[INFO] cloning repository https://github.com/xiaoyuechen/mcm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaoyuechen/mcm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoyuechen%2Fmcm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoyuechen%2Fmcm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 18382484481f88d2181ff7ea266b0244ee060dc7 [INFO] building xiaoyuechen/mcm against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoyuechen%2Fmcm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/xiaoyuechen/mcm on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xiaoyuechen/mcm [INFO] finished tweaking git repo https://github.com/xiaoyuechen/mcm [INFO] tweaked toml for git repo https://github.com/xiaoyuechen/mcm written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xiaoyuechen/mcm 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 065a095a7f89ce6abd6b18f171cda7074ad4852dd539e45ce18c3281c496d1fb [INFO] running `Command { std: "docker" "start" "-a" "065a095a7f89ce6abd6b18f171cda7074ad4852dd539e45ce18c3281c496d1fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "065a095a7f89ce6abd6b18f171cda7074ad4852dd539e45ce18c3281c496d1fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "065a095a7f89ce6abd6b18f171cda7074ad4852dd539e45ce18c3281c496d1fb", kill_on_drop: false }` [INFO] [stdout] 065a095a7f89ce6abd6b18f171cda7074ad4852dd539e45ce18c3281c496d1fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4bda9947690eea285148b83184e4fb8a2bb2f74b279b4a6ed721a8f2cdf0b64a [INFO] running `Command { std: "docker" "start" "-a" "4bda9947690eea285148b83184e4fb8a2bb2f74b279b4a6ed721a8f2cdf0b64a", kill_on_drop: false }` [INFO] [stderr] Compiling mcm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/lib.rs:55:13 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lib.rs:55:27 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lib.rs:55:41 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/lib.rs:100:27 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:100:41 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/lib.rs:100:55 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AConfig` is never constructed [INFO] [stdout] --> src/lib.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | struct AConfig { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 82 | impl AConfig { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 83 | fn new(l1: u32, l2: u32, s: bool) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a_op` is never used [INFO] [stdout] --> src/lib.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn a_op(u: Odd, v: Odd, p: &AConfig) -> Odd { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `Command { std: "docker" "inspect" "4bda9947690eea285148b83184e4fb8a2bb2f74b279b4a6ed721a8f2cdf0b64a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bda9947690eea285148b83184e4fb8a2bb2f74b279b4a6ed721a8f2cdf0b64a", kill_on_drop: false }` [INFO] [stdout] 4bda9947690eea285148b83184e4fb8a2bb2f74b279b4a6ed721a8f2cdf0b64a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ec667437bb3671722d0d69049137bee2e37ab1c0bbc0592debec877b5bf23882 [INFO] running `Command { std: "docker" "start" "-a" "ec667437bb3671722d0d69049137bee2e37ab1c0bbc0592debec877b5bf23882", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/lib.rs:55:13 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lib.rs:55:27 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lib.rs:55:41 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mcm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/lib.rs:100:27 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:100:41 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/lib.rs:100:55 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AConfig` is never constructed [INFO] [stdout] --> src/lib.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | struct AConfig { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 82 | impl AConfig { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 83 | fn new(l1: u32, l2: u32, s: bool) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a_op` is never used [INFO] [stdout] --> src/lib.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn a_op(u: Odd, v: Odd, p: &AConfig) -> Odd { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/lib.rs:55:13 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lib.rs:55:27 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/lib.rs:55:41 [INFO] [stdout] | [INFO] [stdout] 55 | fn huristic(r: &Set, s: &Set, t: &Set) -> Odd { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/lib.rs:100:27 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:100:41 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/lib.rs:100:55 [INFO] [stdout] | [INFO] [stdout] 100 | fn vertex_fundamental_set(u: &Set, v: &Set, b: u32) -> Set { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device [INFO] [stderr] error: could not compile `mcm` (lib test); 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/44f415c1d617ebc7b931a243b7b321ef8a6ca47c/bin/rustc --crate-name mcm --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=41d63a1848af96f2 -C extra-filename=-67a465f232bfeccc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "ec667437bb3671722d0d69049137bee2e37ab1c0bbc0592debec877b5bf23882", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec667437bb3671722d0d69049137bee2e37ab1c0bbc0592debec877b5bf23882", kill_on_drop: false }` [INFO] [stdout] ec667437bb3671722d0d69049137bee2e37ab1c0bbc0592debec877b5bf23882