[INFO] fetching crate wedged 0.1.0... [INFO] testing wedged-0.1.0 against 1.59.0 for beta-1.60-1 [INFO] extracting crate wedged 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate wedged 0.1.0 on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate wedged 0.1.0 [INFO] finished tweaking crates.io crate wedged 0.1.0 [INFO] tweaked toml for crates.io crate wedged 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8902c8bc73ef01fff5f7b124faf1159afcc8cd79bfdc4f91e770fe2be83fc20a [INFO] running `Command { std: "docker" "start" "-a" "8902c8bc73ef01fff5f7b124faf1159afcc8cd79bfdc4f91e770fe2be83fc20a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8902c8bc73ef01fff5f7b124faf1159afcc8cd79bfdc4f91e770fe2be83fc20a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8902c8bc73ef01fff5f7b124faf1159afcc8cd79bfdc4f91e770fe2be83fc20a", kill_on_drop: false }` [INFO] [stdout] 8902c8bc73ef01fff5f7b124faf1159afcc8cd79bfdc4f91e770fe2be83fc20a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 501b06c22a5f95168beed2cb2b0c91d85c438489f2390d9c1916edfebd0ac5ec [INFO] running `Command { std: "docker" "start" "-a" "501b06c22a5f95168beed2cb2b0c91d85c438489f2390d9c1916edfebd0ac5ec", kill_on_drop: false }` [INFO] [stderr] Compiling safe_arch v0.6.0 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling approx v0.5.1 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling nalgebra-macros v0.1.0 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling wide v0.7.4 [INFO] [stderr] Compiling simba v0.7.1 [INFO] [stderr] Compiling nalgebra v0.30.1 [INFO] [stderr] Compiling wedged v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 13s [INFO] running `Command { std: "docker" "inspect" "501b06c22a5f95168beed2cb2b0c91d85c438489f2390d9c1916edfebd0ac5ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "501b06c22a5f95168beed2cb2b0c91d85c438489f2390d9c1916edfebd0ac5ec", kill_on_drop: false }` [INFO] [stdout] 501b06c22a5f95168beed2cb2b0c91d85c438489f2390d9c1916edfebd0ac5ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6cea8ce43203275a788b2c2d40784b9f69e73d5840a6802be855beb8d184336c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6cea8ce43203275a788b2c2d40784b9f69e73d5840a6802be855beb8d184336c", kill_on_drop: false }` [INFO] [stderr] Compiling wedged v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `grade_index` [INFO] [stdout] --> src/algebra/grade_cast.rs:29:19 [INFO] [stdout] | [INFO] [stdout] 29 | pub(crate) fn grade_index(&self, g:usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `grade_index` [INFO] [stdout] --> src/algebra/grade_cast.rs:74:19 [INFO] [stdout] | [INFO] [stdout] 74 | pub(crate) fn grade_index(&self, g:usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:4:27 [INFO] [stdout] | [INFO] [stdout] 4 | #![cfg_attr(test, feature(test))] [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `wedged` due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "6cea8ce43203275a788b2c2d40784b9f69e73d5840a6802be855beb8d184336c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cea8ce43203275a788b2c2d40784b9f69e73d5840a6802be855beb8d184336c", kill_on_drop: false }` [INFO] [stdout] 6cea8ce43203275a788b2c2d40784b9f69e73d5840a6802be855beb8d184336c