[INFO] cloning repository https://github.com/kdnk/rust_introduction [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdnk/rust_introduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnk%2Frust_introduction", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnk%2Frust_introduction'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4a644f9533c899940a70df93d978e23509f90120 [INFO] checking kdnk/rust_introduction against master#561b5dea1e7e5c21f0fb550ca579229ceb878297 for pr-124661 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnk%2Frust_introduction" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kdnk/rust_introduction on toolchain 561b5dea1e7e5c21f0fb550ca579229ceb878297 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+561b5dea1e7e5c21f0fb550ca579229ceb878297" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kdnk/rust_introduction [INFO] finished tweaking git repo https://github.com/kdnk/rust_introduction [INFO] tweaked toml for git repo https://github.com/kdnk/rust_introduction written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kdnk/rust_introduction 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" "+561b5dea1e7e5c21f0fb550ca579229ceb878297" "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 [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 kdnk/rust_introduction against try#8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8 for pr-124661 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnk%2Frust_introduction" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kdnk/rust_introduction on toolchain 8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kdnk/rust_introduction [INFO] finished tweaking git repo https://github.com/kdnk/rust_introduction [INFO] tweaked toml for git repo https://github.com/kdnk/rust_introduction written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kdnk/rust_introduction 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" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5d3159f5012239f1679a7d97b60ce2e21998e9f310e08e7b3e247c551ed28965 [INFO] running `Command { std: "docker" "start" "-a" "5d3159f5012239f1679a7d97b60ce2e21998e9f310e08e7b3e247c551ed28965", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d3159f5012239f1679a7d97b60ce2e21998e9f310e08e7b3e247c551ed28965", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d3159f5012239f1679a7d97b60ce2e21998e9f310e08e7b3e247c551ed28965", kill_on_drop: false }` [INFO] [stdout] 5d3159f5012239f1679a7d97b60ce2e21998e9f310e08e7b3e247c551ed28965 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+8348c7b12e5a2c6b3311d00662c71e8ceda0a1c8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e655624108f230573afdcdb960e35242e18f918a4309e009c72a3e32bfd656fb [INFO] running `Command { std: "docker" "start" "-a" "e655624108f230573afdcdb960e35242e18f918a4309e009c72a3e32bfd656fb", kill_on_drop: false }` [INFO] [stderr] Checking rust_introduction v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: couldn't read src/07_ownership/02_value_scope.rs: No such file or directory (os error 2) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_introduction` (bin "value_scope") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `add0` is never used [INFO] [stdout] --> src/05_user_defined_types/04_result.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn add0(s0: &str, s1: &str) -> Result { [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] warning: unused variable: `data` [INFO] [stdout] --> src/08_trait/02_trait_generics.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let data = Box::init("foo"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/08_trait/02_trait_generics.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let data = Box::::init(0.1); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/08_trait/02_trait_generics.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let data: Box = Init::init(0.1); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one_u32` [INFO] [stdout] --> src/08_trait/02_trait_generics.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let one_u32: u32 = 1.cast(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_one_u32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `one_u32` [INFO] [stdout] --> src/08_trait/02_trait_generics.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let one_u32: u64 = 1.cast(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_one_u32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/05_user_defined_types/02_string.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut s3 = "ストロベリー".to_owned(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1` [INFO] [stdout] --> src/05_user_defined_types/01_main_types.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let v1 = vec![false, true, false]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v4` [INFO] [stdout] --> src/05_user_defined_types/01_main_types.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let v4 = vec![vec!['a', 'b', 'c'], vec!['d']]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read src/07_ownership/04_borrow.rs: No such file or directory (os error 2) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Polygon` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Polygon { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Triangle` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Triangle(Vertex, Vertex, Vertex); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Vertex` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct Vertex(i32, i32); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UniqueValue` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct UniqueValue; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Polygon` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Polygon { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Triangle` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Triangle(Vertex, Vertex, Vertex); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Vertex` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct Vertex(i32, i32); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UniqueValue` is never constructed [INFO] [stdout] --> src/05_user_defined_types/06_struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct UniqueValue; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_introduction` (bin "borrow" test) due to 2 previous errors [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read src/07_ownership/01_value_ownership.rs: No such file or directory (os error 2) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_introduction` (bin "value_ownership") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e655624108f230573afdcdb960e35242e18f918a4309e009c72a3e32bfd656fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e655624108f230573afdcdb960e35242e18f918a4309e009c72a3e32bfd656fb", kill_on_drop: false }` [INFO] [stdout] e655624108f230573afdcdb960e35242e18f918a4309e009c72a3e32bfd656fb