[INFO] cloning repository https://github.com/study-okazaki/rust-todo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/study-okazaki/rust-todo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-okazaki%2Frust-todo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-okazaki%2Frust-todo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3792d3944d7822bd3a3199f9fcc5d41c95625d95
[INFO] checking study-okazaki/rust-todo against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-okazaki%2Frust-todo" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/study-okazaki/rust-todo
[INFO] finished tweaking git repo https://github.com/study-okazaki/rust-todo
[INFO] tweaked toml for git repo https://github.com/study-okazaki/rust-todo written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/study-okazaki/rust-todo on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/study-okazaki/rust-todo 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8de7e09714eaae20e638e48695216d156c19f683791d673d6282465dbf9f3c0
[INFO] running `Command { std: "docker" "start" "-a" "d8de7e09714eaae20e638e48695216d156c19f683791d673d6282465dbf9f3c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8de7e09714eaae20e638e48695216d156c19f683791d673d6282465dbf9f3c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8de7e09714eaae20e638e48695216d156c19f683791d673d6282465dbf9f3c0", kill_on_drop: false }`
[INFO] [stdout] d8de7e09714eaae20e638e48695216d156c19f683791d673d6282465dbf9f3c0
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feec1ed4406f2a76336e7dd988aa6ff6c1a1f1f63f8d18f4a2011b9c0bd707ca
[INFO] running `Command { std: "docker" "start" "-a" "feec1ed4406f2a76336e7dd988aa6ff6c1a1f1f63f8d18f4a2011b9c0bd707ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rusty-journal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]  --> src/cli.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Add {
[INFO] [stdout]   |     --- field in this variant
[INFO] [stdout] 8 |         #[structopt()]
[INFO] [stdout] 9 |         text: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Action` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/cli.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Done {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 13 |         #[structopt()]
[INFO] [stdout] 14 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Action` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `action` and `journal_file` are never read
[INFO] [stdout]   --> src/cli.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct CommandLineArgs {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 26 |     #[structopt(subcommand)]
[INFO] [stdout] 27 |     pub action: Action,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub journal_file: Option<PathBuf>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CommandLineArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/cli.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | /         #[structopt()]
[INFO] [stdout] 9 | |         text: String,
[INFO] [stdout]   | |____________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-journal` (bin "rusty-journal" test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `text` is never read
[INFO] [stdout]  --> src/cli.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Add {
[INFO] [stdout]   |     --- field in this variant
[INFO] [stdout] 8 |         #[structopt()]
[INFO] [stdout] 9 |         text: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Action` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/cli.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Done {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 13 |         #[structopt()]
[INFO] [stdout] 14 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Action` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `action` and `journal_file` are never read
[INFO] [stdout]   --> src/cli.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct CommandLineArgs {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 26 |     #[structopt(subcommand)]
[INFO] [stdout] 27 |     pub action: Action,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub journal_file: Option<PathBuf>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CommandLineArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/cli.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | /         #[structopt()]
[INFO] [stdout] 9 | |         text: String,
[INFO] [stdout]   | |____________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-journal` (bin "rusty-journal") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "feec1ed4406f2a76336e7dd988aa6ff6c1a1f1f63f8d18f4a2011b9c0bd707ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feec1ed4406f2a76336e7dd988aa6ff6c1a1f1f63f8d18f4a2011b9c0bd707ca", kill_on_drop: false }`
[INFO] [stdout] feec1ed4406f2a76336e7dd988aa6ff6c1a1f1f63f8d18f4a2011b9c0bd707ca