[INFO] updating cached repository https://github.com/jansc/ncgopher
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/jansc/ncgopher
[INFO] [stderr]    c569ded..63925c8  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 63925c80b12dcb6285b9fc3902e2fe7e8b6c3286
[INFO] checking jansc/ncgopher against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jansc/ncgopher on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "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-2/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 25a6d1e7c88cfb7dbdaf6536a32d48bcb76fca77a05495a1c6cf7a1ee6cc4e1a
[INFO] running `"docker" "start" "-a" "25a6d1e7c88cfb7dbdaf6536a32d48bcb76fca77a05495a1c6cf7a1ee6cc4e1a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking signal-hook v0.1.14
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]     Checking enum-map v0.6.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.4.4
[INFO] [stderr]     Checking enumset v0.4.5
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking cursive v0.14.0
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking ncgopher v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] running `"docker" "inspect" "25a6d1e7c88cfb7dbdaf6536a32d48bcb76fca77a05495a1c6cf7a1ee6cc4e1a"`
[INFO] running `"docker" "rm" "-f" "25a6d1e7c88cfb7dbdaf6536a32d48bcb76fca77a05495a1c6cf7a1ee6cc4e1a"`
[INFO] [stdout] 25a6d1e7c88cfb7dbdaf6536a32d48bcb76fca77a05495a1c6cf7a1ee6cc4e1a