[INFO] fetching crate sub-image 0.1.1...
[INFO] checking sub-image-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sub-image 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate sub-image 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sub-image 0.1.1
[INFO] finished tweaking crates.io crate sub-image 0.1.1
[INFO] tweaked toml for crates.io crate sub-image 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded json5 v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1825dbf42201608df60850734eb739e5f82aca1f7366bbf73582b5e20991809f
[INFO] running `Command { std: "docker" "start" "-a" "1825dbf42201608df60850734eb739e5f82aca1f7366bbf73582b5e20991809f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1825dbf42201608df60850734eb739e5f82aca1f7366bbf73582b5e20991809f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1825dbf42201608df60850734eb739e5f82aca1f7366bbf73582b5e20991809f", kill_on_drop: false }`
[INFO] [stdout] 1825dbf42201608df60850734eb739e5f82aca1f7366bbf73582b5e20991809f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 896edd75280b9e94a4c52c9b71c30bee99bb67be1dcc15d077fe4d7efa4aa60b
[INFO] running `Command { std: "docker" "start" "-a" "896edd75280b9e94a4c52c9b71c30bee99bb67be1dcc15d077fe4d7efa4aa60b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking sub-image v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/formats/image.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UnifiedImage {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     image: DynamicImage
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/formats/image.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UnifiedImage {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     image: DynamicImage
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `Command { std: "docker" "inspect" "896edd75280b9e94a4c52c9b71c30bee99bb67be1dcc15d077fe4d7efa4aa60b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896edd75280b9e94a4c52c9b71c30bee99bb67be1dcc15d077fe4d7efa4aa60b", kill_on_drop: false }`
[INFO] [stdout] 896edd75280b9e94a4c52c9b71c30bee99bb67be1dcc15d077fe4d7efa4aa60b
[INFO] checking sub-image-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate sub-image 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate sub-image 0.1.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sub-image 0.1.1
[INFO] finished tweaking crates.io crate sub-image 0.1.1
[INFO] tweaked toml for crates.io crate sub-image 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdae40209b49245f31dec9b3520703c9ad7a1164a92dc9ef0516a3b892f7a080
[INFO] running `Command { std: "docker" "start" "-a" "cdae40209b49245f31dec9b3520703c9ad7a1164a92dc9ef0516a3b892f7a080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdae40209b49245f31dec9b3520703c9ad7a1164a92dc9ef0516a3b892f7a080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdae40209b49245f31dec9b3520703c9ad7a1164a92dc9ef0516a3b892f7a080", kill_on_drop: false }`
[INFO] [stdout] cdae40209b49245f31dec9b3520703c9ad7a1164a92dc9ef0516a3b892f7a080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1707cb0d42de3512eb38e8805515dcbd5534a2054cde18f3e2cbf9be89b24e62
[INFO] running `Command { std: "docker" "start" "-a" "1707cb0d42de3512eb38e8805515dcbd5534a2054cde18f3e2cbf9be89b24e62", kill_on_drop: false }`
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking sub-image v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/formats/image.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UnifiedImage {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     image: DynamicImage
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/formats/image.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct UnifiedImage {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     image: DynamicImage
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.99s
[INFO] running `Command { std: "docker" "inspect" "1707cb0d42de3512eb38e8805515dcbd5534a2054cde18f3e2cbf9be89b24e62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1707cb0d42de3512eb38e8805515dcbd5534a2054cde18f3e2cbf9be89b24e62", kill_on_drop: false }`
[INFO] [stdout] 1707cb0d42de3512eb38e8805515dcbd5534a2054cde18f3e2cbf9be89b24e62