[INFO] fetching crate acat 0.1.2...
[INFO] checking acat-0.1.2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate acat 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate acat 0.1.2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate acat 0.1.2
[INFO] finished tweaking crates.io crate acat 0.1.2
[INFO] tweaked toml for crates.io crate acat 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate acat 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random_color v0.4.4
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dceb77372f77ac6892dacd460d97225e305b00f5ff4673a6b0c81a3d44b3d6bc
[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" "dceb77372f77ac6892dacd460d97225e305b00f5ff4673a6b0c81a3d44b3d6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dceb77372f77ac6892dacd460d97225e305b00f5ff4673a6b0c81a3d44b3d6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dceb77372f77ac6892dacd460d97225e305b00f5ff4673a6b0c81a3d44b3d6bc", kill_on_drop: false }`
[INFO] [stdout] dceb77372f77ac6892dacd460d97225e305b00f5ff4673a6b0c81a3d44b3d6bc
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 32dd3bd6c51693edc2bbd45613ec130a021414e743ef951c0135028a8d0622f6
[INFO] running `Command { std: "docker" "start" "-a" "32dd3bd6c51693edc2bbd45613ec130a021414e743ef951c0135028a8d0622f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking random_color v0.4.4
[INFO] [stderr]     Checking acat v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AppSettings`, `ArgGroup`, `SubCommand`
[INFO] [stdout]  --> src/clap_app.rs:2:63
[INFO] [stdout]   |
[INFO] [stdout] 2 |     crate_authors, crate_name, crate_version, App as ClapApp, AppSettings, Arg, ArgGroup,
[INFO] [stdout]   |                                                               ^^^^^^^^^^^       ^^^^^^^^
[INFO] [stdout] 3 |     SubCommand,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppSettings`, `ArgGroup`, `SubCommand`
[INFO] [stdout]  --> src/clap_app.rs:2:63
[INFO] [stdout]   |
[INFO] [stdout] 2 |     crate_authors, crate_name, crate_version, App as ClapApp, AppSettings, Arg, ArgGroup,
[INFO] [stdout]   |                                                               ^^^^^^^^^^^       ^^^^^^^^
[INFO] [stdout] 3 |     SubCommand,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::Rng;
[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 10.61s
[INFO] running `Command { std: "docker" "inspect" "32dd3bd6c51693edc2bbd45613ec130a021414e743ef951c0135028a8d0622f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32dd3bd6c51693edc2bbd45613ec130a021414e743ef951c0135028a8d0622f6", kill_on_drop: false }`
[INFO] [stdout] 32dd3bd6c51693edc2bbd45613ec130a021414e743ef951c0135028a8d0622f6