[INFO] crate serialitm 0.1.0 is already in cache
[INFO] checking serialitm-0.1.0 against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] extracting crate serialitm 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serialitm 0.1.0 on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serialitm 0.1.0
[INFO] finished tweaking crates.io crate serialitm 0.1.0
[INFO] tweaked toml for crates.io crate serialitm 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate serialitm 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "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] 426bd0a6134fb8cf2a3cbf70b5f01bc7f48febe6b5f5bdd85a4b8daa1a2bd560
[INFO] running `Command { std: "docker" "start" "-a" "426bd0a6134fb8cf2a3cbf70b5f01bc7f48febe6b5f5bdd85a4b8daa1a2bd560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "426bd0a6134fb8cf2a3cbf70b5f01bc7f48febe6b5f5bdd85a4b8daa1a2bd560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426bd0a6134fb8cf2a3cbf70b5f01bc7f48febe6b5f5bdd85a4b8daa1a2bd560", kill_on_drop: false }`
[INFO] [stdout] 426bd0a6134fb8cf2a3cbf70b5f01bc7f48febe6b5f5bdd85a4b8daa1a2bd560
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e81b9d70fef43e8ff754de95713cf4c4bf3e5384e07f6856090be0b886cf435
[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" "0e81b9d70fef43e8ff754de95713cf4c4bf3e5384e07f6856090be0b886cf435", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling itm v0.3.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serialitm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.37s
[INFO] running `Command { std: "docker" "inspect" "0e81b9d70fef43e8ff754de95713cf4c4bf3e5384e07f6856090be0b886cf435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e81b9d70fef43e8ff754de95713cf4c4bf3e5384e07f6856090be0b886cf435", kill_on_drop: false }`
[INFO] [stdout] 0e81b9d70fef43e8ff754de95713cf4c4bf3e5384e07f6856090be0b886cf435