[INFO] fetching crate helion 0.5.0...
[INFO] checking helion-0.5.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate helion 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate helion 0.5.0 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 crates.io crate helion 0.5.0
[INFO] finished tweaking crates.io crate helion 0.5.0
[INFO] tweaked toml for crates.io crate helion 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate helion 0.5.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded serde_derive_internals v0.15.1
[INFO] [stderr]   Downloaded serial v0.3.4
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded x11cap v0.4.1
[INFO] [stderr]   Downloaded cpuprofiler v0.0.3
[INFO] [stderr]   Downloaded ioctl-rs v0.1.5
[INFO] [stderr]   Downloaded metadeps v1.1.2
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded pkg-config v0.3.9
[INFO] [stderr]   Downloaded serde_json v1.0.2
[INFO] [stderr]   Downloaded dtoa v0.4.1
[INFO] [stderr]   Downloaded gcc v0.3.50
[INFO] [stderr]   Downloaded num-traits v0.1.39
[INFO] [stderr]   Downloaded backtrace-sys v0.1.11
[INFO] [stderr]   Downloaded lazy_static v0.2.8
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded itoa v0.3.1
[INFO] [stderr]   Downloaded serde_derive v1.0.8
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded rustc-demangle v0.1.4
[INFO] [stderr]   Downloaded cfg-if v0.1.1
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded x11 v2.14.0
[INFO] [stderr]   Downloaded captrs v0.3.0
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded clock_ticks v0.1.0
[INFO] [stderr]   Downloaded dxgcap v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1401ede639f13667b7ca823f2f6233d624d5d99ed404548cdc987dab4eb242e9
[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" "1401ede639f13667b7ca823f2f6233d624d5d99ed404548cdc987dab4eb242e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1401ede639f13667b7ca823f2f6233d624d5d99ed404548cdc987dab4eb242e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1401ede639f13667b7ca823f2f6233d624d5d99ed404548cdc987dab4eb242e9", kill_on_drop: false }`
[INFO] [stdout] 1401ede639f13667b7ca823f2f6233d624d5d99ed404548cdc987dab4eb242e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e79a42577dff8a2a2a996237a6f41603da357c3d93f2fee7f5aa5c9e6cd7b667
[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" "e79a42577dff8a2a2a996237a6f41603da357c3d93f2fee7f5aa5c9e6cd7b667", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling x11cap v0.4.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]    Compiling helion v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking clock_ticks v0.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.5
[INFO] [stderr]     Checking serial v0.3.4
[INFO] [stderr]    Compiling x11 v2.14.0
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking captrs v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.49s
[INFO] running `Command { std: "docker" "inspect" "e79a42577dff8a2a2a996237a6f41603da357c3d93f2fee7f5aa5c9e6cd7b667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79a42577dff8a2a2a996237a6f41603da357c3d93f2fee7f5aa5c9e6cd7b667", kill_on_drop: false }`
[INFO] [stdout] e79a42577dff8a2a2a996237a6f41603da357c3d93f2fee7f5aa5c9e6cd7b667