[INFO] cloning repository https://github.com/johnyburd/rust-1001
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnyburd/rust-1001" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnyburd%2Frust-1001", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnyburd%2Frust-1001'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d040b69df6e86079c5e925396c3d80d250e5e5a
[INFO] checking johnyburd/rust-1001 against master#0f442e265c165c0a78633bef98de18517815150c for pr-129073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnyburd%2Frust-1001" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnyburd/rust-1001 on toolchain 0f442e265c165c0a78633bef98de18517815150c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnyburd/rust-1001
[INFO] finished tweaking git repo https://github.com/johnyburd/rust-1001
[INFO] tweaked toml for git repo https://github.com/johnyburd/rust-1001 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/johnyburd/rust-1001 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" "+0f442e265c165c0a78633bef98de18517815150c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking johnyburd/rust-1001 against try#774bd5ba31b89dab12d58c29690ad9f7e5c9f063 for pr-129073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnyburd%2Frust-1001" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnyburd/rust-1001 on toolchain 774bd5ba31b89dab12d58c29690ad9f7e5c9f063
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnyburd/rust-1001
[INFO] finished tweaking git repo https://github.com/johnyburd/rust-1001
[INFO] tweaked toml for git repo https://github.com/johnyburd/rust-1001 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnyburd/rust-1001 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" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.9.10
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49003b12a81b695cc2b440a84afb312ad8eb6a9cbc4c0d0f75986096c9818772
[INFO] running `Command { std: "docker" "start" "-a" "49003b12a81b695cc2b440a84afb312ad8eb6a9cbc4c0d0f75986096c9818772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49003b12a81b695cc2b440a84afb312ad8eb6a9cbc4c0d0f75986096c9818772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49003b12a81b695cc2b440a84afb312ad8eb6a9cbc4c0d0f75986096c9818772", kill_on_drop: false }`
[INFO] [stdout] 49003b12a81b695cc2b440a84afb312ad8eb6a9cbc4c0d0f75986096c9818772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56c66560506abba4b72c35da1e7de2f56fe4fbd67877abe95db3fe4c6e42a619
[INFO] running `Command { std: "docker" "start" "-a" "56c66560506abba4b72c35da1e7de2f56fe4fbd67877abe95db3fe4c6e42a619", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.33
[INFO] [stderr]     Checking thiserror v1.0.33
[INFO] [stderr]     Checking serde_yaml v0.9.10
[INFO] [stderr]     Checking rust-1001 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/errors/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `greeting_file`
[INFO] [stdout]   --> src/errors/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let greeting_file = match greeting_file_result {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prints_and_returns_10` is never used
[INFO] [stdout]  --> src/tests/main.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn prints_and_returns_10(a: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `greeting_file`
[INFO] [stdout]   --> src/errors/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let greeting_file = File::open("hello.txt").expect("Problem opening the file!");
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_panic1` is never used
[INFO] [stdout]   --> src/errors/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn open_panic1() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `options` are never read
[INFO] [stdout]   --> src/generics2/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct SelectBox {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 32 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     options: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bad` is never constructed
[INFO] [stdout]   --> src/derive2/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum State {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 12 |     Good,
[INFO] [stdout] 13 |     Bad(String),
[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] error[E0277]: `UsState` doesn't implement `Debug`
[INFO] [stdout]   --> src/test/main.rs:20:50
[INFO] [stdout]    |
[INFO] [stdout] 20 |             println!("State quarter from {:?}!", state);
[INFO] [stdout]    |                                                  ^^^^^ `UsState` cannot be formatted using `{:?}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `UsState`
[INFO] [stdout]    = note: add `#[derive(Debug)]` to `UsState` or manually `impl Debug for UsState`
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `UsState` with `#[derive(Debug)]`
[INFO] [stdout]    |
[INFO] [stdout] 1  + #[derive(Debug)]
[INFO] [stdout] 2  | enum UsState {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bad` is never constructed
[INFO] [stdout]   --> src/derive2/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum State {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 12 |     Good,
[INFO] [stdout] 13 |     Bad(String),
[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] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-1001` (bin "test" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0601]: `main` function not found in crate `test`
[INFO] [stdout]   --> src/test/main.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/test/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/enums/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Move {
[INFO] [stdout]   |     ---- fields in this variant
[INFO] [stdout] 4 |         x: i32,
[INFO] [stdout]   |         ^
[INFO] [stdout] 5 |         y: i32,
[INFO] [stdout]   |         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/enums/main.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Echo(String),
[INFO] [stdout]   |     ---- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Echo(()),
[INFO] [stdout]   |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/enums/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ChangeColor(u8, u8, u8),
[INFO] [stdout]   |     ----------- ^^  ^^  ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ChangeColor((), (), ()),
[INFO] [stdout]   |                 ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `UsState` doesn't implement `Debug`
[INFO] [stdout]   --> src/test/main.rs:20:50
[INFO] [stdout]    |
[INFO] [stdout] 20 |             println!("State quarter from {:?}!", state);
[INFO] [stdout]    |                                                  ^^^^^ `UsState` cannot be formatted using `{:?}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `UsState`
[INFO] [stdout]    = note: add `#[derive(Debug)]` to `UsState` or manually `impl Debug for UsState`
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider annotating `UsState` with `#[derive(Debug)]`
[INFO] [stdout]    |
[INFO] [stdout] 1  + #[derive(Debug)]
[INFO] [stdout] 2  | enum UsState {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-1001` (bin "test") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "56c66560506abba4b72c35da1e7de2f56fe4fbd67877abe95db3fe4c6e42a619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c66560506abba4b72c35da1e7de2f56fe4fbd67877abe95db3fe4c6e42a619", kill_on_drop: false }`
[INFO] [stdout] 56c66560506abba4b72c35da1e7de2f56fe4fbd67877abe95db3fe4c6e42a619