[INFO] cloning repository https://github.com/takus69/ahc034
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takus69/ahc034" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc034", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc034'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37a0928309a2cdd55cfd25cd08f48a66da2cf2a5
[INFO] building takus69/ahc034 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc034" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takus69/ahc034 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/takus69/ahc034
[INFO] finished tweaking git repo https://github.com/takus69/ahc034
[INFO] tweaked toml for git repo https://github.com/takus69/ahc034 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/takus69/ahc034 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2ca263eb4b76c67cf1cad58c73f722ae1e7f6a35205791c9b37a262c96c452a
[INFO] running `Command { std: "docker" "start" "-a" "c2ca263eb4b76c67cf1cad58c73f722ae1e7f6a35205791c9b37a262c96c452a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2ca263eb4b76c67cf1cad58c73f722ae1e7f6a35205791c9b37a262c96c452a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ca263eb4b76c67cf1cad58c73f722ae1e7f6a35205791c9b37a262c96c452a", kill_on_drop: false }`
[INFO] [stdout] c2ca263eb4b76c67cf1cad58c73f722ae1e7f6a35205791c9b37a262c96c452a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56b653764e1fa1e6d0be0748a657329cda919a8694ebf1431619be4f85d8eaf9
[INFO] running `Command { std: "docker" "start" "-a" "56b653764e1fa1e6d0be0748a657329cda919a8694ebf1431619be4f85d8eaf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proconio v0.4.5
[INFO] [stderr]    Compiling ahc034 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `row_sum`
[INFO] [stdout]    --> src/main.rs:170:21
[INFO] [stdout]     |
[INFO] [stdout] 170 |                 let row_sum: i32 = solver.h[pos.0].iter().map(|x| x.abs()).sum();
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_sum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n` is never read
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solver {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 14 |     n: usize,
[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 0.81s
[INFO] running `Command { std: "docker" "inspect" "56b653764e1fa1e6d0be0748a657329cda919a8694ebf1431619be4f85d8eaf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56b653764e1fa1e6d0be0748a657329cda919a8694ebf1431619be4f85d8eaf9", kill_on_drop: false }`
[INFO] [stdout] 56b653764e1fa1e6d0be0748a657329cda919a8694ebf1431619be4f85d8eaf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32
[INFO] running `Command { std: "docker" "start" "-a" "1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32/hosts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32", kill_on_drop: false }`
[INFO] [stdout] 1114910fd7890d128d4917241ecfa3772242a446e4a6ae3cbadfd0b6f91f3e32