[INFO] fetching crate syswall_cli 0.1.2...
[INFO] checking syswall_cli-0.1.2 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate syswall_cli 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate syswall_cli 0.1.2 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syswall_cli 0.1.2
[INFO] finished tweaking crates.io crate syswall_cli 0.1.2
[INFO] tweaked toml for crates.io crate syswall_cli 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate syswall_cli 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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 v0.4.27
[INFO] [stderr]   Downloaded quote v0.6.11
[INFO] [stderr]   Downloaded itoa v0.4.3
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded ryu v0.2.7
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded arc-swap v0.3.7
[INFO] [stderr]   Downloaded winapi v0.3.6
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded bitflags v1.0.4
[INFO] [stderr]   Downloaded serde v1.0.89
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded serde_derive v1.0.89
[INFO] [stderr]   Downloaded cc v1.0.31
[INFO] [stderr]   Downloaded signal-hook v0.1.8
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded syn v0.15.29
[INFO] [stderr]   Downloaded syswall v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.50
[INFO] [stderr]   Downloaded log v0.4.6
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 682627b0a58c019cf54563e7d3cedb6e4a0ae447282aad2435ec38638ba5ac0e
[INFO] running `Command { std: "docker" "start" "-a" "682627b0a58c019cf54563e7d3cedb6e4a0ae447282aad2435ec38638ba5ac0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "682627b0a58c019cf54563e7d3cedb6e4a0ae447282aad2435ec38638ba5ac0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "682627b0a58c019cf54563e7d3cedb6e4a0ae447282aad2435ec38638ba5ac0e", kill_on_drop: false }`
[INFO] [stdout] 682627b0a58c019cf54563e7d3cedb6e4a0ae447282aad2435ec38638ba5ac0e
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fa228f72c67991ee581de321c5b7af8770f3cbaef89a28e8946dbd3cd090751
[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" "3fa228f72c67991ee581de321c5b7af8770f3cbaef89a28e8946dbd3cd090751", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking arc-swap v0.3.7
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking signal-hook v0.1.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking syswall v0.3.1
[INFO] [stderr]     Checking syswall_cli v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.79s
[INFO] running `Command { std: "docker" "inspect" "3fa228f72c67991ee581de321c5b7af8770f3cbaef89a28e8946dbd3cd090751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa228f72c67991ee581de321c5b7af8770f3cbaef89a28e8946dbd3cd090751", kill_on_drop: false }`
[INFO] [stdout] 3fa228f72c67991ee581de321c5b7af8770f3cbaef89a28e8946dbd3cd090751