[INFO] fetching crate comtrade 0.2.1...
[INFO] testing comtrade-0.2.1 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate comtrade 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate comtrade 0.2.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comtrade 0.2.1
[INFO] finished tweaking crates.io crate comtrade 0.2.1
[INFO] tweaked toml for crates.io crate comtrade 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate comtrade 0.2.1 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0418c4070320182487a8ff3427064921dd576366e822ab707a36a784322687bf
[INFO] running `Command { std: "docker" "start" "-a" "0418c4070320182487a8ff3427064921dd576366e822ab707a36a784322687bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0418c4070320182487a8ff3427064921dd576366e822ab707a36a784322687bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0418c4070320182487a8ff3427064921dd576366e822ab707a36a784322687bf", kill_on_drop: false }`
[INFO] [stdout] 0418c4070320182487a8ff3427064921dd576366e822ab707a36a784322687bf
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20069b43b135bc763d89d961117a58b655b070d8083e20375b47fc35905bfdbd
[INFO] running `Command { std: "docker" "start" "-a" "20069b43b135bc763d89d961117a58b655b070d8083e20375b47fc35905bfdbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling comtrade v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `data_size` is assigned to, but never used
[INFO] [stdout]    --> src/parser.rs:340:17
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let mut data_size: Option<usize> = None;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_data_size` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_size` is never read
[INFO] [stdout]    --> src/parser.rs:368:21
[INFO] [stdout]     |
[INFO] [stdout] 368 |                     data_size = Some(data_size_token.as_str().to_string().parse::<usize>().or(
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |         let mut line = "";
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let mut line_values: Vec<&str> = vec![];
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:764:13
[INFO] [stdout]     |
[INFO] [stdout] 764 |             line = lines.next().ok_or(early_end_err.clone())?;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:771:9
[INFO] [stdout]     |
[INFO] [stdout] 771 |         line_values = line.split(CFG_SEPARATOR).collect();
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_number` is never read
[INFO] [stdout]    --> src/parser.rs:849:9
[INFO] [stdout]     |
[INFO] [stdout] 849 |         line_number += 1;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:875:13
[INFO] [stdout]     |
[INFO] [stdout] 875 |         let mut analog_channels = &mut self.builder.analog_channels.as_mut().unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:876:13
[INFO] [stdout]     |
[INFO] [stdout] 876 |         let mut status_channels = &mut self.builder.status_channels.as_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]   --> src/parser.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ParseError {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 19 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.15s
[INFO] running `Command { std: "docker" "inspect" "20069b43b135bc763d89d961117a58b655b070d8083e20375b47fc35905bfdbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20069b43b135bc763d89d961117a58b655b070d8083e20375b47fc35905bfdbd", kill_on_drop: false }`
[INFO] [stdout] 20069b43b135bc763d89d961117a58b655b070d8083e20375b47fc35905bfdbd
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 592c70797b33fcb48751e736a9a832ab3485aaf512ab9815cea32151545941a2
[INFO] running `Command { std: "docker" "start" "-a" "592c70797b33fcb48751e736a9a832ab3485aaf512ab9815cea32151545941a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling comtrade v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `data_size` is assigned to, but never used
[INFO] [stdout]    --> src/parser.rs:340:17
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let mut data_size: Option<usize> = None;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_data_size` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_size` is never read
[INFO] [stdout]    --> src/parser.rs:368:21
[INFO] [stdout]     |
[INFO] [stdout] 368 |                     data_size = Some(data_size_token.as_str().to_string().parse::<usize>().or(
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |         let mut line = "";
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let mut line_values: Vec<&str> = vec![];
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:764:13
[INFO] [stdout]     |
[INFO] [stdout] 764 |             line = lines.next().ok_or(early_end_err.clone())?;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:771:9
[INFO] [stdout]     |
[INFO] [stdout] 771 |         line_values = line.split(CFG_SEPARATOR).collect();
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_number` is never read
[INFO] [stdout]    --> src/parser.rs:849:9
[INFO] [stdout]     |
[INFO] [stdout] 849 |         line_number += 1;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:875:13
[INFO] [stdout]     |
[INFO] [stdout] 875 |         let mut analog_channels = &mut self.builder.analog_channels.as_mut().unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:876:13
[INFO] [stdout]     |
[INFO] [stdout] 876 |         let mut status_channels = &mut self.builder.status_channels.as_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]   --> src/parser.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ParseError {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 19 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NaiveDateTime`
[INFO] [stdout]  --> tests/integration_tests.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::{FixedOffset, NaiveDate, NaiveDateTime};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `data_size` is assigned to, but never used
[INFO] [stdout]    --> src/parser.rs:340:17
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let mut data_size: Option<usize> = None;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_data_size` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_size` is never read
[INFO] [stdout]    --> src/parser.rs:368:21
[INFO] [stdout]     |
[INFO] [stdout] 368 |                     data_size = Some(data_size_token.as_str().to_string().parse::<usize>().or(
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |         let mut line = "";
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let mut line_values: Vec<&str> = vec![];
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]    --> src/parser.rs:764:13
[INFO] [stdout]     |
[INFO] [stdout] 764 |             line = lines.next().ok_or(early_end_err.clone())?;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_values` is never read
[INFO] [stdout]    --> src/parser.rs:771:9
[INFO] [stdout]     |
[INFO] [stdout] 771 |         line_values = line.split(CFG_SEPARATOR).collect();
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line_number` is never read
[INFO] [stdout]    --> src/parser.rs:849:9
[INFO] [stdout]     |
[INFO] [stdout] 849 |         line_number += 1;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:875:13
[INFO] [stdout]     |
[INFO] [stdout] 875 |         let mut analog_channels = &mut self.builder.analog_channels.as_mut().unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:876:13
[INFO] [stdout]     |
[INFO] [stdout] 876 |         let mut status_channels = &mut self.builder.status_channels.as_mut().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]   --> src/parser.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ParseError {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 19 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "592c70797b33fcb48751e736a9a832ab3485aaf512ab9815cea32151545941a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592c70797b33fcb48751e736a9a832ab3485aaf512ab9815cea32151545941a2", kill_on_drop: false }`
[INFO] [stdout] 592c70797b33fcb48751e736a9a832ab3485aaf512ab9815cea32151545941a2
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 723dd037e9031200b9d195f28eca63496e365c3cb52c05b93fbf066345ff064c
[INFO] running `Command { std: "docker" "start" "-a" "723dd037e9031200b9d195f28eca63496e365c3cb52c05b93fbf066345ff064c", kill_on_drop: false }`
[INFO] [stderr] warning: variable `data_size` is assigned to, but never used
[INFO] [stderr]    --> src/parser.rs:340:17
[INFO] [stderr]     |
[INFO] [stderr] 340 |         let mut data_size: Option<usize> = None;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_data_size` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `data_size` is never read
[INFO] [stderr]    --> src/parser.rs:368:21
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     data_size = Some(data_size_token.as_str().to_string().parse::<usize>().or(
[INFO] [stderr]     |                     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line` is never read
[INFO] [stderr]    --> src/parser.rs:418:17
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let mut line = "";
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line_values` is never read
[INFO] [stderr]    --> src/parser.rs:419:17
[INFO] [stderr]     |
[INFO] [stderr] 419 |         let mut line_values: Vec<&str> = vec![];
[INFO] [stderr]     |                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line` is never read
[INFO] [stderr]    --> src/parser.rs:764:13
[INFO] [stderr]     |
[INFO] [stderr] 764 |             line = lines.next().ok_or(early_end_err.clone())?;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line_values` is never read
[INFO] [stderr]    --> src/parser.rs:771:9
[INFO] [stderr]     |
[INFO] [stderr] 771 |         line_values = line.split(CFG_SEPARATOR).collect();
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `line_number` is never read
[INFO] [stderr]    --> src/parser.rs:849:9
[INFO] [stderr]     |
[INFO] [stderr] 849 |         line_number += 1;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:875:13
[INFO] [stderr]     |
[INFO] [stderr] 875 |         let mut analog_channels = &mut self.builder.analog_channels.as_mut().unwrap();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:876:13
[INFO] [stderr]     |
[INFO] [stderr] 876 |         let mut status_channels = &mut self.builder.status_channels.as_mut().unwrap();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `message` is never read
[INFO] [stderr]   --> src/parser.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct ParseError {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 19 |     message: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `comtrade` (lib) generated 10 warnings (run `cargo fix --lib -p comtrade` to apply 2 suggestions)
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: `comtrade` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `NaiveDateTime`
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]  --> tests/integration_tests.rs:5:38
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 5 | use chrono::{FixedOffset, NaiveDate, NaiveDateTime};
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |                                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: `comtrade` (test "integration_tests") generated 1 warning (run `cargo fix --test "integration_tests"` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/comtrade-4daf896514ae9671)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/comtrade-25cb68fd5add1d1c)
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-5658db95e279d512)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test it_correctly_parses_sample_2013_files_with_ascii_data ... ok
[INFO] [stdout] test it_correctly_parses_sample_2013_files_with_ascii_data_using_utf8 ... ok
[INFO] [stdout] test it_correctly_parses_sample_2013_files_with_binary16_data ... ok
[INFO] [stdout] test it_correctly_parses_sample_1999_files_with_binary16_data ... ok
[INFO] [stdout] test it_correctly_parses_sample_2013_combined_file_with_ascii_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests comtrade
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - TimeQuality::ClockUnlocked (line 113) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "723dd037e9031200b9d195f28eca63496e365c3cb52c05b93fbf066345ff064c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723dd037e9031200b9d195f28eca63496e365c3cb52c05b93fbf066345ff064c", kill_on_drop: false }`
[INFO] [stdout] 723dd037e9031200b9d195f28eca63496e365c3cb52c05b93fbf066345ff064c
