[INFO] cloning repository https://github.com/jsdw/seating-arrangement [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jsdw/seating-arrangement" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseating-arrangement", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseating-arrangement'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a6692e7ba424e7160b8c37c2471de225ac79bef5 [INFO] checking jsdw/seating-arrangement against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseating-arrangement" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jsdw/seating-arrangement on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jsdw/seating-arrangement [INFO] finished tweaking git repo https://github.com/jsdw/seating-arrangement [INFO] tweaked toml for git repo https://github.com/jsdw/seating-arrangement written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/jsdw/seating-arrangement already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bstr v0.2.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5260cf4e0323bb3da55130564653382ea5f881a712d07a16ee673c7065815e30 [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" "5260cf4e0323bb3da55130564653382ea5f881a712d07a16ee673c7065815e30", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5260cf4e0323bb3da55130564653382ea5f881a712d07a16ee673c7065815e30", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5260cf4e0323bb3da55130564653382ea5f881a712d07a16ee673c7065815e30", kill_on_drop: false }` [INFO] [stdout] 5260cf4e0323bb3da55130564653382ea5f881a712d07a16ee673c7065815e30 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 99de3ed8cb829544d442b4602ec71e66ee7b6633bfefd8b70a1e37e8156337d7 [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" "99de3ed8cb829544d442b4602ec71e66ee7b6633bfefd8b70a1e37e8156337d7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling serde v1.0.99 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking csv-core v0.1.6 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking bstr v0.2.7 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking ctrlc v3.1.3 [INFO] [stderr] Checking csv v1.1.1 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking seating-arrangement v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `individual_cost` [INFO] [stdout] --> src/cost.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn individual_cost(&self, seats: &Seats<'_,T>, index: usize) -> isize { [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: `cost_of_move` [INFO] [stdout] --> src/search.rs:113:12 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn cost_of_move<'t,F>(&self, seats: &mut Seats<'t,Id>, cost: &Cost) -> isize where F: Fn(&Id,&Id) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `individual_cost` [INFO] [stdout] --> src/cost.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn individual_cost(&self, seats: &Seats<'_,T>, index: usize) -> isize { [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: `cost_of_move` [INFO] [stdout] --> src/search.rs:113:12 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn cost_of_move<'t,F>(&self, seats: &mut Seats<'t,Id>, cost: &Cost) -> isize where F: Fn(&Id,&Id) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.85s [INFO] running `Command { std: "docker" "inspect" "99de3ed8cb829544d442b4602ec71e66ee7b6633bfefd8b70a1e37e8156337d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99de3ed8cb829544d442b4602ec71e66ee7b6633bfefd8b70a1e37e8156337d7", kill_on_drop: false }` [INFO] [stdout] 99de3ed8cb829544d442b4602ec71e66ee7b6633bfefd8b70a1e37e8156337d7