[INFO] cloning repository https://github.com/pulkitgangwar/rust-media-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pulkitgangwar/rust-media-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulkitgangwar%2Frust-media-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulkitgangwar%2Frust-media-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2411fe083eb36459c22296eb366fe8be32d1fb59
[INFO] checking pulkitgangwar/rust-media-example against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulkitgangwar%2Frust-media-example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pulkitgangwar/rust-media-example
[INFO] finished tweaking git repo https://github.com/pulkitgangwar/rust-media-example
[INFO] tweaked toml for git repo https://github.com/pulkitgangwar/rust-media-example written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pulkitgangwar/rust-media-example on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pulkitgangwar/rust-media-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking pulkitgangwar/rust-media-example against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulkitgangwar%2Frust-media-example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pulkitgangwar/rust-media-example
[INFO] finished tweaking git repo https://github.com/pulkitgangwar/rust-media-example
[INFO] tweaked toml for git repo https://github.com/pulkitgangwar/rust-media-example written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pulkitgangwar/rust-media-example on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pulkitgangwar/rust-media-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfacc2780ee9eacde8d31967af246a5f9bf5ef2850acca84fd179ff61e89fa7d
[INFO] running `Command { std: "docker" "start" "-a" "dfacc2780ee9eacde8d31967af246a5f9bf5ef2850acca84fd179ff61e89fa7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfacc2780ee9eacde8d31967af246a5f9bf5ef2850acca84fd179ff61e89fa7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfacc2780ee9eacde8d31967af246a5f9bf5ef2850acca84fd179ff61e89fa7d", kill_on_drop: false }`
[INFO] [stdout] dfacc2780ee9eacde8d31967af246a5f9bf5ef2850acca84fd179ff61e89fa7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05ec6840c236ddb98cd24d041a4468ff7f0ee4310d206ad90d9dae50bba4e8ee
[INFO] running `Command { std: "docker" "start" "-a" "05ec6840c236ddb98cd24d041a4468ff7f0ee4310d206ad90d9dae50bba4e8ee", kill_on_drop: false }`
[INFO] [stderr]     Checking media v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `title` and `author` are never read
[INFO] [stdout]  --> src/content/media.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Book { title: String, author: String },
[INFO] [stdout]   |     ----   ^^^^^          ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Media` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Movie`, `Audiobook`, `Podcast`, and `Placeholder` are never constructed
[INFO] [stdout]  --> src/content/media.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Media {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 3 |     Book { title: String, author: String },
[INFO] [stdout] 4 |     Movie { title: String, director: String },
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     Audiobook { title: String },
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     Podcast(u32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Placeholder,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Media` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `description` is never used
[INFO] [stdout]   --> src/content/media.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Media {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 11 |     pub fn description(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `title` and `author` are never read
[INFO] [stdout]  --> src/content/media.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Book { title: String, author: String },
[INFO] [stdout]   |     ----   ^^^^^          ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Media` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Movie`, `Audiobook`, `Podcast`, and `Placeholder` are never constructed
[INFO] [stdout]  --> src/content/media.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Media {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 3 |     Book { title: String, author: String },
[INFO] [stdout] 4 |     Movie { title: String, director: String },
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     Audiobook { title: String },
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     Podcast(u32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     Placeholder,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Media` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `description` is never used
[INFO] [stdout]   --> src/content/media.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Media {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 11 |     pub fn description(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "05ec6840c236ddb98cd24d041a4468ff7f0ee4310d206ad90d9dae50bba4e8ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ec6840c236ddb98cd24d041a4468ff7f0ee4310d206ad90d9dae50bba4e8ee", kill_on_drop: false }`
[INFO] [stdout] 05ec6840c236ddb98cd24d041a4468ff7f0ee4310d206ad90d9dae50bba4e8ee