[INFO] fetching crate zipimgzip 0.4.2...
[INFO] building zipimgzip-0.4.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate zipimgzip 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate zipimgzip 0.4.2
[INFO] finished tweaking crates.io crate zipimgzip 0.4.2
[INFO] tweaked toml for crates.io crate zipimgzip 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zipimgzip 0.4.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zipimgzip 0.4.2 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ef029068946c119954deb2d66a6278475ec59700a9f5b83361a0461ee7c8b09
[INFO] running `Command { std: "docker" "start" "-a" "0ef029068946c119954deb2d66a6278475ec59700a9f5b83361a0461ee7c8b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ef029068946c119954deb2d66a6278475ec59700a9f5b83361a0461ee7c8b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef029068946c119954deb2d66a6278475ec59700a9f5b83361a0461ee7c8b09", kill_on_drop: false }`
[INFO] [stdout] 0ef029068946c119954deb2d66a6278475ec59700a9f5b83361a0461ee7c8b09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64944d984dbb675ca9b0823a04aa1bc4f8ca0f6b7556fc5464c0fb850f9c3740
[INFO] running `Command { std: "docker" "start" "-a" "64944d984dbb675ca9b0823a04aa1bc4f8ca0f6b7556fc5464c0fb850f9c3740", kill_on_drop: false }`
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[INFO] [stderr]    Compiling zerocopy v0.7.35
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[INFO] [stderr]    Compiling zstd v0.13.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling ravif v0.11.10
[INFO] [stderr]    Compiling image v0.25.2
[INFO] [stderr]    Compiling zipimgzip v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:328:17
[INFO] [stdout]     |
[INFO] [stdout] 328 |             let start_name: &str;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_start_name` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start_name` is never read
[INFO] [stdout]    --> src/lib.rs:330:28
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 Some(r) => start_name = r,
[INFO] [stdout]     |                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_outpath`
[INFO] [stdout]    --> src/lib.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_outpath`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `res_start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:677:9
[INFO] [stdout]     |
[INFO] [stdout] 677 |     let res_start_name;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_res_start_name` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res_start_name` is never read
[INFO] [stdout]    --> src/lib.rs:680:20
[INFO] [stdout]     |
[INFO] [stdout] 680 |         Some(r) => res_start_name = r,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.02s
[INFO] running `Command { std: "docker" "inspect" "64944d984dbb675ca9b0823a04aa1bc4f8ca0f6b7556fc5464c0fb850f9c3740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64944d984dbb675ca9b0823a04aa1bc4f8ca0f6b7556fc5464c0fb850f9c3740", kill_on_drop: false }`
[INFO] [stdout] 64944d984dbb675ca9b0823a04aa1bc4f8ca0f6b7556fc5464c0fb850f9c3740
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f58740ba50214b50a263b61522077194dadf729ca60fc557b65830f02aac44fe
[INFO] running `Command { std: "docker" "start" "-a" "f58740ba50214b50a263b61522077194dadf729ca60fc557b65830f02aac44fe", kill_on_drop: false }`
[INFO] [stdout] warning: variable `start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:328:17
[INFO] [stdout]     |
[INFO] [stdout] 328 |             let start_name: &str;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_start_name` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start_name` is never read
[INFO] [stdout]    --> src/lib.rs:330:28
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 Some(r) => start_name = r,
[INFO] [stdout]     |                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_outpath`
[INFO] [stdout]    --> src/lib.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_outpath`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zipimgzip v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `res_start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:677:9
[INFO] [stdout]     |
[INFO] [stdout] 677 |     let res_start_name;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_res_start_name` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res_start_name` is never read
[INFO] [stdout]    --> src/lib.rs:680:20
[INFO] [stdout]     |
[INFO] [stdout] 680 |         Some(r) => res_start_name = r,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:328:17
[INFO] [stdout]     |
[INFO] [stdout] 328 |             let start_name: &str;
[INFO] [stdout]     |                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_start_name` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start_name` is never read
[INFO] [stdout]    --> src/lib.rs:330:28
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 Some(r) => start_name = r,
[INFO] [stdout]     |                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_outpath`
[INFO] [stdout]    --> src/lib.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_outpath`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut new_outpath = self.out_names[count_i].clone();
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `res_start_name` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:677:9
[INFO] [stdout]     |
[INFO] [stdout] 677 |     let res_start_name;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_res_start_name` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res_start_name` is never read
[INFO] [stdout]    --> src/lib.rs:680:20
[INFO] [stdout]     |
[INFO] [stdout] 680 |         Some(r) => res_start_name = r,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "f58740ba50214b50a263b61522077194dadf729ca60fc557b65830f02aac44fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f58740ba50214b50a263b61522077194dadf729ca60fc557b65830f02aac44fe", kill_on_drop: false }`
[INFO] [stdout] f58740ba50214b50a263b61522077194dadf729ca60fc557b65830f02aac44fe