[INFO] cloning repository https://github.com/hsmtkk/animated-couscous
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/animated-couscous" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fanimated-couscous", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fanimated-couscous'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98468c2d837f2e0cbbbb0e60451c7972144e2db7
[INFO] testing hsmtkk/animated-couscous against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fanimated-couscous" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hsmtkk/animated-couscous on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hsmtkk/animated-couscous
[INFO] finished tweaking git repo https://github.com/hsmtkk/animated-couscous
[INFO] tweaked toml for git repo https://github.com/hsmtkk/animated-couscous written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hsmtkk/animated-couscous 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a105a8c994958bc7b2689a82c5f7a1e5f3f571f8075dd061e7e173c2868d2a72
[INFO] running `Command { std: "docker" "start" "-a" "a105a8c994958bc7b2689a82c5f7a1e5f3f571f8075dd061e7e173c2868d2a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a105a8c994958bc7b2689a82c5f7a1e5f3f571f8075dd061e7e173c2868d2a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a105a8c994958bc7b2689a82c5f7a1e5f3f571f8075dd061e7e173c2868d2a72", kill_on_drop: false }`
[INFO] [stdout] a105a8c994958bc7b2689a82c5f7a1e5f3f571f8075dd061e7e173c2868d2a72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82319fbf7fb4ea945cbfbe12748cb80a7e4e994f1ecb8371af2d6472f648b39f
[INFO] running `Command { std: "docker" "start" "-a" "82319fbf7fb4ea945cbfbe12748cb80a7e4e994f1ecb8371af2d6472f648b39f", kill_on_drop: false }`
[INFO] [stderr]    Compiling animated-couscous v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Carrot` is never constructed
[INFO] [stdout]  --> src/rabbit_carrot.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Carrot {
[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/rabbit_carrot.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Carrot {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 7 |     fn new(mass:u32, sugar:u32) -> Carrot {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tester` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait Tester {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_tester` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn new_tester(sugar_std:u32, accepted_error:u32) -> impl Tester {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TesterImpl` is never constructed
[INFO] [stdout]   --> src/rabbit_carrot.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct TesterImpl {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl TesterImpl {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 26 |     fn new(sugar_std:u32, accepted_error:u32) -> TesterImpl {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn select(tester:impl Tester, carrots:Vec<Carrot>) -> Option<usize>{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "82319fbf7fb4ea945cbfbe12748cb80a7e4e994f1ecb8371af2d6472f648b39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82319fbf7fb4ea945cbfbe12748cb80a7e4e994f1ecb8371af2d6472f648b39f", kill_on_drop: false }`
[INFO] [stdout] 82319fbf7fb4ea945cbfbe12748cb80a7e4e994f1ecb8371af2d6472f648b39f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f226bfda21a2ccf88f6ed03df5011cd35cbfa129156dd5ce042a3c2a57014213
[INFO] running `Command { std: "docker" "start" "-a" "f226bfda21a2ccf88f6ed03df5011cd35cbfa129156dd5ce042a3c2a57014213", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Carrot` is never constructed
[INFO] [stdout]  --> src/rabbit_carrot.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Carrot {
[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/rabbit_carrot.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Carrot {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 7 |     fn new(mass:u32, sugar:u32) -> Carrot {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tester` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait Tester {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_tester` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn new_tester(sugar_std:u32, accepted_error:u32) -> impl Tester {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TesterImpl` is never constructed
[INFO] [stdout]   --> src/rabbit_carrot.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct TesterImpl {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl TesterImpl {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 26 |     fn new(sugar_std:u32, accepted_error:u32) -> TesterImpl {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select` is never used
[INFO] [stdout]   --> src/rabbit_carrot.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn select(tester:impl Tester, carrots:Vec<Carrot>) -> Option<usize>{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling animated-couscous v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "f226bfda21a2ccf88f6ed03df5011cd35cbfa129156dd5ce042a3c2a57014213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f226bfda21a2ccf88f6ed03df5011cd35cbfa129156dd5ce042a3c2a57014213", kill_on_drop: false }`
[INFO] [stdout] f226bfda21a2ccf88f6ed03df5011cd35cbfa129156dd5ce042a3c2a57014213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795
[INFO] running `Command { std: "docker" "start" "-a" "b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795/.tmp-resolv.conf.hash3517512800: no space left on device
[INFO] running `Command { std: "docker" "inspect" "b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795", kill_on_drop: false }`
[INFO] [stdout] b565483c1257a68a65c9883429b3db6970a717cd0b4cfaa3488010eedfefd795