[INFO] cloning repository https://github.com/tcrammond/egghead-rust-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tcrammond/egghead-rust-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcrammond%2Fegghead-rust-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcrammond%2Fegghead-rust-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3947fe1c88bb77dc24606908e7c64b608e5c159
[INFO] building tcrammond/egghead-rust-cli against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcrammond%2Fegghead-rust-cli" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcrammond/egghead-rust-cli 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/tcrammond/egghead-rust-cli
[INFO] finished tweaking git repo https://github.com/tcrammond/egghead-rust-cli
[INFO] tweaked toml for git repo https://github.com/tcrammond/egghead-rust-cli written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tcrammond/egghead-rust-cli 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
[INFO] [stderr]     Updating crates.io index
[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 tcrammond/egghead-rust-cli against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcrammond%2Fegghead-rust-cli" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcrammond/egghead-rust-cli 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/tcrammond/egghead-rust-cli
[INFO] finished tweaking git repo https://github.com/tcrammond/egghead-rust-cli
[INFO] tweaked toml for git repo https://github.com/tcrammond/egghead-rust-cli written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tcrammond/egghead-rust-cli 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] [stderr]   Downloaded rprompt v1.0.5
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded assert_fs v1.0.7
[INFO] [stderr]   Downloaded eyre v0.6.6
[INFO] [stderr]   Downloaded owo-colors v3.2.0
[INFO] [stderr]   Downloaded edit v0.1.3
[INFO] [stderr]   Downloaded predicates v2.1.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.7
[INFO] [stderr]   Downloaded libc v0.2.123
[INFO] [stderr]   Downloaded color-eyre v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 29d5c0b6ed37f9014d449e12f89cde82083b36d6bd49bd10fb47d141ea29d7f1
[INFO] running `Command { std: "docker" "start" "-a" "29d5c0b6ed37f9014d449e12f89cde82083b36d6bd49bd10fb47d141ea29d7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29d5c0b6ed37f9014d449e12f89cde82083b36d6bd49bd10fb47d141ea29d7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d5c0b6ed37f9014d449e12f89cde82083b36d6bd49bd10fb47d141ea29d7f1", kill_on_drop: false }`
[INFO] [stdout] 29d5c0b6ed37f9014d449e12f89cde82083b36d6bd49bd10fb47d141ea29d7f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 589df422d928f83779f4b2b7550237b437f587aca199f4cce68e6c6d7845de78
[INFO] running `Command { std: "docker" "start" "-a" "589df422d928f83779f4b2b7550237b437f587aca199f4cce68e6c6d7845de78", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling tracing-subscriber v0.3.7
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling eyre v0.6.6
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling predicates-core v1.0.3
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling tracing-error v0.2.0
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling owo-colors v3.2.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling termtree v0.2.4
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling predicates v2.1.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling predicates-tree v1.0.5
[INFO] [stderr]    Compiling color-spantrace v0.2.0
[INFO] [stderr]    Compiling globwalk v0.8.1
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling which v4.2.5
[INFO] [stderr]    Compiling deunicode v0.4.3
[INFO] [stderr]    Compiling edit v0.1.3
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling directories v4.0.1
[INFO] [stderr]    Compiling assert_fs v1.0.7
[INFO] [stderr]    Compiling rprompt v1.0.5
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling color-eyre v0.6.0
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling digital-garden v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fs::rename(&filepath, &dest_path);
[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] 58 |             let _ = fs::rename(&filepath, &dest_path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.70s
[INFO] running `Command { std: "docker" "inspect" "589df422d928f83779f4b2b7550237b437f587aca199f4cce68e6c6d7845de78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "589df422d928f83779f4b2b7550237b437f587aca199f4cce68e6c6d7845de78", kill_on_drop: false }`
[INFO] [stdout] 589df422d928f83779f4b2b7550237b437f587aca199f4cce68e6c6d7845de78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3ebe0f5b50aa1b721e3c16eb7b9cfb2db471a035b6f1a9dbfecd080d8e01a86e
[INFO] running `Command { std: "docker" "start" "-a" "3ebe0f5b50aa1b721e3c16eb7b9cfb2db471a035b6f1a9dbfecd080d8e01a86e", kill_on_drop: false }`
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fs::rename(&filepath, &dest_path);
[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] 58 |             let _ = fs::rename(&filepath, &dest_path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling assert_cmd v2.0.4
[INFO] [stderr]    Compiling digital-garden v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             fs::rename(&filepath, &dest_path);
[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] 58 |             let _ = fs::rename(&filepath, &dest_path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "3ebe0f5b50aa1b721e3c16eb7b9cfb2db471a035b6f1a9dbfecd080d8e01a86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ebe0f5b50aa1b721e3c16eb7b9cfb2db471a035b6f1a9dbfecd080d8e01a86e", kill_on_drop: false }`
[INFO] [stdout] 3ebe0f5b50aa1b721e3c16eb7b9cfb2db471a035b6f1a9dbfecd080d8e01a86e