[INFO] cloning repository https://github.com/michal-hynek/ultimate-rust-fundations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michal-hynek/ultimate-rust-fundations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichal-hynek%2Fultimate-rust-fundations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichal-hynek%2Fultimate-rust-fundations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1255415f1a30c79319eab266a400ce7cc7495505
[INFO] checking michal-hynek/ultimate-rust-fundations against master#5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichal-hynek%2Fultimate-rust-fundations" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/michal-hynek/ultimate-rust-fundations
[INFO] finished tweaking git repo https://github.com/michal-hynek/ultimate-rust-fundations
[INFO] tweaked toml for git repo https://github.com/michal-hynek/ultimate-rust-fundations written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/michal-hynek/ultimate-rust-fundations on toolchain 5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/michal-hynek/ultimate-rust-fundations 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" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
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[INFO] [stderr] workspace: /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70c3bd0af00d3428fec45f8c5b82ab11d964e83ef8a1fb13305199dd5f0325db
[INFO] running `Command { std: "docker" "start" "-a" "70c3bd0af00d3428fec45f8c5b82ab11d964e83ef8a1fb13305199dd5f0325db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70c3bd0af00d3428fec45f8c5b82ab11d964e83ef8a1fb13305199dd5f0325db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70c3bd0af00d3428fec45f8c5b82ab11d964e83ef8a1fb13305199dd5f0325db", kill_on_drop: false }`
[INFO] [stdout] 70c3bd0af00d3428fec45f8c5b82ab11d964e83ef8a1fb13305199dd5f0325db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8a88765f3337b77215c79cd9fc062531cc148b7c1180da1da9daa7d85e90c72
[INFO] running `Command { std: "docker" "start" "-a" "d8a88765f3337b77215c79cd9fc062531cc148b7c1180da1da9daa7d85e90c72", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
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[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
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[INFO] [stderr]     Checking workers2 v0.1.0 (/opt/rustwide/workdir/src/workers2)
[INFO] [stderr]     Checking memory2 v0.1.0 (/opt/rustwide/workdir/src/memory2)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/memory2/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s = String::from("");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rwlocks v0.1.0 (/opt/rustwide/workdir/src/rwlocks)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/memory2/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s = String::from("");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking deadlocks v0.1.0 (/opt/rustwide/workdir/src/deadlocks)
[INFO] [stderr]     Checking divide_work v0.1.0 (/opt/rustwide/workdir/src/divide_work)
[INFO] [stderr]     Checking packing v0.1.0 (/opt/rustwide/workdir/src/packing)
[INFO] [stderr]     Checking cycles v0.1.0 (/opt/rustwide/workdir/src/cycles)
[INFO] [stderr]     Checking greet v0.1.0 (/opt/rustwide/workdir/src/greet)
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> src/packing/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct OneByte {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 2 |     a: u8,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> src/packing/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct TwoBytes {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 6 |     a: u16,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> src/packing/src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct FourBytes {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 16 |     a: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking workers v0.1.0 (/opt/rustwide/workdir/src/workers)
[INFO] [stderr]     Checking dropping3 v0.1.0 (/opt/rustwide/workdir/src/dropping3)
[INFO] [stderr]     Checking parking v0.1.0 (/opt/rustwide/workdir/src/parking)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cycles/src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Strong(Rc<Node>),
[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)]` (part of `#[warn(unused)]`) 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] 12 -     Strong(Rc<Node>),
[INFO] [stdout] 12 +     Strong(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cycles/src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Weak(Weak<Node>),
[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] 13 -     Weak(Weak<Node>),
[INFO] [stdout] 13 +     Weak(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking channels1 v0.1.0 (/opt/rustwide/workdir/src/channels1)
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/src/hello_world)
[INFO] [stderr]     Checking traits3 v0.1.0 (/opt/rustwide/workdir/src/traits3)
[INFO] [stderr]     Checking tpriority v0.1.0 (/opt/rustwide/workdir/src/tpriority)
[INFO] [stderr]     Checking poisoning v0.1.0 (/opt/rustwide/workdir/src/poisoning)
[INFO] [stderr]     Checking atomics v0.1.0 (/opt/rustwide/workdir/src/atomics)
[INFO] [stderr]     Checking iterators2 v0.1.0 (/opt/rustwide/workdir/src/iterators2)
[INFO] [stderr]     Checking refc v0.1.0 (/opt/rustwide/workdir/src/refc)
[INFO] [stderr]     Checking dropping2 v0.1.0 (/opt/rustwide/workdir/src/dropping2)
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/src/generics)
[INFO] [stderr]     Checking dashing v0.1.0 (/opt/rustwide/workdir/src/dashing)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterators2/src/main.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn iter(&self) -> HashMapBucketIter<K, V> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn iter(&self) -> HashMapBucketIter<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/src/traits)
[INFO] [stdout] warning: fields `id` and `x` are never read
[INFO] [stdout]   --> src/dropping2/src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct HasDropables {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 19 |     id: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 20 |     x: MyStruct,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/src/lifetimes)
[INFO] [stderr]     Checking dropping v0.1.0 (/opt/rustwide/workdir/src/dropping)
[INFO] [stderr]     Checking generics2 v0.1.0 (/opt/rustwide/workdir/src/generics2)
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling bytemuck_derive v1.10.0
[INFO] [stderr]    Compiling profiling-procmacros v1.0.17
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking profiling v1.0.17
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr] warning: libsqlite3-sys@0.30.1: cc: fatal error: Killed signal terminated program cc1
[INFO] [stderr] warning: libsqlite3-sys@0.30.1: compilation terminated.
[INFO] [stderr] error: failed to run custom build command for `libsqlite3-sys v0.30.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libsqlite3-sys-fc40a6c48550b21f/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=LIBSQLITE3_SYS_USE_PKG_CONFIG
[INFO] [stderr]   cargo:include=/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libsqlite3-sys-0.30.1/sqlite3
[INFO] [stderr]   cargo:rerun-if-changed=sqlite3/sqlite3.c
[INFO] [stderr]   cargo:rerun-if-changed=sqlite3/wasm32-wasi-vfs.c
[INFO] [stderr]   cargo:rerun-if-env-changed=SQLITE_MAX_VARIABLE_NUMBER
[INFO] [stderr]   cargo:rerun-if-env-changed=SQLITE_MAX_EXPR_DEPTH
[INFO] [stderr]   cargo:rerun-if-env-changed=SQLITE_MAX_COLUMN
[INFO] [stderr]   cargo:rerun-if-env-changed=LIBSQLITE3_FLAGS
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/libsqlite3-sys-c8a55fc36c3b392b/out)
[INFO] [stderr]   OPT_LEVEL = Some(0)
[INFO] [stderr]   TARGET = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   HOST = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CC
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC
[INFO] [stderr]   CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   RUSTC_WRAPPER = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some(true)
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2,x87)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CARGO_ENCODED_RUSTFLAGS = Some(--cap-lints=forbid)
[INFO] [stderr]   cargo:warning=cc: fatal error: Killed signal terminated program cc1
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred in cc-rs: command did not execute successfully (status code exit status: 1): LC_ALL="C" "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-DSQLITE_CORE" "-DSQLITE_DEFAULT_FOREIGN_KEYS=1" "-DSQLITE_ENABLE_API_ARMOR" "-DSQLITE_ENABLE_COLUMN_METADATA" "-DSQLITE_ENABLE_DBSTAT_VTAB" "-DSQLITE_ENABLE_FTS3" "-DSQLITE_ENABLE_FTS3_PARENTHESIS" "-DSQLITE_ENABLE_FTS5" "-DSQLITE_ENABLE_JSON1" "-DSQLITE_ENABLE_LOAD_EXTENSION=1" "-DSQLITE_ENABLE_MEMORY_MANAGEMENT" "-DSQLITE_ENABLE_RTREE" "-DSQLITE_ENABLE_STAT4" "-DSQLITE_SOUNDEX" "-DSQLITE_THREADSAFE=1" "-DSQLITE_USE_URI" "-DHAVE_USLEEP=1" "-DHAVE_ISNAN" "-D_POSIX_THREAD_SAFE_FUNCTIONS" "-DHAVE_LOCALTIME_R" "-DSQLITE_ENABLE_UNLOCK_NOTIFY" "-o" "/opt/rustwide/target/debug/build/libsqlite3-sys-c8a55fc36c3b392b/out/c877a2978823c39d-sqlite3.o" "-c" "sqlite3/sqlite3.c"
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d8a88765f3337b77215c79cd9fc062531cc148b7c1180da1da9daa7d85e90c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a88765f3337b77215c79cd9fc062531cc148b7c1180da1da9daa7d85e90c72", kill_on_drop: false }`
[INFO] [stdout] d8a88765f3337b77215c79cd9fc062531cc148b7c1180da1da9daa7d85e90c72