[INFO] cloning repository https://github.com/Thodin/custom-errors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Thodin/custom-errors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThodin%2Fcustom-errors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThodin%2Fcustom-errors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6ff7c6548c896cfc9d26240b6be70fcf0e97e61
[INFO] checking Thodin/custom-errors against try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThodin%2Fcustom-errors" "/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/Thodin/custom-errors on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Thodin/custom-errors
[INFO] finished tweaking git repo https://github.com/Thodin/custom-errors
[INFO] tweaked toml for git repo https://github.com/Thodin/custom-errors written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Thodin/custom-errors 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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "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 Thodin/custom-errors against try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThodin%2Fcustom-errors" "/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/Thodin/custom-errors on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Thodin/custom-errors
[INFO] finished tweaking git repo https://github.com/Thodin/custom-errors
[INFO] tweaked toml for git repo https://github.com/Thodin/custom-errors written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Thodin/custom-errors 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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "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-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 194d59f797f25d3ac8f0ff7aa395ea275e18d3b8c0384ca08a801c2281adbd57
[INFO] running `Command { std: "docker" "start" "-a" "194d59f797f25d3ac8f0ff7aa395ea275e18d3b8c0384ca08a801c2281adbd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "194d59f797f25d3ac8f0ff7aa395ea275e18d3b8c0384ca08a801c2281adbd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194d59f797f25d3ac8f0ff7aa395ea275e18d3b8c0384ca08a801c2281adbd57", kill_on_drop: false }`
[INFO] [stdout] 194d59f797f25d3ac8f0ff7aa395ea275e18d3b8c0384ca08a801c2281adbd57
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d8a71a3a77a5f9e729af6683243acf1c80248a1fc0f291e7f2f8b26af28400
[INFO] running `Command { std: "docker" "start" "-a" "44d8a71a3a77a5f9e729af6683243acf1c80248a1fc0f291e7f2f8b26af28400", kill_on_drop: false }`
[INFO] [stderr]     Checking custom-errors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `header` and `data` are never read
[INFO] [stdout]   --> src/csvreader.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CsvData<T: Copy + Default + FromStr> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 12 |     pub header: Vec<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 13 |     pub data: Vec<Vec<T>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `data` are never read
[INFO] [stdout]   --> src/csvreader.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CsvData<T: Copy + Default + FromStr> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 12 |     pub header: Vec<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 13 |     pub data: Vec<Vec<T>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `line_num` and `num_entries` are never read
[INFO] [stdout]   --> src/csvreader.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct CsvLineLen {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 18 |     pub line_num: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 19 |     pub num_entries: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvLineLen` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     CouldNotOpenFile(io::Error),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 25 -     CouldNotOpenFile(io::Error),
[INFO] [stdout] 25 +     CouldNotOpenFile(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     CouldNotParseLine(Box<dyn Error>),
[INFO] [stdout]    |     ----------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 26 -     CouldNotParseLine(Box<dyn Error>),
[INFO] [stdout] 26 +     CouldNotParseLine(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |     CouldNotParseValue(String),
[INFO] [stdout]    |     ------------------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 28 -     CouldNotParseValue(String),
[INFO] [stdout] 28 +     CouldNotParseValue(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |     LineTooShort(CsvLineLen),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 29 -     LineTooShort(CsvLineLen),
[INFO] [stdout] 29 +     LineTooShort(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |     LineTooLong(CsvLineLen),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 30 -     LineTooLong(CsvLineLen),
[INFO] [stdout] 30 +     LineTooLong(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `line_num` and `num_entries` are never read
[INFO] [stdout]   --> src/csvreader.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct CsvLineLen {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 18 |     pub line_num: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 19 |     pub num_entries: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvLineLen` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     CouldNotOpenFile(io::Error),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 25 -     CouldNotOpenFile(io::Error),
[INFO] [stdout] 25 +     CouldNotOpenFile(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |     CouldNotParseLine(Box<dyn Error>),
[INFO] [stdout]    |     ----------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 26 -     CouldNotParseLine(Box<dyn Error>),
[INFO] [stdout] 26 +     CouldNotParseLine(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |     CouldNotParseValue(String),
[INFO] [stdout]    |     ------------------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 28 -     CouldNotParseValue(String),
[INFO] [stdout] 28 +     CouldNotParseValue(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |     LineTooShort(CsvLineLen),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 29 -     LineTooShort(CsvLineLen),
[INFO] [stdout] 29 +     LineTooShort(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/csvreader.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |     LineTooLong(CsvLineLen),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CsvError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 30 -     LineTooLong(CsvLineLen),
[INFO] [stdout] 30 +     LineTooLong(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "44d8a71a3a77a5f9e729af6683243acf1c80248a1fc0f291e7f2f8b26af28400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d8a71a3a77a5f9e729af6683243acf1c80248a1fc0f291e7f2f8b26af28400", kill_on_drop: false }`
[INFO] [stdout] 44d8a71a3a77a5f9e729af6683243acf1c80248a1fc0f291e7f2f8b26af28400
