[INFO] fetching crate ambassador 0.2.1...
[INFO] checking ambassador-0.2.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate ambassador 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ambassador 0.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ambassador 0.2.1
[INFO] finished tweaking crates.io crate ambassador 0.2.1
[INFO] tweaked toml for crates.io crate ambassador 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44a64cd905d7bdca655463a4205cc42652b63ba8e5117345c816732ad6a9a6e9
[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" "44a64cd905d7bdca655463a4205cc42652b63ba8e5117345c816732ad6a9a6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44a64cd905d7bdca655463a4205cc42652b63ba8e5117345c816732ad6a9a6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a64cd905d7bdca655463a4205cc42652b63ba8e5117345c816732ad6a9a6e9", kill_on_drop: false }`
[INFO] [stdout] 44a64cd905d7bdca655463a4205cc42652b63ba8e5117345c816732ad6a9a6e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a108b668efdb5e4988c989fbfe8570a827a741b1288383f0c0a53c28e3ed1a0e
[INFO] running `Command { std: "docker" "start" "-a" "a108b668efdb5e4988c989fbfe8570a827a741b1288383f0c0a53c28e3ed1a0e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ambassador v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking proc-macro2 v1.0.29
[INFO] [stderr]     Checking tester v0.6.0
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stderr]     Checking syn v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.10s
[INFO] running `Command { std: "docker" "inspect" "a108b668efdb5e4988c989fbfe8570a827a741b1288383f0c0a53c28e3ed1a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a108b668efdb5e4988c989fbfe8570a827a741b1288383f0c0a53c28e3ed1a0e", kill_on_drop: false }`
[INFO] [stdout] a108b668efdb5e4988c989fbfe8570a827a741b1288383f0c0a53c28e3ed1a0e
