[INFO] cloning repository https://github.com/a1phabeta/tad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/a1phabeta/tad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa1phabeta%2Ftad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa1phabeta%2Ftad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0ef4f44c1c88ed0764c3e45d51c882770f8ffb4
[INFO] checking a1phabeta/tad against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fa1phabeta%2Ftad" "/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/a1phabeta/tad on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/a1phabeta/tad
[INFO] finished tweaking git repo https://github.com/a1phabeta/tad
[INFO] tweaked toml for git repo https://github.com/a1phabeta/tad written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/a1phabeta/tad already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded owo-colors v1.3.0
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded eyre v0.6.5
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded chrono-tz v0.5.3
[INFO] [stderr]   Downloaded color-eyre v0.5.11
[INFO] [stderr]   Downloaded serde_json v1.0.65
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5b1c5c4d4f7cdf9dc2c8af8a46c6f1b47127f07524b08fec6f40f6521202db1
[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" "a5b1c5c4d4f7cdf9dc2c8af8a46c6f1b47127f07524b08fec6f40f6521202db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5b1c5c4d4f7cdf9dc2c8af8a46c6f1b47127f07524b08fec6f40f6521202db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b1c5c4d4f7cdf9dc2c8af8a46c6f1b47127f07524b08fec6f40f6521202db1", kill_on_drop: false }`
[INFO] [stdout] a5b1c5c4d4f7cdf9dc2c8af8a46c6f1b47127f07524b08fec6f40f6521202db1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28927409f5674bd69b0d376c520c6057f3eab714f87055ef409e43bb78026b7
[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" "c28927409f5674bd69b0d376c520c6057f3eab714f87055ef409e43bb78026b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling serde_json v1.0.65
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking color-eyre v0.5.11
[INFO] [stderr]     Checking tad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.94s
[INFO] running `Command { std: "docker" "inspect" "c28927409f5674bd69b0d376c520c6057f3eab714f87055ef409e43bb78026b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28927409f5674bd69b0d376c520c6057f3eab714f87055ef409e43bb78026b7", kill_on_drop: false }`
[INFO] [stdout] c28927409f5674bd69b0d376c520c6057f3eab714f87055ef409e43bb78026b7