[INFO] cloning repository https://github.com/koskja/fischer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koskja/fischer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoskja%2Ffischer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoskja%2Ffischer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 00c0fc45aae222670675d12267cac7c0b3e1f0f8 [INFO] checking koskja/fischer against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoskja%2Ffischer" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/koskja/fischer 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] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/koskja/fischer [INFO] finished tweaking git repo https://github.com/koskja/fischer [INFO] tweaked toml for git repo https://github.com/koskja/fischer written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/koskja/fischer 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 fdeflate v0.3.1 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d4d20fc63be21f986c088dbadf00fecaddd44f5b1f71c8de2d7a7d3a275a2706 [INFO] running `Command { std: "docker" "start" "-a" "d4d20fc63be21f986c088dbadf00fecaddd44f5b1f71c8de2d7a7d3a275a2706", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4d20fc63be21f986c088dbadf00fecaddd44f5b1f71c8de2d7a7d3a275a2706", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4d20fc63be21f986c088dbadf00fecaddd44f5b1f71c8de2d7a7d3a275a2706", kill_on_drop: false }` [INFO] [stdout] d4d20fc63be21f986c088dbadf00fecaddd44f5b1f71c8de2d7a7d3a275a2706 [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=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] a73708687915b4689c5aac91dc1032223aa930241d92f75ff35e4d4ed16b1d28 [INFO] running `Command { std: "docker" "start" "-a" "a73708687915b4689c5aac91dc1032223aa930241d92f75ff35e4d4ed16b1d28", kill_on_drop: false }` [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Checking weezl v0.1.7 [INFO] [stderr] Compiling x11 v2.21.0 [INFO] [stderr] Checking fdeflate v0.3.1 [INFO] [stderr] Checking half v2.2.1 [INFO] [stderr] Checking flate2 v1.0.28 [INFO] [stderr] Checking bytemuck v1.14.0 [INFO] [stderr] Checking gif v0.12.0 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking bitfield v0.14.0 [INFO] [stderr] Checking qoi v0.4.1 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking png v0.17.10 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking exr v1.71.0 [INFO] [stderr] Checking jpeg-decoder v0.3.0 [INFO] [stderr] Checking tiff v0.9.0 [INFO] [stderr] Checking image v0.24.7 [INFO] [stderr] Checking fischer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `rec_duplex` is never used [INFO] [stdout] --> src/util.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn rec_duplex() -> (RecDuplex, RecDuplex) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RecDuplex` is never constructed [INFO] [stdout] --> src/util.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct RecDuplex { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `recv`, `send`, and `with_value` are never used [INFO] [stdout] --> src/util.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl RecDuplex { [INFO] [stdout] | ------------------------------------------- methods in this implementation [INFO] [stdout] 17 | pub fn recv(&self) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | pub fn send(&self, val: T) -> Result<(), SendError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn with_value( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sync_duplex` is never used [INFO] [stdout] --> src/util.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn sync_duplex(bound: usize) -> (SyncDuplex, SyncDuplex) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SyncDuplex` is never constructed [INFO] [stdout] --> src/util.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct SyncDuplex { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `recv`, `send`, and `use_value` are never used [INFO] [stdout] --> src/util.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 46 | impl SyncDuplex { [INFO] [stdout] | -------------------------------------------- methods in this implementation [INFO] [stdout] 47 | pub fn recv(&self) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn send(&self, val: T) -> Result<(), SendError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn use_value(&self, closure: impl FnOnce(&mut T) -> eyre::Result) -> eyre::Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rec_duplex` is never used [INFO] [stdout] --> src/util.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn rec_duplex() -> (RecDuplex, RecDuplex) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RecDuplex` is never constructed [INFO] [stdout] --> src/util.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct RecDuplex { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `recv`, `send`, and `with_value` are never used [INFO] [stdout] --> src/util.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl RecDuplex { [INFO] [stdout] | ------------------------------------------- methods in this implementation [INFO] [stdout] 17 | pub fn recv(&self) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | pub fn send(&self, val: T) -> Result<(), SendError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn with_value( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sync_duplex` is never used [INFO] [stdout] --> src/util.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn sync_duplex(bound: usize) -> (SyncDuplex, SyncDuplex) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SyncDuplex` is never constructed [INFO] [stdout] --> src/util.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct SyncDuplex { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `recv`, `send`, and `use_value` are never used [INFO] [stdout] --> src/util.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 46 | impl SyncDuplex { [INFO] [stdout] | -------------------------------------------- methods in this implementation [INFO] [stdout] 47 | pub fn recv(&self) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn send(&self, val: T) -> Result<(), SendError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn use_value(&self, closure: impl FnOnce(&mut T) -> eyre::Result) -> eyre::Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.85s [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a73708687915b4689c5aac91dc1032223aa930241d92f75ff35e4d4ed16b1d28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a73708687915b4689c5aac91dc1032223aa930241d92f75ff35e4d4ed16b1d28", kill_on_drop: false }` [INFO] [stdout] a73708687915b4689c5aac91dc1032223aa930241d92f75ff35e4d4ed16b1d28