[INFO] updating cached repository https://github.com/0b101010/asccc
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f3f782a4a90d5360772fff3f4078dfeee963fcf
[INFO] checking 0b101010/asccc against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0b101010%2Fasccc" "/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/0b101010/asccc 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/0b101010/asccc
[INFO] finished tweaking git repo https://github.com/0b101010/asccc
[INFO] tweaked toml for git repo https://github.com/0b101010/asccc written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/0b101010/asccc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-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" "+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] 6d569d10fd6c0b3879fa553e665b7cab09a9345bc9021bc8149b4c4b4bfdddf8
[INFO] running `"docker" "start" "-a" "6d569d10fd6c0b3879fa553e665b7cab09a9345bc9021bc8149b4c4b4bfdddf8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking backtrace-sys v0.1.37
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking threadpool v1.8.0
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]     Checking coap v0.7.5
[INFO] [stderr]     Checking asccc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:97:54
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn coap_message_to_string(message: Packet) -> Result<(String), failure::Error> {
[INFO] [stderr]    |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:97:54
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn coap_message_to_string(message: Packet) -> Result<(String), failure::Error> {
[INFO] [stderr]    |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `"docker" "inspect" "6d569d10fd6c0b3879fa553e665b7cab09a9345bc9021bc8149b4c4b4bfdddf8"`
[INFO] running `"docker" "rm" "-f" "6d569d10fd6c0b3879fa553e665b7cab09a9345bc9021bc8149b4c4b4bfdddf8"`
[INFO] [stdout] 6d569d10fd6c0b3879fa553e665b7cab09a9345bc9021bc8149b4c4b4bfdddf8