[INFO] fetching crate ttrack 0.1.0...
[INFO] checking ttrack-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ttrack 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ttrack 0.1.0
[INFO] finished tweaking crates.io crate ttrack 0.1.0
[INFO] tweaked toml for crates.io crate ttrack 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ttrack 0.1.0 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 crates.io crate ttrack 0.1.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a29ddd89edd27c812096481d07da5a735b59da2530e3bd82735392ba03bbf32c
[INFO] running `Command { std: "docker" "start" "-a" "a29ddd89edd27c812096481d07da5a735b59da2530e3bd82735392ba03bbf32c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a29ddd89edd27c812096481d07da5a735b59da2530e3bd82735392ba03bbf32c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29ddd89edd27c812096481d07da5a735b59da2530e3bd82735392ba03bbf32c", kill_on_drop: false }`
[INFO] [stdout] a29ddd89edd27c812096481d07da5a735b59da2530e3bd82735392ba03bbf32c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ea7209b26dac174b3169c9844318d251bb958eb33f559ee9d32a5295bc9e3f20
[INFO] running `Command { std: "docker" "start" "-a" "ea7209b26dac174b3169c9844318d251bb958eb33f559ee9d32a5295bc9e3f20", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking ttrack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/core/types.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Error {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 31 |   pub id: String,
[INFO] [stdout]    |       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are 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 `id` is never read
[INFO] [stdout]   --> src/core/types.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Error {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 31 |   pub id: String,
[INFO] [stdout]    |       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Activity tags.
[INFO] [stdout] 11 | |     /// You can supply multiple values for this flag
[INFO] [stdout] 12 | |     #[structopt(short = "t", long = "tag")]
[INFO] [stdout] 13 | |     tags: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// Activity name
[INFO] [stdout] 16 | |     #[structopt(name = "ACTIVITY_NAME")]
[INFO] [stdout] 17 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     /// Tags to be added.
[INFO] [stdout] 26 | |     /// You can supply multiple values for this tag
[INFO] [stdout] 27 | |     #[structopt(short="a", long)]
[INFO] [stdout] 28 | |     tags_to_add: Vec<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Tags to be removed.
[INFO] [stdout] 31 | |     /// You can supply multiple values for this tag
[INFO] [stdout] 32 | |     #[structopt(short="d", long)]
[INFO] [stdout] 33 | |     tags_to_del: Vec<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// Edit the activity name
[INFO] [stdout] 36 | |     #[structopt(short, long)]
[INFO] [stdout] 37 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     /// ID of the activity to be changed. e.g. `6aed4521`. You can get IDs from running `history` command. 
[INFO] [stdout] 48 | |     #[structopt(name = "ACTIVITY_ID")]
[INFO] [stdout] 49 | |     activity_id: String
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     /// ID of the activity to be changed. e.g. `6aed4521`. You can get IDs from running `history` command. 
[INFO] [stdout] 55 | |     #[structopt(name = "ACTIVITY_ID")]
[INFO] [stdout] 56 | |     activity_id: String
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Activity tags.
[INFO] [stdout] 11 | |     /// You can supply multiple values for this flag
[INFO] [stdout] 12 | |     #[structopt(short = "t", long = "tag")]
[INFO] [stdout] 13 | |     tags: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// Activity name
[INFO] [stdout] 16 | |     #[structopt(name = "ACTIVITY_NAME")]
[INFO] [stdout] 17 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     /// Tags to be added.
[INFO] [stdout] 26 | |     /// You can supply multiple values for this tag
[INFO] [stdout] 27 | |     #[structopt(short="a", long)]
[INFO] [stdout] 28 | |     tags_to_add: Vec<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Tags to be removed.
[INFO] [stdout] 31 | |     /// You can supply multiple values for this tag
[INFO] [stdout] 32 | |     #[structopt(short="d", long)]
[INFO] [stdout] 33 | |     tags_to_del: Vec<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// Edit the activity name
[INFO] [stdout] 36 | |     #[structopt(short, long)]
[INFO] [stdout] 37 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     /// ID of the activity to be changed. e.g. `6aed4521`. You can get IDs from running `history` command. 
[INFO] [stdout] 48 | |     #[structopt(name = "ACTIVITY_ID")]
[INFO] [stdout] 49 | |     activity_id: String
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/controller/cli.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     /// ID of the activity to be changed. e.g. `6aed4521`. You can get IDs from running `history` command. 
[INFO] [stdout] 55 | |     #[structopt(name = "ACTIVITY_ID")]
[INFO] [stdout] 56 | |     activity_id: String
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ttrack` (bin "ttrack") due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ttrack` (bin "ttrack" test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ea7209b26dac174b3169c9844318d251bb958eb33f559ee9d32a5295bc9e3f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea7209b26dac174b3169c9844318d251bb958eb33f559ee9d32a5295bc9e3f20", kill_on_drop: false }`
[INFO] [stdout] ea7209b26dac174b3169c9844318d251bb958eb33f559ee9d32a5295bc9e3f20
