[INFO] fetching crate mles 1.1.6...
[INFO] checking mles-1.1.6 against 1.55.0 for beta-1.56-3
[INFO] extracting crate mles 1.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mles 1.1.6 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 mles 1.1.6
[INFO] finished tweaking crates.io crate mles 1.1.6
[INFO] tweaked toml for crates.io crate mles 1.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mles 1.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 5e10a2fe40b358fdbcfa08bac781f1dadb39c7f84e3ee8489a2956764b22fd48
[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" "5e10a2fe40b358fdbcfa08bac781f1dadb39c7f84e3ee8489a2956764b22fd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e10a2fe40b358fdbcfa08bac781f1dadb39c7f84e3ee8489a2956764b22fd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e10a2fe40b358fdbcfa08bac781f1dadb39c7f84e3ee8489a2956764b22fd48", kill_on_drop: false }`
[INFO] [stdout] 5e10a2fe40b358fdbcfa08bac781f1dadb39c7f84e3ee8489a2956764b22fd48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] bb36db66653d021bc15653713cdbd4eeaa9c64bbfdf9582ed01cd8cb80bacfed
[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" "bb36db66653d021bc15653713cdbd4eeaa9c64bbfdf9582ed01cd8cb80bacfed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking mles-utils v1.1.6
[INFO] [stderr]     Checking mles v1.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.38s
[INFO] running `Command { std: "docker" "inspect" "bb36db66653d021bc15653713cdbd4eeaa9c64bbfdf9582ed01cd8cb80bacfed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb36db66653d021bc15653713cdbd4eeaa9c64bbfdf9582ed01cd8cb80bacfed", kill_on_drop: false }`
[INFO] [stdout] bb36db66653d021bc15653713cdbd4eeaa9c64bbfdf9582ed01cd8cb80bacfed
