[INFO] cloning repository https://github.com/aaronmckenna/flexulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaronmckenna/flexulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronmckenna%2Fflexulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronmckenna%2Fflexulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a212d954302cf3983f994fcbf5efb9d379534cb
[INFO] checking aaronmckenna/flexulator against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronmckenna%2Fflexulator" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aaronmckenna/flexulator on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aaronmckenna/flexulator
[INFO] finished tweaking git repo https://github.com/aaronmckenna/flexulator
[INFO] tweaked toml for git repo https://github.com/aaronmckenna/flexulator written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/aaronmckenna/flexulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb18ff3f6e9fd1ff6a8eb6dc1f2affbf141345d88ada83741c44f264e8b6129f
[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" "eb18ff3f6e9fd1ff6a8eb6dc1f2affbf141345d88ada83741c44f264e8b6129f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb18ff3f6e9fd1ff6a8eb6dc1f2affbf141345d88ada83741c44f264e8b6129f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb18ff3f6e9fd1ff6a8eb6dc1f2affbf141345d88ada83741c44f264e8b6129f", kill_on_drop: false }`
[INFO] [stdout] eb18ff3f6e9fd1ff6a8eb6dc1f2affbf141345d88ada83741c44f264e8b6129f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b145b9ac388b18230ef397ed39f567117abfc3f7bbeacd6ff0e4ead4648e0b0
[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" "6b145b9ac388b18230ef397ed39f567117abfc3f7bbeacd6ff0e4ead4648e0b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking flexulator v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.06s
[INFO] running `Command { std: "docker" "inspect" "6b145b9ac388b18230ef397ed39f567117abfc3f7bbeacd6ff0e4ead4648e0b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b145b9ac388b18230ef397ed39f567117abfc3f7bbeacd6ff0e4ead4648e0b0", kill_on_drop: false }`
[INFO] [stdout] 6b145b9ac388b18230ef397ed39f567117abfc3f7bbeacd6ff0e4ead4648e0b0