[INFO] fetching crate glyph_packer 0.0.2...
[INFO] testing glyph_packer-0.0.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate glyph_packer 0.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate glyph_packer 0.0.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate glyph_packer 0.0.2
[INFO] finished tweaking crates.io crate glyph_packer 0.0.2
[INFO] tweaked toml for crates.io crate glyph_packer 0.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.4.3
[INFO] [stderr]   Downloaded inflate v0.1.1
[INFO] [stderr]   Downloaded lzw v0.9.0
[INFO] [stderr]   Downloaded gif v0.7.0
[INFO] [stderr]   Downloaded image v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84ae697dbabd84204c63b2ba748bb866309be48d4fabb0f67cc99255c82d5cd6
[INFO] running `Command { std: "docker" "start" "-a" "84ae697dbabd84204c63b2ba748bb866309be48d4fabb0f67cc99255c82d5cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84ae697dbabd84204c63b2ba748bb866309be48d4fabb0f67cc99255c82d5cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ae697dbabd84204c63b2ba748bb866309be48d4fabb0f67cc99255c82d5cd6", kill_on_drop: false }`
[INFO] [stdout] 84ae697dbabd84204c63b2ba748bb866309be48d4fabb0f67cc99255c82d5cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68ed92e597ae035dacbfb8da8616d54a7cb6cfe641f152afd0c47c16800e35f5
[INFO] running `Command { std: "docker" "start" "-a" "68ed92e597ae035dacbfb8da8616d54a7cb6cfe641f152afd0c47c16800e35f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling lzw v0.9.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling gif v0.7.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling png v0.4.3
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling image v0.6.1
[INFO] [stderr]    Compiling glyph_packer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "68ed92e597ae035dacbfb8da8616d54a7cb6cfe641f152afd0c47c16800e35f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ed92e597ae035dacbfb8da8616d54a7cb6cfe641f152afd0c47c16800e35f5", kill_on_drop: false }`
[INFO] [stdout] 68ed92e597ae035dacbfb8da8616d54a7cb6cfe641f152afd0c47c16800e35f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e83fc1eddcbb1d5139494f879cea495311dd48f75eaddd92a6ffd7ec24984e9
[INFO] running `Command { std: "docker" "start" "-a" "3e83fc1eddcbb1d5139494f879cea495311dd48f75eaddd92a6ffd7ec24984e9", kill_on_drop: false }`
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling glyph_packer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `texture_packer`
[INFO] [stdout]  --> examples/packer-test.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate texture_packer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> examples/packer-test.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::old_io::File;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> examples/packer-test.rs:31:34
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let image = image::open(&Path::new(filename)).unwrap();
[INFO] [stdout]    |                                  ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 6  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> examples/packer-test.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let fout = File::create(&Path::new(output_filename)).unwrap();
[INFO] [stdout]    |                              ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 6  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/packer-test.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]  --> examples/packer-test.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `path`
[INFO] [stdout]  --> examples/packer-test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> examples/packer-test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0463, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glyph_packer` (example "packer-test") due to 12 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3e83fc1eddcbb1d5139494f879cea495311dd48f75eaddd92a6ffd7ec24984e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e83fc1eddcbb1d5139494f879cea495311dd48f75eaddd92a6ffd7ec24984e9", kill_on_drop: false }`
[INFO] [stdout] 3e83fc1eddcbb1d5139494f879cea495311dd48f75eaddd92a6ffd7ec24984e9
[INFO] testing glyph_packer-0.0.2 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate glyph_packer 0.0.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate glyph_packer 0.0.2 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate glyph_packer 0.0.2
[INFO] finished tweaking crates.io crate glyph_packer 0.0.2
[INFO] tweaked toml for crates.io crate glyph_packer 0.0.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39e6c39df3e3cb345992a0a98ebc5c84a83c8d45ad534ad333d5e3cd4b51a96b
[INFO] running `Command { std: "docker" "start" "-a" "39e6c39df3e3cb345992a0a98ebc5c84a83c8d45ad534ad333d5e3cd4b51a96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39e6c39df3e3cb345992a0a98ebc5c84a83c8d45ad534ad333d5e3cd4b51a96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e6c39df3e3cb345992a0a98ebc5c84a83c8d45ad534ad333d5e3cd4b51a96b", kill_on_drop: false }`
[INFO] [stdout] 39e6c39df3e3cb345992a0a98ebc5c84a83c8d45ad534ad333d5e3cd4b51a96b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c90c40e7a45f09a7e6453ab136786416d70bdde8bbe79c8c0b1bf56bf328d0da
[INFO] running `Command { std: "docker" "start" "-a" "c90c40e7a45f09a7e6453ab136786416d70bdde8bbe79c8c0b1bf56bf328d0da", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling lzw v0.9.0
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling gif v0.7.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling png v0.4.3
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling image v0.6.1
[INFO] [stderr]    Compiling glyph_packer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "c90c40e7a45f09a7e6453ab136786416d70bdde8bbe79c8c0b1bf56bf328d0da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c90c40e7a45f09a7e6453ab136786416d70bdde8bbe79c8c0b1bf56bf328d0da", kill_on_drop: false }`
[INFO] [stdout] c90c40e7a45f09a7e6453ab136786416d70bdde8bbe79c8c0b1bf56bf328d0da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a331af32787060ef7106d4edcdd5bbe35504a117c16283c67ec511fd62c50731
[INFO] running `Command { std: "docker" "start" "-a" "a331af32787060ef7106d4edcdd5bbe35504a117c16283c67ec511fd62c50731", kill_on_drop: false }`
[INFO] [stderr]    Compiling glyph_packer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `texture_packer`
[INFO] [stdout]  --> examples/packer-test.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate texture_packer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> examples/packer-test.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::old_io::File;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> examples/packer-test.rs:31:34
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let image = image::open(&Path::new(filename)).unwrap();
[INFO] [stdout]    |                                  ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 6  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> examples/packer-test.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let fout = File::create(&Path::new(output_filename)).unwrap();
[INFO] [stdout]    |                              ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 6  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/packer-test.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/packer-test.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]  --> examples/packer-test.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `path`
[INFO] [stdout]  --> examples/packer-test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> examples/packer-test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io, path, collections, core)]
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0463, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glyph_packer` (example "packer-test") due to 12 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/buffer2d.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         replace(self, new_buff);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = replace(self, new_buff);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a331af32787060ef7106d4edcdd5bbe35504a117c16283c67ec511fd62c50731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a331af32787060ef7106d4edcdd5bbe35504a117c16283c67ec511fd62c50731", kill_on_drop: false }`
[INFO] [stdout] a331af32787060ef7106d4edcdd5bbe35504a117c16283c67ec511fd62c50731
