[INFO] cloning repository https://github.com/grahamc/s3-inventory.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grahamc/s3-inventory.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Fs3-inventory.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Fs3-inventory.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ac5c4b9c501492e4d8274d14c6a3a020acf0fdf
[INFO] checking grahamc/s3-inventory.rs against master#bbefc9837f4157cc09ed60e6d7b21e345d582dd9 for pr-114571-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Fs3-inventory.rs" "/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/grahamc/s3-inventory.rs on toolchain bbefc9837f4157cc09ed60e6d7b21e345d582dd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] finished tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] tweaked toml for git repo https://github.com/grahamc/s3-inventory.rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/grahamc/s3-inventory.rs 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" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "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 grahamc/s3-inventory.rs against try#2399cef65c47f346b5fa9df51f48df0acd4a9d85 for pr-114571-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Fs3-inventory.rs" "/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/grahamc/s3-inventory.rs on toolchain 2399cef65c47f346b5fa9df51f48df0acd4a9d85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] finished tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] tweaked toml for git repo https://github.com/grahamc/s3-inventory.rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/grahamc/s3-inventory.rs 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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "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] checking grahamc/s3-inventory.rs against try#2399cef65c47f346b5fa9df51f48df0acd4a9d85 for pr-114571-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahamc%2Fs3-inventory.rs" "/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/grahamc/s3-inventory.rs on toolchain 2399cef65c47f346b5fa9df51f48df0acd4a9d85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] finished tweaking git repo https://github.com/grahamc/s3-inventory.rs
[INFO] tweaked toml for git repo https://github.com/grahamc/s3-inventory.rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/grahamc/s3-inventory.rs 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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30c3523d4e7c6889f108ef7375a83ecc604f0408d3862b6a5bb0a70a14f8639d
[INFO] running `Command { std: "docker" "start" "-a" "30c3523d4e7c6889f108ef7375a83ecc604f0408d3862b6a5bb0a70a14f8639d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30c3523d4e7c6889f108ef7375a83ecc604f0408d3862b6a5bb0a70a14f8639d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c3523d4e7c6889f108ef7375a83ecc604f0408d3862b6a5bb0a70a14f8639d", kill_on_drop: false }`
[INFO] [stdout] 30c3523d4e7c6889f108ef7375a83ecc604f0408d3862b6a5bb0a70a14f8639d
[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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db53424c9f122a74674a7aec1ead35032c687e632320918740f3a9736853a835
[INFO] running `Command { std: "docker" "start" "-a" "db53424c9f122a74674a7aec1ead35032c687e632320918740f3a9736853a835", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking hydra-arch-breakdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `Barrier`
[INFO] [stdout]   --> src/main.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::sync::{Arc, Barrier};
[INFO] [stdout]    |                 ^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Barrier`
[INFO] [stdout]   --> src/main.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::sync::{Arc, Barrier};
[INFO] [stdout]    |                 ^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `loadedDataFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut loadedDataFile: LoadedDataFile<_> = LoadedDataFile::new(&file).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `loaded_data_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             send_sum.send(count);
[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] 84 |             let _ = send_sum.send(count);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         stream.write(format!("recd: {:?}\n", record).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] 92 |         let _ = stream.write(format!("recd: {:?}\n", record).as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/manifest.rs:79:42
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let checksum_path = manifest_path.clone().with_file_name("manifest.checksum");
[INFO] [stdout]    |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `loadedDataFile` should have a snake case name
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut loadedDataFile: LoadedDataFile<_> = LoadedDataFile::new(&file).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `loaded_data_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             send_sum.send(count);
[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] 84 |             let _ = send_sum.send(count);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         stream.write(format!("recd: {:?}\n", record).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] 92 |         let _ = stream.write(format!("recd: {:?}\n", record).as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/manifest.rs:79:42
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let checksum_path = manifest_path.clone().with_file_name("manifest.checksum");
[INFO] [stdout]    |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "db53424c9f122a74674a7aec1ead35032c687e632320918740f3a9736853a835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db53424c9f122a74674a7aec1ead35032c687e632320918740f3a9736853a835", kill_on_drop: false }`
[INFO] [stdout] db53424c9f122a74674a7aec1ead35032c687e632320918740f3a9736853a835