[INFO] fetching crate cyberdrop-dl 0.1.0...
[INFO] checking cyberdrop-dl-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate cyberdrop-dl 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cyberdrop-dl 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cyberdrop-dl 0.1.0
[INFO] finished tweaking crates.io crate cyberdrop-dl 0.1.0
[INFO] tweaked toml for crates.io crate cyberdrop-dl 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cyberdrop-dl 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte-unit v4.0.12
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[INFO] [stdout] 6974559ef4706c3ad81964f0925a3f3a57526669ece55211522c5411bbf0c3cf
[INFO] running `Command { std: "docker" "start" "-a" "6974559ef4706c3ad81964f0925a3f3a57526669ece55211522c5411bbf0c3cf", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "6974559ef4706c3ad81964f0925a3f3a57526669ece55211522c5411bbf0c3cf", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8354fa4ea5937f6b47a7e2ce675876ffe3a5082b17df95116997e5e863aefd95
[INFO] running `Command { std: "docker" "start" "-a" "8354fa4ea5937f6b47a7e2ce675876ffe3a5082b17df95116997e5e863aefd95", kill_on_drop: false }`
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[INFO] [stderr]     Checking cyberdrop-dl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `parse_args`
[INFO] [stdout]  --> src/arg.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn parse_args() -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_from_file`
[INFO] [stdout]   --> src/arg.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn read_from_file(fname: &String) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     tokio::join!(job);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_args`
[INFO] [stdout]  --> src/arg.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn parse_args() -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_from_file`
[INFO] [stdout]   --> src/arg.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn read_from_file(fname: &String) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     tokio::join!(job);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `$crate::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.51s
[INFO] running `Command { std: "docker" "inspect" "8354fa4ea5937f6b47a7e2ce675876ffe3a5082b17df95116997e5e863aefd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8354fa4ea5937f6b47a7e2ce675876ffe3a5082b17df95116997e5e863aefd95", kill_on_drop: false }`
[INFO] [stdout] 8354fa4ea5937f6b47a7e2ce675876ffe3a5082b17df95116997e5e863aefd95