[INFO] cloning repository https://github.com/thenasim/rust-from-rust-book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thenasim/rust-from-rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2e5ca0581f4d1eafd6f6923e29464337e51e9f7c [INFO] checking thenasim/rust-from-rust-book against master#5431404b87967c69438ea1e698edbe96505f0798 for pr-119849 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thenasim/rust-from-rust-book on toolchain 5431404b87967c69438ea1e698edbe96505f0798 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thenasim/rust-from-rust-book [INFO] finished tweaking git repo https://github.com/thenasim/rust-from-rust-book [INFO] tweaked toml for git repo https://github.com/thenasim/rust-from-rust-book written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/thenasim/rust-from-rust-book 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" "+5431404b87967c69438ea1e698edbe96505f0798" "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 thenasim/rust-from-rust-book against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thenasim/rust-from-rust-book on toolchain 21bc403d557a2516df70ea80fb19b94177beede5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thenasim/rust-from-rust-book [INFO] finished tweaking git repo https://github.com/thenasim/rust-from-rust-book [INFO] tweaked toml for git repo https://github.com/thenasim/rust-from-rust-book written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/thenasim/rust-from-rust-book 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f7d1757c1c4056a252847ebcb8aaea53a3775ef416de78688aa15b8160939e02 [INFO] running `Command { std: "docker" "start" "-a" "f7d1757c1c4056a252847ebcb8aaea53a3775ef416de78688aa15b8160939e02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f7d1757c1c4056a252847ebcb8aaea53a3775ef416de78688aa15b8160939e02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7d1757c1c4056a252847ebcb8aaea53a3775ef416de78688aa15b8160939e02", kill_on_drop: false }` [INFO] [stdout] f7d1757c1c4056a252847ebcb8aaea53a3775ef416de78688aa15b8160939e02 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c297722b679f4578f33ea334e8832e21cb16653275c7ed8c72fb72eeb0d01463 [INFO] running `Command { std: "docker" "start" "-a" "c297722b679f4578f33ea334e8832e21cb16653275c7ed8c72fb72eeb0d01463", kill_on_drop: false }` [INFO] [stderr] Checking rust-book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `some_number` [INFO] [stdout] --> src/enums.rs:45:7 [INFO] [stdout] | [INFO] [stdout] 45 | let some_number = Some(5); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `absent_number` [INFO] [stdout] --> src/enums.rs:46:7 [INFO] [stdout] | [INFO] [stdout] 46 | let absent_number: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enums.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] 13 | V4((), (), (), ()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 14 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 20 | Write(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/enums.rs:18:3 [INFO] [stdout] | [INFO] [stdout] 17 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 18 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 20 | Write(String), [INFO] [stdout] 21 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_number` [INFO] [stdout] --> src/enums.rs:45:7 [INFO] [stdout] | [INFO] [stdout] 45 | let some_number = Some(5); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `absent_number` [INFO] [stdout] --> src/enums.rs:46:7 [INFO] [stdout] | [INFO] [stdout] 46 | let absent_number: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enums.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] 13 | V4((), (), (), ()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 14 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enums.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 20 | Write(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/enums.rs:18:3 [INFO] [stdout] | [INFO] [stdout] 17 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 18 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 20 | Write(String), [INFO] [stdout] 21 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "c297722b679f4578f33ea334e8832e21cb16653275c7ed8c72fb72eeb0d01463", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c297722b679f4578f33ea334e8832e21cb16653275c7ed8c72fb72eeb0d01463", kill_on_drop: false }` [INFO] [stdout] c297722b679f4578f33ea334e8832e21cb16653275c7ed8c72fb72eeb0d01463