[INFO] fetching crate dmux 0.6.2...
[INFO] checking dmux-0.6.2 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate dmux 0.6.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dmux 0.6.2 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dmux 0.6.2
[INFO] finished tweaking crates.io crate dmux 0.6.2
[INFO] tweaked toml for crates.io crate dmux 0.6.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate dmux 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68e9626bd538a3673bbfff5054e1d39d51db926192f306b77daf15a73611b548
[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" "68e9626bd538a3673bbfff5054e1d39d51db926192f306b77daf15a73611b548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e9626bd538a3673bbfff5054e1d39d51db926192f306b77daf15a73611b548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e9626bd538a3673bbfff5054e1d39d51db926192f306b77daf15a73611b548", kill_on_drop: false }`
[INFO] [stdout] 68e9626bd538a3673bbfff5054e1d39d51db926192f306b77daf15a73611b548
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4186b011e7847a5a30a68e5304b80787e0214a6962e4d96632522296d6cdcf88
[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" "4186b011e7847a5a30a68e5304b80787e0214a6962e4d96632522296d6cdcf88", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking tmux_interface v0.0.6
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking grep-cli v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking dmux v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.22s
[INFO] running `Command { std: "docker" "inspect" "4186b011e7847a5a30a68e5304b80787e0214a6962e4d96632522296d6cdcf88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4186b011e7847a5a30a68e5304b80787e0214a6962e4d96632522296d6cdcf88", kill_on_drop: false }`
[INFO] [stdout] 4186b011e7847a5a30a68e5304b80787e0214a6962e4d96632522296d6cdcf88