[INFO] cloning repository https://github.com/n4o847/procon-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/n4o847/procon-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fprocon-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fprocon-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07ccf4246e1177984a5bfb3d066df91040ac0dd7
[INFO] building n4o847/procon-rust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4o847%2Fprocon-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/n4o847/procon-rust 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/n4o847/procon-rust
[INFO] finished tweaking git repo https://github.com/n4o847/procon-rust
[INFO] tweaked toml for git repo https://github.com/n4o847/procon-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/n4o847/procon-rust 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.3.7
[INFO] [stderr]   Downloaded proconio-derive v0.1.6
[INFO] [stderr]   Downloaded whiteread v0.5.0
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[INFO] [stderr]   Downloaded im-rc v14.3.0
[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] [stderr]   Downloaded cargo-snippet v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9cf0a668946c1b5e360204bd06fe7d704b0e2de2570d3201cae196adc91aa3c7
[INFO] running `Command { std: "docker" "start" "-a" "9cf0a668946c1b5e360204bd06fe7d704b0e2de2570d3201cae196adc91aa3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cf0a668946c1b5e360204bd06fe7d704b0e2de2570d3201cae196adc91aa3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cf0a668946c1b5e360204bd06fe7d704b0e2de2570d3201cae196adc91aa3c7", kill_on_drop: false }`
[INFO] [stdout] 9cf0a668946c1b5e360204bd06fe7d704b0e2de2570d3201cae196adc91aa3c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 702f820afbc1bb87566ccbb458ada8fab9a3b6c4d055d0ce70441ac5dea4c962
[INFO] running `Command { std: "docker" "start" "-a" "702f820afbc1bb87566ccbb458ada8fab9a3b6c4d055d0ce70441ac5dea4c962", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
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[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling either v1.5.3
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[INFO] [stderr]    Compiling version_check v0.9.1
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling whiteread v0.5.0
[INFO] [stderr]    Compiling cargo-snippet v0.6.3
[INFO] [stderr]    Compiling maplit v1.0.2
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[INFO] [stderr]    Compiling proconio-derive v0.1.6
[INFO] [stderr]    Compiling proconio v0.3.7
[INFO] [stderr]    Compiling competitive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `BinarySearch` is never used
[INFO] [stdout]  --> src/binary_search.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub trait BinarySearch<T> {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.25s
[INFO] running `Command { std: "docker" "inspect" "702f820afbc1bb87566ccbb458ada8fab9a3b6c4d055d0ce70441ac5dea4c962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702f820afbc1bb87566ccbb458ada8fab9a3b6c4d055d0ce70441ac5dea4c962", kill_on_drop: false }`
[INFO] [stdout] 702f820afbc1bb87566ccbb458ada8fab9a3b6c4d055d0ce70441ac5dea4c962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e44f15584dba6e383fdadb35712c3ff6dad86758d489780fbdc09d0482bcaa1c
[INFO] running `Command { std: "docker" "start" "-a" "e44f15584dba6e383fdadb35712c3ff6dad86758d489780fbdc09d0482bcaa1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling competitive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `BinarySearch` is never used
[INFO] [stdout]  --> src/binary_search.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub trait BinarySearch<T> {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `equal_range` and `partition_point` are never used
[INFO] [stdout]   --> src/binary_search.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 9  |     pub trait BinarySearch<T> {
[INFO] [stdout]    |               ------------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 12 |         fn equal_range(&self, x: &T) -> Range<usize>;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 13 |         fn partition_point<F>(&self, f: F) -> usize
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "e44f15584dba6e383fdadb35712c3ff6dad86758d489780fbdc09d0482bcaa1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44f15584dba6e383fdadb35712c3ff6dad86758d489780fbdc09d0482bcaa1c", kill_on_drop: false }`
[INFO] [stdout] e44f15584dba6e383fdadb35712c3ff6dad86758d489780fbdc09d0482bcaa1c