[INFO] fetching crate v9 0.1.42...
[INFO] checking v9-0.1.42 against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] extracting crate v9 0.1.42 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate v9 0.1.42 on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate v9 0.1.42
[INFO] finished tweaking crates.io crate v9 0.1.42
[INFO] tweaked toml for crates.io crate v9 0.1.42 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate v9 0.1.42 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 104515d757f7a20e3360f35f0f001c17bcf0adffdcf1ae86671332f0bfceea81
[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" "104515d757f7a20e3360f35f0f001c17bcf0adffdcf1ae86671332f0bfceea81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "104515d757f7a20e3360f35f0f001c17bcf0adffdcf1ae86671332f0bfceea81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "104515d757f7a20e3360f35f0f001c17bcf0adffdcf1ae86671332f0bfceea81", kill_on_drop: false }`
[INFO] [stdout] 104515d757f7a20e3360f35f0f001c17bcf0adffdcf1ae86671332f0bfceea81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64e19b4956d9563de3e6d777b54861195748bca797e16c402d4c7393634132d0
[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" "64e19b4956d9563de3e6d777b54861195748bca797e16c402d4c7393634132d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling v9-attr v0.1.0
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling paste-impl v0.1.5
[INFO] [stderr]     Checking paste v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking v9 v0.1.42 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.72s
[INFO] running `Command { std: "docker" "inspect" "64e19b4956d9563de3e6d777b54861195748bca797e16c402d4c7393634132d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e19b4956d9563de3e6d777b54861195748bca797e16c402d4c7393634132d0", kill_on_drop: false }`
[INFO] [stdout] 64e19b4956d9563de3e6d777b54861195748bca797e16c402d4c7393634132d0