[INFO] fetching crate moleculec 0.6.1...
[INFO] checking moleculec-0.6.1 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate moleculec 0.6.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate moleculec 0.6.1 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate moleculec 0.6.1
[INFO] finished tweaking crates.io crate moleculec 0.6.1
[INFO] tweaked toml for crates.io crate moleculec 0.6.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate moleculec 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.2
[INFO] [stderr]   Downloaded molecule v0.6.1
[INFO] [stderr]   Downloaded property v0.3.0
[INFO] [stderr]   Downloaded molecule-codegen v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e1601e6572e55d76d678cf7a4917f9fa9ab76b8cc293850f3334d8ea262fe38
[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" "3e1601e6572e55d76d678cf7a4917f9fa9ab76b8cc293850f3334d8ea262fe38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e1601e6572e55d76d678cf7a4917f9fa9ab76b8cc293850f3334d8ea262fe38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1601e6572e55d76d678cf7a4917f9fa9ab76b8cc293850f3334d8ea262fe38", kill_on_drop: false }`
[INFO] [stdout] 3e1601e6572e55d76d678cf7a4917f9fa9ab76b8cc293850f3334d8ea262fe38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 189947fd6a86d91ae156d60e9280951ad47d925b3187c9017eb69afd49bbf75f
[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" "189947fd6a86d91ae156d60e9280951ad47d925b3187c9017eb69afd49bbf75f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking case v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking molecule v0.6.1
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking which v3.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling property v0.3.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking molecule-codegen v0.6.1
[INFO] [stderr]     Checking moleculec v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.19s
[INFO] running `Command { std: "docker" "inspect" "189947fd6a86d91ae156d60e9280951ad47d925b3187c9017eb69afd49bbf75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189947fd6a86d91ae156d60e9280951ad47d925b3187c9017eb69afd49bbf75f", kill_on_drop: false }`
[INFO] [stdout] 189947fd6a86d91ae156d60e9280951ad47d925b3187c9017eb69afd49bbf75f