[INFO] cloning repository https://github.com/reccanti/ProjectEuler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reccanti/ProjectEuler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freccanti%2FProjectEuler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freccanti%2FProjectEuler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e50d0dcc61a844d09f1212af9730dd874a6ffdd8
[INFO] building reccanti/ProjectEuler against master#c52b9c10bfb5164015eb977ff498e0597ae63eb1 for pr-97025
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freccanti%2FProjectEuler" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reccanti/ProjectEuler on toolchain c52b9c10bfb5164015eb977ff498e0597ae63eb1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reccanti/ProjectEuler
[INFO] finished tweaking git repo https://github.com/reccanti/ProjectEuler
[INFO] tweaked toml for git repo https://github.com/reccanti/ProjectEuler written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/reccanti/ProjectEuler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a239a00ea8d0d8b0399855a7fb79fe853e9ec637881c34dcedce74245bc45eae
[INFO] running `Command { std: "docker" "start" "-a" "a239a00ea8d0d8b0399855a7fb79fe853e9ec637881c34dcedce74245bc45eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a239a00ea8d0d8b0399855a7fb79fe853e9ec637881c34dcedce74245bc45eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a239a00ea8d0d8b0399855a7fb79fe853e9ec637881c34dcedce74245bc45eae", kill_on_drop: false }`
[INFO] [stdout] a239a00ea8d0d8b0399855a7fb79fe853e9ec637881c34dcedce74245bc45eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cc739f24886d63c1829c96717349cf9330710699eb8a179d5750933bc2a57e8
[INFO] running `Command { std: "docker" "start" "-a" "8cc739f24886d63c1829c96717349cf9330710699eb8a179d5750933bc2a57e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling problem_1 v0.1.0 (/opt/rustwide/workdir/problem_1)
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> problem_1/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_sum_three_five_multiples`
[INFO] [stdout]  --> problem_1/src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn get_sum_three_five_multiples(start: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling problem_2 v0.1.0 (/opt/rustwide/workdir/problem_2)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> problem_2/src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, SystemTime};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> problem_2/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `naive_sum_even_fibonacci`
[INFO] [stdout]   --> problem_2/src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn naive_sum_even_fibonacci (amount: u32) -> BigUint {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `Command { std: "docker" "inspect" "8cc739f24886d63c1829c96717349cf9330710699eb8a179d5750933bc2a57e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc739f24886d63c1829c96717349cf9330710699eb8a179d5750933bc2a57e8", kill_on_drop: false }`
[INFO] [stdout] 8cc739f24886d63c1829c96717349cf9330710699eb8a179d5750933bc2a57e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c52b9c10bfb5164015eb977ff498e0597ae63eb1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee8ccb323c20203241a3ddc2769f0a07310b76202bc51e2c38e8c8fa498d5711
[INFO] running `Command { std: "docker" "start" "-a" "ee8ccb323c20203241a3ddc2769f0a07310b76202bc51e2c38e8c8fa498d5711", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling problem_1 v0.1.0 (/opt/rustwide/workdir/problem_1)
[INFO] [stderr]    Compiling problem_2 v0.1.0 (/opt/rustwide/workdir/problem_2)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> problem_2/src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, SystemTime};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> problem_2/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.40s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/problem_1-f669c16684d7647f)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/problem_2-7ce25da5a256eefc)
[INFO] running `Command { std: "docker" "inspect" "ee8ccb323c20203241a3ddc2769f0a07310b76202bc51e2c38e8c8fa498d5711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8ccb323c20203241a3ddc2769f0a07310b76202bc51e2c38e8c8fa498d5711", kill_on_drop: false }`
[INFO] [stdout] ee8ccb323c20203241a3ddc2769f0a07310b76202bc51e2c38e8c8fa498d5711