[INFO] fetching crate emver 0.1.0...
[INFO] checking emver-0.1.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate emver 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate emver 0.1.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emver 0.1.0
[INFO] finished tweaking crates.io crate emver 0.1.0
[INFO] tweaked toml for crates.io crate emver 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fp-core v0.1.9
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a0f5c7216bd216dc376aed335105e98e9a1307e682fdc62950ce603b2bb4efb
[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" "2a0f5c7216bd216dc376aed335105e98e9a1307e682fdc62950ce603b2bb4efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a0f5c7216bd216dc376aed335105e98e9a1307e682fdc62950ce603b2bb4efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a0f5c7216bd216dc376aed335105e98e9a1307e682fdc62950ce603b2bb4efb", kill_on_drop: false }`
[INFO] [stdout] 2a0f5c7216bd216dc376aed335105e98e9a1307e682fdc62950ce603b2bb4efb
[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=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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e93fb144aec761d9eb7335642924f95208ce4e2becc8459e2b4f5f441cc9f0ab
[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" "e93fb144aec761d9eb7335642924f95208ce4e2becc8459e2b4f5f441cc9f0ab", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking fp-core v0.1.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]     Checking emver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.87s
[INFO] running `Command { std: "docker" "inspect" "e93fb144aec761d9eb7335642924f95208ce4e2becc8459e2b4f5f441cc9f0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93fb144aec761d9eb7335642924f95208ce4e2becc8459e2b4f5f441cc9f0ab", kill_on_drop: false }`
[INFO] [stdout] e93fb144aec761d9eb7335642924f95208ce4e2becc8459e2b4f5f441cc9f0ab