[INFO] cloning repository https://github.com/luxrck/icat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luxrck/icat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Ficat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Ficat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6eb0876c6af8c6c2cada325750a43f3e054aba3d [INFO] checking luxrck/icat against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Ficat" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/luxrck/icat 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 git repo https://github.com/luxrck/icat [INFO] finished tweaking git repo https://github.com/luxrck/icat [INFO] tweaked toml for git repo https://github.com/luxrck/icat written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/luxrck/icat 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ucd-util v0.1.2 [INFO] [stderr] Downloaded proc-macro2 v0.4.20 [INFO] [stderr] Downloaded quote v0.6.9 [INFO] [stderr] Downloaded num-derive v0.2.3 [INFO] [stderr] Downloaded console v0.6.2 [INFO] [stderr] Downloaded lock_api v0.1.4 [INFO] [stderr] Downloaded rand_core v0.2.2 [INFO] [stderr] Downloaded image v0.20.0 [INFO] [stderr] Downloaded smallvec v0.6.5 [INFO] [stderr] Downloaded rand v0.5.5 [INFO] [stderr] Downloaded syn v0.15.16 [INFO] [stderr] Downloaded tiff v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7e8ace15848db6518ad3d468f45a8b399a74cbc1da2d743dcd5d4d86827ad7ab [INFO] running `Command { std: "docker" "start" "-a" "7e8ace15848db6518ad3d468f45a8b399a74cbc1da2d743dcd5d4d86827ad7ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e8ace15848db6518ad3d468f45a8b399a74cbc1da2d743dcd5d4d86827ad7ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e8ace15848db6518ad3d468f45a8b399a74cbc1da2d743dcd5d4d86827ad7ab", kill_on_drop: false }` [INFO] [stdout] 7e8ace15848db6518ad3d468f45a8b399a74cbc1da2d743dcd5d4d86827ad7ab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8aba37af7a362627d7a7b724cb119e48df498c1dd4099bdf12cd15a0a97dab03 [INFO] running `Command { std: "docker" "start" "-a" "8aba37af7a362627d7a7b724cb119e48df498c1dd4099bdf12cd15a0a97dab03", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Checking byteorder v1.2.7 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Compiling rayon v1.0.2 [INFO] [stderr] Compiling num-derive v0.2.3 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking smallvec v0.6.5 [INFO] [stderr] Checking rand_core v0.2.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking owning_ref v0.3.3 [INFO] [stderr] Checking ucd-util v0.1.2 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling regex v1.0.5 [INFO] [stderr] Checking regex-syntax v0.6.2 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking lock_api v0.1.4 [INFO] [stderr] Checking inflate v0.4.3 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking clicolors-control v0.2.0 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking gif v0.10.1 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling quote v0.6.9 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling syn v0.15.16 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking parking_lot v0.6.4 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Checking console v0.6.2 [INFO] [stderr] Checking tiff v0.2.1 [INFO] [stderr] Checking image v0.20.0 [INFO] [stderr] Checking icat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:34:42 [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut dyn io::Write) -> Result<(), ImageError> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:34:42 [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut dyn io::Write) -> Result<(), ImageError> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:40:34 [INFO] [stdout] | [INFO] [stdout] 40 | fn write(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 40 | fn write(&self, output: &mut dyn io::Write) -> Result<(), ImageError> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:40:34 [INFO] [stdout] | [INFO] [stdout] 40 | fn write(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 40 | fn write(&self, output: &mut dyn io::Write) -> Result<(), ImageError> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output` [INFO] [stdout] --> src/main.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output` [INFO] [stdout] --> src/main.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 34 | fn write_bestfit(&self, output: &mut io::Write) -> Result<(), ImageError> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.03s [INFO] running `Command { std: "docker" "inspect" "8aba37af7a362627d7a7b724cb119e48df498c1dd4099bdf12cd15a0a97dab03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aba37af7a362627d7a7b724cb119e48df498c1dd4099bdf12cd15a0a97dab03", kill_on_drop: false }` [INFO] [stdout] 8aba37af7a362627d7a7b724cb119e48df498c1dd4099bdf12cd15a0a97dab03