[INFO] fetching crate uu_df 0.0.4...
[INFO] checking uu_df-0.0.4 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate uu_df 0.0.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate uu_df 0.0.4 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_df 0.0.4
[INFO] finished tweaking crates.io crate uu_df 0.0.4
[INFO] tweaked toml for crates.io crate uu_df 0.0.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate uu_df 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fe64cb172299572ec8251c18dcd386fb5d0799c7f5dc709dbb6f429c73eaa4d
[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" "0fe64cb172299572ec8251c18dcd386fb5d0799c7f5dc709dbb6f429c73eaa4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe64cb172299572ec8251c18dcd386fb5d0799c7f5dc709dbb6f429c73eaa4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe64cb172299572ec8251c18dcd386fb5d0799c7f5dc709dbb6f429c73eaa4d", kill_on_drop: false }`
[INFO] [stdout] 0fe64cb172299572ec8251c18dcd386fb5d0799c7f5dc709dbb6f429c73eaa4d
[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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8b5071a57916d1c34d551147b14aa73635b5f6edcc26c41e5c4ec4f0ad709b1
[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" "d8b5071a57916d1c34d551147b14aa73635b5f6edcc26c41e5c4ec4f0ad709b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking dunce v1.0.1
[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 wild v2.0.4
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking uucore v0.0.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling uucore_procs v0.0.5
[INFO] [stderr]     Checking uu_df v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `print_grand_total`
[INFO] [stdout]    --> src/df.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     print_grand_total: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `print_grand_total`
[INFO] [stdout]    --> src/df.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     print_grand_total: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.81s
[INFO] running `Command { std: "docker" "inspect" "d8b5071a57916d1c34d551147b14aa73635b5f6edcc26c41e5c4ec4f0ad709b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b5071a57916d1c34d551147b14aa73635b5f6edcc26c41e5c4ec4f0ad709b1", kill_on_drop: false }`
[INFO] [stdout] d8b5071a57916d1c34d551147b14aa73635b5f6edcc26c41e5c4ec4f0ad709b1