[INFO] fetching crate ultra_tournament 0.1.0... [INFO] building ultra_tournament-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] extracting crate ultra_tournament 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate ultra_tournament 0.1.0 [INFO] finished tweaking crates.io crate ultra_tournament 0.1.0 [INFO] tweaked toml for crates.io crate ultra_tournament 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ultra_tournament 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 98 packages to latest compatible versions [INFO] [stderr] Adding colored v2.2.0 (available: v3.0.0) [INFO] [stderr] Adding enum-map v0.6.6 (available: v2.7.3) [INFO] [stderr] Adding enum-map-derive v0.4.6 (available: v0.17.0) [INFO] [stderr] Adding petgraph v0.4.13 (available: v0.8.2) [INFO] [stderr] Adding ptree v0.2.1 (available: v0.5.2) [INFO] [stderr] Adding rand v0.7.3 (available: v0.9.2) [INFO] [stderr] Adding specs v0.16.1 (available: v0.20.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 03b3cb884cdc2ba85c6cb560248f05aeb9091516ed940118bb2b450cc51ded39 [INFO] running `Command { std: "docker" "start" "-a" "03b3cb884cdc2ba85c6cb560248f05aeb9091516ed940118bb2b450cc51ded39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03b3cb884cdc2ba85c6cb560248f05aeb9091516ed940118bb2b450cc51ded39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03b3cb884cdc2ba85c6cb560248f05aeb9091516ed940118bb2b450cc51ded39", kill_on_drop: false }` [INFO] [stdout] 03b3cb884cdc2ba85c6cb560248f05aeb9091516ed940118bb2b450cc51ded39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 49585ce1740f84d186dd547b550732dd796586d7f34c71d31e3a3277f8986f9b [INFO] running `Command { std: "docker" "start" "-a" "49585ce1740f84d186dd547b550732dd796586d7f34c71d31e3a3277f8986f9b", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling rayon-core v1.13.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling serde v0.8.23 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling linked-hash-map v0.5.6 [INFO] [stderr] Compiling ahash v0.3.8 [INFO] [stderr] Compiling ordered-float v1.1.1 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling rust-ini v0.13.0 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling mopa v0.2.2 [INFO] [stderr] Compiling tint v1.0.1 [INFO] [stderr] Compiling isatty v0.1.9 [INFO] [stderr] Compiling directories v1.0.2 [INFO] [stderr] Compiling shrev v1.1.3 [INFO] [stderr] Compiling yaml-rust v0.4.5 [INFO] [stderr] Compiling array-macro v1.0.5 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling tuple_utils v0.3.0 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling colored v2.2.0 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling serde_test v0.8.23 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling linked-hash-map v0.3.0 [INFO] [stderr] Compiling enum-map-derive v0.4.6 [INFO] [stderr] Compiling tynm v0.1.10 [INFO] [stderr] Compiling enum-map v0.6.6 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling shred v0.10.2 [INFO] [stderr] Compiling hibitset v0.6.4 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling serde-value v0.5.3 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling serde-hjson v0.8.2 [INFO] [stderr] Compiling specs v0.16.1 [INFO] [stderr] Compiling config v0.9.3 [INFO] [stderr] Compiling ptree v0.2.1 [INFO] [stderr] Compiling ultra_tournament v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/tournament.rs:457:14 [INFO] [stdout] | [INFO] [stdout] 457 | fn children(&self) -> Cow<[Self::Child]> { [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] 457 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.27s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "49585ce1740f84d186dd547b550732dd796586d7f34c71d31e3a3277f8986f9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49585ce1740f84d186dd547b550732dd796586d7f34c71d31e3a3277f8986f9b", kill_on_drop: false }` [INFO] [stdout] 49585ce1740f84d186dd547b550732dd796586d7f34c71d31e3a3277f8986f9b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 054e970f9ab891f96eb12c8ae7226c414709750eec39f923a0975b639918d88f [INFO] running `Command { std: "docker" "start" "-a" "054e970f9ab891f96eb12c8ae7226c414709750eec39f923a0975b639918d88f", kill_on_drop: false }` [INFO] [stderr] Compiling arrayvec v0.7.6 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/tournament.rs:457:14 [INFO] [stdout] | [INFO] [stdout] 457 | fn children(&self) -> Cow<[Self::Child]> { [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] 457 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num-format v0.4.4 [INFO] [stderr] Compiling ultra_tournament v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `MyMetadata` is never constructed [INFO] [stdout] --> src/test/test_docs.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct MyMetadata; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/tournament.rs:457:14 [INFO] [stdout] | [INFO] [stdout] 457 | fn children(&self) -> Cow<[Self::Child]> { [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] 457 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/test/test_docs.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 6 | impl MyMetadata { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 7 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `U32BattleSystem` is never constructed [INFO] [stdout] --> src/test/test_docs.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct U32BattleSystem; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.54s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "054e970f9ab891f96eb12c8ae7226c414709750eec39f923a0975b639918d88f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "054e970f9ab891f96eb12c8ae7226c414709750eec39f923a0975b639918d88f", kill_on_drop: false }` [INFO] [stdout] 054e970f9ab891f96eb12c8ae7226c414709750eec39f923a0975b639918d88f