[INFO] cloning repository https://github.com/zhooda/rusty-iconz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhooda/rusty-iconz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhooda%2Frusty-iconz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhooda%2Frusty-iconz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 27a6f73c88ccfcc3d7a76d4d9f85fecc6a5c30d3
[INFO] checking zhooda/rusty-iconz 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%2Fzhooda%2Frusty-iconz" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zhooda/rusty-iconz
[INFO] finished tweaking git repo https://github.com/zhooda/rusty-iconz
[INFO] tweaked toml for git repo https://github.com/zhooda/rusty-iconz written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zhooda/rusty-iconz 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/zhooda/rusty-iconz 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8b1cc872e23f7209980ab7fe94c382392195e41f3d1a0a2c71555eb1afed0d85
[INFO] running `Command { std: "docker" "start" "-a" "8b1cc872e23f7209980ab7fe94c382392195e41f3d1a0a2c71555eb1afed0d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b1cc872e23f7209980ab7fe94c382392195e41f3d1a0a2c71555eb1afed0d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1cc872e23f7209980ab7fe94c382392195e41f3d1a0a2c71555eb1afed0d85", kill_on_drop: false }`
[INFO] [stdout] 8b1cc872e23f7209980ab7fe94c382392195e41f3d1a0a2c71555eb1afed0d85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f63d18575fd907adba663cd9c6adb25071b6f31f1716163335145ee890ae4f47
[INFO] running `Command { std: "docker" "start" "-a" "f63d18575fd907adba663cd9c6adb25071b6f31f1716163335145ee890ae4f47", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking png v0.16.4
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking iconz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `errmsg` is not used by name
[INFO] [stdout]   --> src/main.rs:30:54
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                    --                                ^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this formatting argument uses named argument `errmsg` by position
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{errmsg} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                     ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `src` is not used by name
[INFO] [stdout]   --> src/main.rs:30:82
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                                     --                                           ^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this formatting argument uses named argument `src` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {src} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `errmsg` is not used by name
[INFO] [stdout]   --> src/main.rs:30:54
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                    --                                ^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this formatting argument uses named argument `errmsg` by position
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{errmsg} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                     ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `src` is not used by name
[INFO] [stdout]   --> src/main.rs:30:82
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[INFO] [stdout]    |                                     --                                           ^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this formatting argument uses named argument `src` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 30 |         eprintln!("{} The file path {src} was invalid", errmsg=errmsg.red().bold(), src=source.clone().blue().underline());
[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:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(StructOpt)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iconz` (bin "iconz" test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(StructOpt)]
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iconz` (bin "iconz") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f63d18575fd907adba663cd9c6adb25071b6f31f1716163335145ee890ae4f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63d18575fd907adba663cd9c6adb25071b6f31f1716163335145ee890ae4f47", kill_on_drop: false }`
[INFO] [stdout] f63d18575fd907adba663cd9c6adb25071b6f31f1716163335145ee890ae4f47
