[INFO] cloning repository https://github.com/assalielmehdi/maximum-number-of-balloons
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/assalielmehdi/maximum-number-of-balloons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fassalielmehdi%2Fmaximum-number-of-balloons", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fassalielmehdi%2Fmaximum-number-of-balloons'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2ec7f5964246f31bf2320532d022cf3da98607f
[INFO] testing assalielmehdi/maximum-number-of-balloons against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fassalielmehdi%2Fmaximum-number-of-balloons" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/assalielmehdi/maximum-number-of-balloons
[INFO] finished tweaking git repo https://github.com/assalielmehdi/maximum-number-of-balloons
[INFO] tweaked toml for git repo https://github.com/assalielmehdi/maximum-number-of-balloons written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/assalielmehdi/maximum-number-of-balloons on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/assalielmehdi/maximum-number-of-balloons 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/wagnerf42/fast-tracer`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded tracing v0.1.22
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded const_fn v0.4.5
[INFO] [stderr]   Downloaded getrandom v0.2.1
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.4
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65618c89b6c9994ef41deedb8c6e9aebdf7bdf9af5da3044ba79ec77a23899d0
[INFO] running `Command { std: "docker" "start" "-a" "65618c89b6c9994ef41deedb8c6e9aebdf7bdf9af5da3044ba79ec77a23899d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65618c89b6c9994ef41deedb8c6e9aebdf7bdf9af5da3044ba79ec77a23899d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65618c89b6c9994ef41deedb8c6e9aebdf7bdf9af5da3044ba79ec77a23899d0", kill_on_drop: false }`
[INFO] [stdout] 65618c89b6c9994ef41deedb8c6e9aebdf7bdf9af5da3044ba79ec77a23899d0
[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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 069d9f8545f79f59c6d201d16c6bb148d5fcb982749c9132d0c1da1951438ff5
[INFO] running `Command { std: "docker" "start" "-a" "069d9f8545f79f59c6d201d16c6bb148d5fcb982749c9132d0c1da1951438ff5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rand v0.8.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling fast-tracer v0.1.0 (https://github.com/wagnerf42/fast-tracer#00d453ef)
[INFO] [stderr]    Compiling maximum-number-of-balloons-parallel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solution_seq.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]  --> src/solution_seq.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 7 |   pub fn solve(
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.44s
[INFO] running `Command { std: "docker" "inspect" "069d9f8545f79f59c6d201d16c6bb148d5fcb982749c9132d0c1da1951438ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069d9f8545f79f59c6d201d16c6bb148d5fcb982749c9132d0c1da1951438ff5", kill_on_drop: false }`
[INFO] [stdout] 069d9f8545f79f59c6d201d16c6bb148d5fcb982749c9132d0c1da1951438ff5
[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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 6a236c625addfd2d7fac914727d12528baa5280c456c1fe2fa6698470801450d
[INFO] running `Command { std: "docker" "start" "-a" "6a236c625addfd2d7fac914727d12528baa5280c456c1fe2fa6698470801450d", kill_on_drop: false }`
[INFO] [stderr]    Compiling maximum-number-of-balloons-parallel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solution_seq.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]  --> src/solution_seq.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 7 |   pub fn solve(
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "6a236c625addfd2d7fac914727d12528baa5280c456c1fe2fa6698470801450d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a236c625addfd2d7fac914727d12528baa5280c456c1fe2fa6698470801450d", kill_on_drop: false }`
[INFO] [stdout] 6a236c625addfd2d7fac914727d12528baa5280c456c1fe2fa6698470801450d
[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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 2e7bcfe7bbfc2343088d9af1a3541384fa65dc9b5a6d9ebe29bcfea93e34a299
[INFO] running `Command { std: "docker" "start" "-a" "2e7bcfe7bbfc2343088d9af1a3541384fa65dc9b5a6d9ebe29bcfea93e34a299", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/solution_seq.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `solve` is never used
[INFO] [stderr]  --> src/solution_seq.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 7 |   pub fn solve(
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `maximum-number-of-balloons-parallel` (bin "maximum-number-of-balloons-parallel" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/maximum_number_of_balloons_parallel-01ec289cfa5f26c1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e7bcfe7bbfc2343088d9af1a3541384fa65dc9b5a6d9ebe29bcfea93e34a299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e7bcfe7bbfc2343088d9af1a3541384fa65dc9b5a6d9ebe29bcfea93e34a299", kill_on_drop: false }`
[INFO] [stdout] 2e7bcfe7bbfc2343088d9af1a3541384fa65dc9b5a6d9ebe29bcfea93e34a299