d048063a53514d6753764497cab6fe1fca7176310594b3cb87acfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.100
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking rot8 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.84s
[INFO] running `Command { std: "docker" "inspect" "7f6b3fb6b9d048063a53514d6753764497cab6fe1fca7176310594b3cb87acfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6b3fb6b9d048063a53514d6753764497cab6fe1fca7176310594b3cb87acfc", kill_on_drop: false }`
[INFO] [stdout] 7f6b3fb6b9d048063a53514d6753764497cab6fe1fca7176310594b3cb87acfc