[INFO] fetching crate image-watcher 0.0.23...
[INFO] checking image-watcher-0.0.23 against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] extracting crate image-watcher 0.0.23 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate image-watcher 0.0.23 on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate image-watcher 0.0.23
[INFO] finished tweaking crates.io crate image-watcher 0.0.23
[INFO] tweaked toml for crates.io crate image-watcher 0.0.23 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term_size v0.3.2
[INFO] [stderr]   Downloaded set-error v1.0.1
[INFO] [stderr]   Downloaded file-watcher v0.0.18
[INFO] [stderr]   Downloaded read_input v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 953a61d955837c69b276368ac217d4d8ab9ab56ea513fe7a3f99008790622512
[INFO] running `Command { std: "docker" "start" "-a" "953a61d955837c69b276368ac217d4d8ab9ab56ea513fe7a3f99008790622512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "953a61d955837c69b276368ac217d4d8ab9ab56ea513fe7a3f99008790622512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953a61d955837c69b276368ac217d4d8ab9ab56ea513fe7a3f99008790622512", kill_on_drop: false }`
[INFO] [stdout] 953a61d955837c69b276368ac217d4d8ab9ab56ea513fe7a3f99008790622512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b29f098109da9c10da24eb8405ef1b1b96f9cc5bc6163b10dfd15e9d71954aa
[INFO] running `Command { std: "docker" "start" "-a" "3b29f098109da9c10da24eb8405ef1b1b96f9cc5bc6163b10dfd15e9d71954aa", kill_on_drop: false }`
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking set-error v1.0.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking read_input v0.8.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking file-watcher v0.0.18
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking image-watcher v0.0.23 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{self, ArgMatches};
[INFO] [stdout]   |            ^^^^ the item `clap` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{self, ArgMatches};
[INFO] [stdout]   |            ^^^^ the item `clap` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/parse.rs:5:54
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::TryFrom, fmt, fs::File, io::prelude::*, iter::Iterator, str::FromStr, string::ToString,
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/parse.rs:5:54
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::TryFrom, fmt, fs::File, io::prelude::*, iter::Iterator, str::FromStr, string::ToString,
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> src/parse.rs:5:84
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::TryFrom, fmt, fs::File, io::prelude::*, iter::Iterator, str::FromStr, string::ToString,
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> src/parse.rs:5:84
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::TryFrom, fmt, fs::File, io::prelude::*, iter::Iterator, str::FromStr, string::ToString,
[INFO] [stdout]   |                                                                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{self, App, Arg};
[INFO] [stdout]    |            ^^^^ the item `clap` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{self, App, Arg};
[INFO] [stdout]    |            ^^^^ the item `clap` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     iter::{repeat, Iterator},
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]   --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     iter::{repeat, Iterator},
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]   --> /rustc/8f359beca4e58bc3ae795a666301a8f47023044c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileWatched` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct FileWatched {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileWatched` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileWatched` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct FileWatched {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileWatched` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "3b29f098109da9c10da24eb8405ef1b1b96f9cc5bc6163b10dfd15e9d71954aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b29f098109da9c10da24eb8405ef1b1b96f9cc5bc6163b10dfd15e9d71954aa", kill_on_drop: false }`
[INFO] [stdout] 3b29f098109da9c10da24eb8405ef1b1b96f9cc5bc6163b10dfd15e9d71954aa