[INFO] fetching crate varlink_parser 4.0.4...
[INFO] checking varlink_parser-4.0.4 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate varlink_parser 4.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate varlink_parser 4.0.4 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate varlink_parser 4.0.4
[INFO] finished tweaking crates.io crate varlink_parser 4.0.4
[INFO] tweaked toml for crates.io crate varlink_parser 4.0.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate varlink_parser 4.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded peg-macros v0.6.2
[INFO] [stderr]   Downloaded peg v0.6.2
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] [stderr]   Downloaded peg-runtime v0.6.2
[INFO] [stderr]   Downloaded chainerror v0.4.3
[INFO] [stderr]   Downloaded quote v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f1102f21bcc34da747e0d548872e3327d542edd7f4c000dee74d852fe85957e
[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" "1f1102f21bcc34da747e0d548872e3327d542edd7f4c000dee74d852fe85957e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f1102f21bcc34da747e0d548872e3327d542edd7f4c000dee74d852fe85957e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1102f21bcc34da747e0d548872e3327d542edd7f4c000dee74d852fe85957e", kill_on_drop: false }`
[INFO] [stdout] 1f1102f21bcc34da747e0d548872e3327d542edd7f4c000dee74d852fe85957e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b26e646acb01489adef1f4e9d7abfc91502d5eab04eae9547aa2c450f2c63765
[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" "b26e646acb01489adef1f4e9d7abfc91502d5eab04eae9547aa2c450f2c63765", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling peg-runtime v0.6.2
[INFO] [stderr]    Compiling varlink_parser v4.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking chainerror v0.4.3
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling peg-macros v0.6.2
[INFO] [stderr]     Checking peg v0.6.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.04s
[INFO] running `Command { std: "docker" "inspect" "b26e646acb01489adef1f4e9d7abfc91502d5eab04eae9547aa2c450f2c63765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26e646acb01489adef1f4e9d7abfc91502d5eab04eae9547aa2c450f2c63765", kill_on_drop: false }`
[INFO] [stdout] b26e646acb01489adef1f4e9d7abfc91502d5eab04eae9547aa2c450f2c63765