[INFO] cloning repository https://github.com/adamgreig/iris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamgreig/iris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Firis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Firis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e768564c590d1e745d6f80a45ba951609f18de8c
[INFO] checking adamgreig/iris against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Firis" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamgreig/iris on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamgreig/iris
[INFO] finished tweaking git repo https://github.com/adamgreig/iris
[INFO] tweaked toml for git repo https://github.com/adamgreig/iris written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/adamgreig/iris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae8ffb41a3d449b8230ef71edd1890c2767decbf1d9a043f98d2b36985f41e3e
[INFO] running `Command { std: "docker" "start" "-a" "ae8ffb41a3d449b8230ef71edd1890c2767decbf1d9a043f98d2b36985f41e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8ffb41a3d449b8230ef71edd1890c2767decbf1d9a043f98d2b36985f41e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8ffb41a3d449b8230ef71edd1890c2767decbf1d9a043f98d2b36985f41e3e", kill_on_drop: false }`
[INFO] [stdout] ae8ffb41a3d449b8230ef71edd1890c2767decbf1d9a043f98d2b36985f41e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9419dc807f93ab1b58bcb7cb62d3df1385d6627ddaa8e75efb3e1a6984cd17ac
[INFO] running `Command { std: "docker" "start" "-a" "9419dc807f93ab1b58bcb7cb62d3df1385d6627ddaa8e75efb3e1a6984cd17ac", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking strsim v0.5.1
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking clap v2.18.0
[INFO] [stderr]     Checking iris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "9419dc807f93ab1b58bcb7cb62d3df1385d6627ddaa8e75efb3e1a6984cd17ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9419dc807f93ab1b58bcb7cb62d3df1385d6627ddaa8e75efb3e1a6984cd17ac", kill_on_drop: false }`
[INFO] [stdout] 9419dc807f93ab1b58bcb7cb62d3df1385d6627ddaa8e75efb3e1a6984cd17ac