[INFO] fetching crate arrsync 0.1.0...
[INFO] checking arrsync-0.1.0 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate arrsync 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate arrsync 0.1.0 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arrsync 0.1.0
[INFO] finished tweaking crates.io crate arrsync 0.1.0
[INFO] tweaked toml for crates.io crate arrsync 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36147bca037faa550ea529e84cc64f0cc2b841810b286ed188760a92ac5db5e9
[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" "36147bca037faa550ea529e84cc64f0cc2b841810b286ed188760a92ac5db5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36147bca037faa550ea529e84cc64f0cc2b841810b286ed188760a92ac5db5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36147bca037faa550ea529e84cc64f0cc2b841810b286ed188760a92ac5db5e9", kill_on_drop: false }`
[INFO] [stdout] 36147bca037faa550ea529e84cc64f0cc2b841810b286ed188760a92ac5db5e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69148fb33143c0a09d728a561a742d47151d061ab9174ab48fc78f67cd5d9676
[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" "69148fb33143c0a09d728a561a742d47151d061ab9174ab48fc78f67cd5d9676", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking unix_mode v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking hexdump v0.1.1
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling async-trait v0.1.49
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking arrsync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/receiver.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/receiver.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/client.rs:135:50
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("Getting base element of path {:?}",),
[INFO] [stdout]     |                                                              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("Getting base element of path {:?}", ...,),
[INFO] [stdout]     |                                                                   ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("{}", "Getting base element of path {:?}",),
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/client.rs:135:50
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("Getting base element of path {:?}",),
[INFO] [stdout]     |                                                              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("Getting base element of path {:?}", ...,),
[INFO] [stdout]     |                                                                   ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 None => panic!("{}", "Getting base element of path {:?}",),
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.57s
[INFO] running `Command { std: "docker" "inspect" "69148fb33143c0a09d728a561a742d47151d061ab9174ab48fc78f67cd5d9676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69148fb33143c0a09d728a561a742d47151d061ab9174ab48fc78f67cd5d9676", kill_on_drop: false }`
[INFO] [stdout] 69148fb33143c0a09d728a561a742d47151d061ab9174ab48fc78f67cd5d9676