[INFO] cloning repository https://github.com/huangjj27/guess_wasi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huangjj27/guess_wasi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangjj27%2Fguess_wasi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangjj27%2Fguess_wasi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaa161173d7d3180e664a02c2a87ddd93abce037
[INFO] checking huangjj27/guess_wasi against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangjj27%2Fguess_wasi" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huangjj27/guess_wasi on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/huangjj27/guess_wasi
[INFO] finished tweaking git repo https://github.com/huangjj27/guess_wasi
[INFO] tweaked toml for git repo https://github.com/huangjj27/guess_wasi written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/huangjj27/guess_wasi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.3
[INFO] [stderr]   Downloaded rand v0.7.0-pre.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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8b6febeb138a72a128d88e827df2c3d570c9219c4bbf143f141d56367741ce2
[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" "e8b6febeb138a72a128d88e827df2c3d570c9219c4bbf143f141d56367741ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8b6febeb138a72a128d88e827df2c3d570c9219c4bbf143f141d56367741ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b6febeb138a72a128d88e827df2c3d570c9219c4bbf143f141d56367741ce2", kill_on_drop: false }`
[INFO] [stdout] e8b6febeb138a72a128d88e827df2c3d570c9219c4bbf143f141d56367741ce2
[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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 359e87cb5e9fe3baeef439d84e5b7f61e849d903c6aa10a7df3980b03fc8dbc8
[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" "359e87cb5e9fe3baeef439d84e5b7f61e849d903c6aa10a7df3980b03fc8dbc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling rand v0.7.0-pre.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.0
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling structopt-derive v0.2.16
[INFO] [stderr]     Checking structopt v0.2.16
[INFO] [stderr]     Checking guess_wasi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.54s
[INFO] running `Command { std: "docker" "inspect" "359e87cb5e9fe3baeef439d84e5b7f61e849d903c6aa10a7df3980b03fc8dbc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359e87cb5e9fe3baeef439d84e5b7f61e849d903c6aa10a7df3980b03fc8dbc8", kill_on_drop: false }`
[INFO] [stdout] 359e87cb5e9fe3baeef439d84e5b7f61e849d903c6aa10a7df3980b03fc8dbc8