[INFO] cloning repository https://github.com/ricemiller/conway_searcher_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ricemiller/conway_searcher_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricemiller%2Fconway_searcher_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricemiller%2Fconway_searcher_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d5602f08e741b95bbd1ad310d25f4a20f0a5359
[INFO] checking ricemiller/conway_searcher_rust against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricemiller%2Fconway_searcher_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ricemiller/conway_searcher_rust
[INFO] finished tweaking git repo https://github.com/ricemiller/conway_searcher_rust
[INFO] tweaked toml for git repo https://github.com/ricemiller/conway_searcher_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ricemiller/conway_searcher_rust on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ricemiller/conway_searcher_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minifb v0.12.0
[INFO] [stderr]   Downloaded orbclient v0.3.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25d147b815011b070676896923d09945176544f9b5f3e57eebd9e50639c53a57
[INFO] running `Command { std: "docker" "start" "-a" "25d147b815011b070676896923d09945176544f9b5f3e57eebd9e50639c53a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25d147b815011b070676896923d09945176544f9b5f3e57eebd9e50639c53a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d147b815011b070676896923d09945176544f9b5f3e57eebd9e50639c53a57", kill_on_drop: false }`
[INFO] [stdout] 25d147b815011b070676896923d09945176544f9b5f3e57eebd9e50639c53a57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d89dac1cc9534bddebc434ffd05b013d4abe776e09fbfdff75aa0fcb1b62b8d
[INFO] running `Command { std: "docker" "start" "-a" "5d89dac1cc9534bddebc434ffd05b013d4abe776e09fbfdff75aa0fcb1b62b8d", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling minifb v0.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking conway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "5d89dac1cc9534bddebc434ffd05b013d4abe776e09fbfdff75aa0fcb1b62b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d89dac1cc9534bddebc434ffd05b013d4abe776e09fbfdff75aa0fcb1b62b8d", kill_on_drop: false }`
[INFO] [stdout] 5d89dac1cc9534bddebc434ffd05b013d4abe776e09fbfdff75aa0fcb1b62b8d