[INFO] cloning repository https://github.com/qinyuhang/rust_coreutil [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qinyuhang/rust_coreutil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinyuhang%2Frust_coreutil", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinyuhang%2Frust_coreutil'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4519ea4bf79c8cf6c6e3876c38e77b24a1d68e0 [INFO] building qinyuhang/rust_coreutil against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinyuhang%2Frust_coreutil" "/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/qinyuhang/rust_coreutil on toolchain d59f06fc64844ec2073e5e888f7470989ef25ff9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] finished tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] tweaked toml for git repo https://github.com/qinyuhang/rust_coreutil written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/qinyuhang/rust_coreutil 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" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "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] building qinyuhang/rust_coreutil against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinyuhang%2Frust_coreutil" "/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/qinyuhang/rust_coreutil on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] finished tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] tweaked toml for git repo https://github.com/qinyuhang/rust_coreutil written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/qinyuhang/rust_coreutil 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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] building qinyuhang/rust_coreutil against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinyuhang%2Frust_coreutil" "/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/qinyuhang/rust_coreutil on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] finished tweaking git repo https://github.com/qinyuhang/rust_coreutil [INFO] tweaked toml for git repo https://github.com/qinyuhang/rust_coreutil written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/qinyuhang/rust_coreutil 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef9745a6fc26cf41562b569be1c7672f31ab882844eb8736e823c1565da81e48 [INFO] running `Command { std: "docker" "start" "-a" "ef9745a6fc26cf41562b569be1c7672f31ab882844eb8736e823c1565da81e48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef9745a6fc26cf41562b569be1c7672f31ab882844eb8736e823c1565da81e48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef9745a6fc26cf41562b569be1c7672f31ab882844eb8736e823c1565da81e48", kill_on_drop: false }` [INFO] [stdout] ef9745a6fc26cf41562b569be1c7672f31ab882844eb8736e823c1565da81e48 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fb6ec14dc3da1e2b92e65778ed2a60f4805d155d2abcddd1086163a0a419e979 [INFO] running `Command { std: "docker" "start" "-a" "fb6ec14dc3da1e2b92e65778ed2a60f4805d155d2abcddd1086163a0a419e979", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling predicates-core v1.0.3 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling termtree v0.2.4 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling itertools v0.10.3 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling predicates-tree v1.0.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling termcolor v1.1.3 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling textwrap v0.15.0 [INFO] [stderr] Compiling quote v1.0.16 [INFO] [stderr] Compiling bstr v0.2.17 [INFO] [stderr] Compiling os_str_bytes v6.0.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates v2.1.1 [INFO] [stderr] Compiling assert_cmd v2.0.4 [INFO] [stderr] Compiling clap_derive v3.1.4 [INFO] [stderr] Compiling clap v3.1.6 [INFO] [stderr] Compiling rust_coreutil v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 75 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.22s [INFO] running `Command { std: "docker" "inspect" "fb6ec14dc3da1e2b92e65778ed2a60f4805d155d2abcddd1086163a0a419e979", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb6ec14dc3da1e2b92e65778ed2a60f4805d155d2abcddd1086163a0a419e979", kill_on_drop: false }` [INFO] [stdout] fb6ec14dc3da1e2b92e65778ed2a60f4805d155d2abcddd1086163a0a419e979 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e1d718b60d12f423e46e6071c6f6d4bcab24d0ed890b1010b2907235836ccf7 [INFO] running `Command { std: "docker" "start" "-a" "7e1d718b60d12f423e46e6071c6f6d4bcab24d0ed890b1010b2907235836ccf7", kill_on_drop: false }` [INFO] [stderr] Compiling rust_coreutil v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 75 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = output.write(format!("{:>4} {}", line_data.1, line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 75 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/uniq.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | let _ = output.write(format!("{}", line_data.0).as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.23s [INFO] running `Command { std: "docker" "inspect" "7e1d718b60d12f423e46e6071c6f6d4bcab24d0ed890b1010b2907235836ccf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e1d718b60d12f423e46e6071c6f6d4bcab24d0ed890b1010b2907235836ccf7", kill_on_drop: false }` [INFO] [stdout] 7e1d718b60d12f423e46e6071c6f6d4bcab24d0ed890b1010b2907235836ccf7