[INFO] fetching crate voile 0.2.6...
[INFO] checking voile-0.2.6 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate voile 0.2.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate voile 0.2.6 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate voile 0.2.6
[INFO] finished tweaking crates.io crate voile 0.2.6
[INFO] tweaked toml for crates.io crate voile 0.2.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate voile 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71cee2ec7f7e7e971a29944478095517dbed88c3bdf1993f0938c5a8996f78d3
[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" "71cee2ec7f7e7e971a29944478095517dbed88c3bdf1993f0938c5a8996f78d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71cee2ec7f7e7e971a29944478095517dbed88c3bdf1993f0938c5a8996f78d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71cee2ec7f7e7e971a29944478095517dbed88c3bdf1993f0938c5a8996f78d3", kill_on_drop: false }`
[INFO] [stdout] 71cee2ec7f7e7e971a29944478095517dbed88c3bdf1993f0938c5a8996f78d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e0c48741a2cabdc81ac70721b84b57c7e5bf890d017e7c4d81ff81a547dfa7
[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" "19e0c48741a2cabdc81ac70721b84b57c7e5bf890d017e7c4d81ff81a547dfa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking voile-util v0.2.2
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking minitt-util v0.2.4
[INFO] [stderr]     Checking voile v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.96s
[INFO] running `Command { std: "docker" "inspect" "19e0c48741a2cabdc81ac70721b84b57c7e5bf890d017e7c4d81ff81a547dfa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e0c48741a2cabdc81ac70721b84b57c7e5bf890d017e7c4d81ff81a547dfa7", kill_on_drop: false }`
[INFO] [stdout] 19e0c48741a2cabdc81ac70721b84b57c7e5bf890d017e7c4d81ff81a547dfa7