[INFO] cloning repository https://github.com/clvx/ultimate-rust-foundations [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clvx/ultimate-rust-foundations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 94e1eed219d1783a8faff2b03b396fe980953d55 [INFO] checking clvx/ultimate-rust-foundations against master#e3e432d4d65a55e6db167598e96db2bcb163e316 for pr-140313 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/clvx/ultimate-rust-foundations on toolchain e3e432d4d65a55e6db167598e96db2bcb163e316 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/clvx/ultimate-rust-foundations [INFO] finished tweaking git repo https://github.com/clvx/ultimate-rust-foundations [INFO] tweaked toml for git repo https://github.com/clvx/ultimate-rust-foundations written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/clvx/ultimate-rust-foundations 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" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thread-priority v1.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a65067e372e21b26504eb30dc58965304e99f711b95eb9eace111aa481f85ba2 [INFO] running `Command { std: "docker" "start" "-a" "a65067e372e21b26504eb30dc58965304e99f711b95eb9eace111aa481f85ba2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a65067e372e21b26504eb30dc58965304e99f711b95eb9eace111aa481f85ba2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a65067e372e21b26504eb30dc58965304e99f711b95eb9eace111aa481f85ba2", kill_on_drop: false }` [INFO] [stdout] a65067e372e21b26504eb30dc58965304e99f711b95eb9eace111aa481f85ba2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 272363ebc7d88d3d49048dcf8fcdcc9b0d71b6f25e898405460dc36081f7f5f1 [INFO] running `Command { std: "docker" "start" "-a" "272363ebc7d88d3d49048dcf8fcdcc9b0d71b6f25e898405460dc36081f7f5f1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] 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Checking footgun v0.1.0 (/opt/rustwide/workdir/foundations/session2/footgun) [INFO] [stderr] Checking traits v0.1.0 (/opt/rustwide/workdir/foundations/session4/traits) [INFO] [stderr] Checking internal_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/internal_arc_mutex) [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking channels v0.1.0 (/opt/rustwide/workdir/foundations/session2/channels) [INFO] [stderr] Checking tprio v0.1.0 (/opt/rustwide/workdir/foundations/session2/tprio) [INFO] [stdout] warning: unused variable: `animal` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let animal = get_animal(); // impl Animal for Cat [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_animal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `DebuggableClonableAnimal` is never used [INFO] [stdout] --> foundations/session4/traits/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | trait DebuggableClonableAnimal: Animal+Debug+Clone {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tempfile v3.15.0 [INFO] [stdout] warning: static `HIGH_COUNT` is never used [INFO] [stdout] --> foundations/session2/tprio/src/main.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | static HIGH_COUNT: AtomicI32 = AtomicI32::new(0); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rc::Rc` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking thread_builder v0.1.0 (/opt/rustwide/workdir/foundations/session2/thread_builder) [INFO] [stderr] Checking hello v0.1.0 (/opt/rustwide/workdir/foundations/session2/hello) [INFO] [stdout] warning: unused variable: `animal` [INFO] [stdout] --> foundations/session4/traits/src/main.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let animal = get_animal(); // impl Animal for Cat [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_animal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `DebuggableClonableAnimal` is never used [INFO] [stdout] --> foundations/session4/traits/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | trait DebuggableClonableAnimal: Animal+Debug+Clone {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking external_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/external_arc_mutex) [INFO] [stdout] warning: static `HIGH_COUNT` is never used [INFO] [stdout] --> foundations/session2/tprio/src/main.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | static HIGH_COUNT: AtomicI32 = AtomicI32::new(0); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking brotli v7.0.0 [INFO] [stderr] Checking deadlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/deadlocks) [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/foundations/session1/variables) [INFO] [stderr] Checking hello_world v0.1.0 (/opt/rustwide/workdir/foundations/session1/hello_world) [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Checking save_dynamic_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_dynamic_bytes) [INFO] [stderr] Checking linked_list v0.1.0 (/opt/rustwide/workdir/foundations/session4/linked_list) [INFO] [stderr] Checking refcell v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcell) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] | ------ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 - Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] 14 + Strong(()), // Strong reference to the next node, which increases the [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | ---- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 - Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] 16 + Weak(()), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking mutexes v0.1.0 (/opt/rustwide/workdir/foundations/session2/mutexes) [INFO] [stderr] Checking dashmap v6.1.0 [INFO] [stderr] Checking lifetimes v0.1.0 (/opt/rustwide/workdir/foundations/session4/lifetimes) [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> foundations/session2/mutexes/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking divide_work v0.1.0 (/opt/rustwide/workdir/foundations/session2/divide_work) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> foundations/session2/mutexes/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 0..10 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking workers v0.1.0 (/opt/rustwide/workdir/foundations/session2/workers) [INFO] [stderr] Checking dropping v0.1.0 (/opt/rustwide/workdir/foundations/session4/dropping) [INFO] [stderr] Checking parking v0.1.0 (/opt/rustwide/workdir/foundations/session2/parking) [INFO] [stderr] Checking atomicrefcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/atomicrefcount) [INFO] [stderr] Checking operator_overloading v0.1.0 (/opt/rustwide/workdir/foundations/session4/operator_overloading) [INFO] [stderr] Checking refcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcount) [INFO] [stderr] Checking smart_pointer v0.1.0 (/opt/rustwide/workdir/foundations/session4/smart_pointer) [INFO] [stderr] Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/foundations/session2/scoped_threads) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] | ------ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 - Strong(Rc), // Strong reference to the next node, which increases the [INFO] [stdout] 14 + Strong(()), // Strong reference to the next node, which increases the [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> foundations/session4/linked_list/src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | ---- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 - Weak(Weak), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] 16 + Weak(()), // Weak reference to the next node, which does not increase the reference [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking dashing v0.1.0 (/opt/rustwide/workdir/foundations/session2/dashing) [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling zerofrom-derive v0.1.5 [INFO] [stderr] Compiling yoke-derive v0.7.5 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling thiserror-impl v2.0.11 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling async-trait v0.1.86 [INFO] [stderr] error: could not compile `tokio` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/e3e432d4d65a55e6db167598e96db2bcb163e316/bin/rustc --crate-name tokio --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --warn=unexpected_cfgs --check-cfg 'cfg(fuzzing)' --check-cfg 'cfg(loom)' --check-cfg 'cfg(mio_unsupported_force_poll_poll)' --check-cfg 'cfg(tokio_allow_from_blocking_fd)' --check-cfg 'cfg(tokio_internal_mt_counters)' --check-cfg 'cfg(tokio_no_parking_lot)' --check-cfg 'cfg(tokio_no_tuning_tests)' --check-cfg 'cfg(tokio_taskdump)' --check-cfg 'cfg(tokio_unstable)' --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="rt"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bytes", "default", "fs", "full", "io-std", "io-util", "libc", "macros", "mio", "net", "parking_lot", "process", "rt", "rt-multi-thread", "signal", "signal-hook-registry", "socket2", "sync", "test-util", "time", "tokio-macros", "tracing", "windows-sys"))' -C metadata=fe48a506836ef8be -C extra-filename=-2f91ee5383106126 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-0944ea3b95acd97b.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-32e0c0984c32f904.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-44e14aa1fb4789b7.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-2ecca6b667797f49.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-e26d2236926e1f32.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "272363ebc7d88d3d49048dcf8fcdcc9b0d71b6f25e898405460dc36081f7f5f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "272363ebc7d88d3d49048dcf8fcdcc9b0d71b6f25e898405460dc36081f7f5f1", kill_on_drop: false }` [INFO] [stdout] 272363ebc7d88d3d49048dcf8fcdcc9b0d71b6f25e898405460dc36081f7f5f1