[INFO] cloning repository https://github.com/nwtgck/piping-server-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nwtgck/piping-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwtgck%2Fpiping-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwtgck%2Fpiping-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3db97e93f79f0c1e4383dc1ef257b7debf10cc6
[INFO] checking nwtgck/piping-server-rust against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwtgck%2Fpiping-server-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nwtgck/piping-server-rust on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nwtgck/piping-server-rust
[INFO] finished tweaking git repo https://github.com/nwtgck/piping-server-rust
[INFO] tweaked toml for git repo https://github.com/nwtgck/piping-server-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nwtgck/piping-server-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-attributes v0.1.9
[INFO] [stderr]   Downloaded ct-logs v0.7.0
[INFO] [stderr]   Downloaded security-framework-sys v1.0.0
[INFO] [stderr]   Downloaded security-framework v1.0.0
[INFO] [stderr]   Downloaded h2 v0.2.2
[INFO] [stderr]   Downloaded tracing v0.1.9
[INFO] [stderr]   Downloaded rustls-native-certs v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85a609c32f3157c324024627007eceec5a5fe5bd6fdfe11af7965734c57227db
[INFO] running `Command { std: "docker" "start" "-a" "85a609c32f3157c324024627007eceec5a5fe5bd6fdfe11af7965734c57227db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85a609c32f3157c324024627007eceec5a5fe5bd6fdfe11af7965734c57227db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a609c32f3157c324024627007eceec5a5fe5bd6fdfe11af7965734c57227db", kill_on_drop: false }`
[INFO] [stdout] 85a609c32f3157c324024627007eceec5a5fe5bd6fdfe11af7965734c57227db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0341611ebecc10b4bb8904e73dfcbfac17160fe0953f5f10b6af6da8e35dd7ae
[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" "0341611ebecc10b4bb8904e73dfcbfac17160fe0953f5f10b6af6da8e35dd7ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking ct-logs v0.7.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking rustls-native-certs v0.4.0
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling rustversion v1.0.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]     Checking tracing v0.1.9
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-rustls v0.14.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking piping-server v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 43s
[INFO] running `Command { std: "docker" "inspect" "0341611ebecc10b4bb8904e73dfcbfac17160fe0953f5f10b6af6da8e35dd7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0341611ebecc10b4bb8904e73dfcbfac17160fe0953f5f10b6af6da8e35dd7ae", kill_on_drop: false }`
[INFO] [stdout] 0341611ebecc10b4bb8904e73dfcbfac17160fe0953f5f10b6af6da8e35dd7ae