[INFO] fetching crate photo-captioner 0.1.3...
[INFO] checking photo-captioner-0.1.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate photo-captioner 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate photo-captioner 0.1.3
[INFO] finished tweaking crates.io crate photo-captioner 0.1.3
[INFO] tweaked toml for crates.io crate photo-captioner 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate photo-captioner 0.1.3 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 photo-captioner 0.1.3 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 714490f0c10caa3914867bd5c3da2ce784704637dfe89feb069ea195cd277397
[INFO] running `Command { std: "docker" "start" "-a" "714490f0c10caa3914867bd5c3da2ce784704637dfe89feb069ea195cd277397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "714490f0c10caa3914867bd5c3da2ce784704637dfe89feb069ea195cd277397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "714490f0c10caa3914867bd5c3da2ce784704637dfe89feb069ea195cd277397", kill_on_drop: false }`
[INFO] [stdout] 714490f0c10caa3914867bd5c3da2ce784704637dfe89feb069ea195cd277397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 89be1573485b630419fbc58d18671bd4a625ea55990cecb3e7491eafaf8fd356
[INFO] running `Command { std: "docker" "start" "-a" "89be1573485b630419fbc58d18671bd4a625ea55990cecb3e7491eafaf8fd356", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]     Checking array-macro v1.0.4
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]     Checking enum-map v0.6.1
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wasmer_enumset_derive v0.5.0
[INFO] [stderr]     Checking wasmer_enumset v1.0.1
[INFO] [stderr]     Checking cursive_core v0.2.2
[INFO] [stderr]     Checking cursive v0.16.3
[INFO] [stderr]     Checking photo-captioner v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     /// The type of output, available options: "csv"
[INFO] [stdout] 40 | |     #[structopt(short = "t", long = "output-type", default_value = "csv")]
[INFO] [stdout] 41 | |     output_type: 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/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// The name of the output file (if there is one).
[INFO] [stdout] 44 | |     /// Will be "captions.csv" by default for the "csv" output-type.
[INFO] [stdout] 45 | |     #[structopt(short = "n", long = "output-name")]
[INFO] [stdout] 46 | |     output_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/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// The command used to launch an image viewer
[INFO] [stdout] 53 | |     /// upon editing the caption for an image in order
[INFO] [stdout] 54 | |     /// to view the image who's caption is being edited
[INFO] [stdout] 55 | |     #[structopt(short = "c", long = "view-command")]
[INFO] [stdout] 56 | |     view_command: 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/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     /// The type of output, available options: "csv"
[INFO] [stdout] 40 | |     #[structopt(short = "t", long = "output-type", default_value = "csv")]
[INFO] [stdout] 41 | |     output_type: 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/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// The name of the output file (if there is one).
[INFO] [stdout] 44 | |     /// Will be "captions.csv" by default for the "csv" output-type.
[INFO] [stdout] 45 | |     #[structopt(short = "n", long = "output-name")]
[INFO] [stdout] 46 | |     output_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/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// The command used to launch an image viewer
[INFO] [stdout] 53 | |     /// upon editing the caption for an image in order
[INFO] [stdout] 54 | |     /// to view the image who's caption is being edited
[INFO] [stdout] 55 | |     #[structopt(short = "c", long = "view-command")]
[INFO] [stdout] 56 | |     view_command: 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/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | /     /// The command used to launch an image viewer
[INFO] [stdout] 59 | |     /// upon editing the caption for an image in order
[INFO] [stdout] 60 | |     /// to view the image who's caption is being edited.
[INFO] [stdout] 61 | |     /// Escape dash "-" symbols with a backslash: "\-".
[INFO] [stdout] 62 | |     /// For example: -a "\-\-some" "command"
[INFO] [stdout] 63 | |     #[structopt(short = "a", long = "view-command-args")]
[INFO] [stdout] 64 | |     view_command_args: Option<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/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | /     /// The command used to launch an image viewer
[INFO] [stdout] 59 | |     /// upon editing the caption for an image in order
[INFO] [stdout] 60 | |     /// to view the image who's caption is being edited.
[INFO] [stdout] 61 | |     /// Escape dash "-" symbols with a backslash: "\-".
[INFO] [stdout] 62 | |     /// For example: -a "\-\-some" "command"
[INFO] [stdout] 63 | |     #[structopt(short = "a", long = "view-command-args")]
[INFO] [stdout] 64 | |     view_command_args: Option<Vec<String>>,
[INFO] [stdout]    | |__________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:237:65
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let image_file_name = String::from(record_ref.get_filename().clone());
[INFO] [stdout]     |                                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` 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: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:237:65
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let image_file_name = String::from(record_ref.get_filename().clone());
[INFO] [stdout]     |                                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` 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] [stderr] error: could not compile `photo-captioner` (bin "photo-captioner" test) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `photo-captioner` (bin "photo-captioner") due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "89be1573485b630419fbc58d18671bd4a625ea55990cecb3e7491eafaf8fd356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89be1573485b630419fbc58d18671bd4a625ea55990cecb3e7491eafaf8fd356", kill_on_drop: false }`
[INFO] [stdout] 89be1573485b630419fbc58d18671bd4a625ea55990cecb3e7491eafaf8fd356
