[INFO] cloning repository https://github.com/jansc/ncgopher
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jansc/ncgopher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8423a250ef241968d90f11f24a324e8e227e63f
[INFO] checking jansc/ncgopher against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jansc/ncgopher on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jansc/ncgopher
[INFO] finished tweaking git repo https://github.com/jansc/ncgopher
[INFO] tweaked toml for git repo https://github.com/jansc/ncgopher written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jansc/ncgopher already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f10872893420a303820a791eea53ba81e4b89e71eb071ca65f969f7ccb242824
[INFO] running `"docker" "start" "-a" "f10872893420a303820a791eea53ba81e4b89e71eb071ca65f969f7ccb242824"`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking enum-map-internals v0.2.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling enumset_derive v0.4.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking enum-map v0.6.0
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking enumset v0.4.0
[INFO] [stderr]     Checking cursive v0.14.0
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking ncgopher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "f10872893420a303820a791eea53ba81e4b89e71eb071ca65f969f7ccb242824"`
[INFO] running `"docker" "rm" "-f" "f10872893420a303820a791eea53ba81e4b89e71eb071ca65f969f7ccb242824"`
[INFO] [stdout] f10872893420a303820a791eea53ba81e4b89e71eb071ca65f969f7ccb242824