[INFO] fetching crate microamp-tools 0.1.0-alpha.3...
[INFO] checking microamp-tools-0.1.0-alpha.3 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate microamp-tools 0.1.0-alpha.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate microamp-tools 0.1.0-alpha.3 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microamp-tools 0.1.0-alpha.3
[INFO] finished tweaking crates.io crate microamp-tools 0.1.0-alpha.3
[INFO] tweaked toml for crates.io crate microamp-tools 0.1.0-alpha.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate microamp-tools 0.1.0-alpha.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded rustc-cfg v0.4.0
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded synstructure v0.12.1
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded backtrace v0.3.38
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[INFO] [stderr]   Downloaded zero v0.1.2
[INFO] [stderr]   Downloaded filetime v0.2.7
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded libc v0.2.64
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded walkdir v2.2.9
[INFO] [stderr]   Downloaded same-file v1.0.5
[INFO] [stderr]   Downloaded xmas-elf v0.6.2
[INFO] [stderr]   Downloaded cargo-project v0.2.2
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2049cf0f12d3e1efa8c83d7a73577bb48f7eaa243511a1fc182870cc817f1200
[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" "2049cf0f12d3e1efa8c83d7a73577bb48f7eaa243511a1fc182870cc817f1200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2049cf0f12d3e1efa8c83d7a73577bb48f7eaa243511a1fc182870cc817f1200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2049cf0f12d3e1efa8c83d7a73577bb48f7eaa243511a1fc182870cc817f1200", kill_on_drop: false }`
[INFO] [stdout] 2049cf0f12d3e1efa8c83d7a73577bb48f7eaa243511a1fc182870cc817f1200
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7c9f29a415e89ac8338c9102ccdcad7aa7b9ed000757564f6e58fc99695ac1c
[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" "b7c9f29a415e89ac8338c9102ccdcad7aa7b9ed000757564f6e58fc99695ac1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking cargo-project v0.2.2
[INFO] [stderr]     Checking microamp-tools v0.1.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.61s
[INFO] running `Command { std: "docker" "inspect" "b7c9f29a415e89ac8338c9102ccdcad7aa7b9ed000757564f6e58fc99695ac1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c9f29a415e89ac8338c9102ccdcad7aa7b9ed000757564f6e58fc99695ac1c", kill_on_drop: false }`
[INFO] [stdout] b7c9f29a415e89ac8338c9102ccdcad7aa7b9ed000757564f6e58fc99695ac1c