[INFO] cloning repository https://github.com/ef3d0c3e/png_data
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ef3d0c3e/png_data" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fef3d0c3e%2Fpng_data", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fef3d0c3e%2Fpng_data'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d8cb589ec23194f4648381c80acfbffdf8c0543
[INFO] checking ef3d0c3e/png_data against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fef3d0c3e%2Fpng_data" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ef3d0c3e/png_data
[INFO] finished tweaking git repo https://github.com/ef3d0c3e/png_data
[INFO] tweaked toml for git repo https://github.com/ef3d0c3e/png_data written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ef3d0c3e/png_data on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ef3d0c3e/png_data 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1404d2f89f36bb548e97b90876959df8463d7002d7500479d5c8abce53921352
[INFO] running `Command { std: "docker" "start" "-a" "1404d2f89f36bb548e97b90876959df8463d7002d7500479d5c8abce53921352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1404d2f89f36bb548e97b90876959df8463d7002d7500479d5c8abce53921352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1404d2f89f36bb548e97b90876959df8463d7002d7500479d5c8abce53921352", kill_on_drop: false }`
[INFO] [stdout] 1404d2f89f36bb548e97b90876959df8463d7002d7500479d5c8abce53921352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d93e4fa549a304558f297bda58d6051eb6ad8015e9d21a818cd9d58cca599468
[INFO] running `Command { std: "docker" "start" "-a" "d93e4fa549a304558f297bda58d6051eb6ad8015e9d21a818cd9d58cca599468", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking cpufeatures v0.2.13
[INFO] [stderr]     Checking crc v3.2.1
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking entropy v0.4.2
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking flate2 v1.0.31
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.74
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking password-hash v0.5.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking argon2 v0.5.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking png_data v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `isqrt` has been stable since 1.84.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/png_data/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(isqrt)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `isqrt` has been stable since 1.84.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/png_data/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(isqrt)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/png_embed/block.rs:354:7
[INFO] [stdout]     |
[INFO] [stdout] 354 |         for i in 0..data.len() / 2 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte`
[INFO] [stdout]    --> src/png_embed/block.rs:355:8
[INFO] [stdout]     |
[INFO] [stdout] 355 |             let byte = it.next().unwrap();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_byte`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "d93e4fa549a304558f297bda58d6051eb6ad8015e9d21a818cd9d58cca599468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d93e4fa549a304558f297bda58d6051eb6ad8015e9d21a818cd9d58cca599468", kill_on_drop: false }`
[INFO] [stdout] d93e4fa549a304558f297bda58d6051eb6ad8015e9d21a818cd9d58cca599468