[INFO] cloning repository https://github.com/steven-mathew/sapphire
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steven-mathew/sapphire" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteven-mathew%2Fsapphire", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteven-mathew%2Fsapphire'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 072624396aea323fb15b9f0ca0c3591e5de92637
[INFO] testing steven-mathew/sapphire against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteven-mathew%2Fsapphire" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steven-mathew/sapphire on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steven-mathew/sapphire
[INFO] finished tweaking git repo https://github.com/steven-mathew/sapphire
[INFO] tweaked toml for git repo https://github.com/steven-mathew/sapphire written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/steven-mathew/sapphire already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 699c9ea735abed1be3299bb93530f0053a9edab7cf1f49024ffa92a5d94f864b
[INFO] running `Command { std: "docker" "start" "-a" "699c9ea735abed1be3299bb93530f0053a9edab7cf1f49024ffa92a5d94f864b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699c9ea735abed1be3299bb93530f0053a9edab7cf1f49024ffa92a5d94f864b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699c9ea735abed1be3299bb93530f0053a9edab7cf1f49024ffa92a5d94f864b", kill_on_drop: false }`
[INFO] [stdout] 699c9ea735abed1be3299bb93530f0053a9edab7cf1f49024ffa92a5d94f864b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c0b268512f76117e7021fb023bc3b5d7050c14841dd450360b39a9769d6488
[INFO] running `Command { std: "docker" "start" "-a" "85c0b268512f76117e7021fb023bc3b5d7050c14841dd450360b39a9769d6488", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sapphire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::read_to_string`
[INFO] [stdout]  --> src/main.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs::read_to_string};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "85c0b268512f76117e7021fb023bc3b5d7050c14841dd450360b39a9769d6488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c0b268512f76117e7021fb023bc3b5d7050c14841dd450360b39a9769d6488", kill_on_drop: false }`
[INFO] [stdout] 85c0b268512f76117e7021fb023bc3b5d7050c14841dd450360b39a9769d6488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab9e2021a058a2af15df9cacfaf567d918e3adb35974f15e936c81dd40e83ead
[INFO] running `Command { std: "docker" "start" "-a" "ab9e2021a058a2af15df9cacfaf567d918e3adb35974f15e936c81dd40e83ead", kill_on_drop: false }`
[INFO] [stderr]    Compiling sapphire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::read_to_string`
[INFO] [stdout]  --> src/main.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs::read_to_string};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "ab9e2021a058a2af15df9cacfaf567d918e3adb35974f15e936c81dd40e83ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9e2021a058a2af15df9cacfaf567d918e3adb35974f15e936c81dd40e83ead", kill_on_drop: false }`
[INFO] [stdout] ab9e2021a058a2af15df9cacfaf567d918e3adb35974f15e936c81dd40e83ead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5154fa20484ae263545692024ccccc1073eac582a99b368a70dbed1d706bb719
[INFO] running `Command { std: "docker" "start" "-a" "5154fa20484ae263545692024ccccc1073eac582a99b368a70dbed1d706bb719", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `fs::read_to_string`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:1:33
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 1 | use std::{collections::HashMap, fs::read_to_string};
[INFO] [stdout] 
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sapphire` (bin "sapphire" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sapphire-244d2c0a4df9cd25)
[INFO] running `Command { std: "docker" "inspect" "5154fa20484ae263545692024ccccc1073eac582a99b368a70dbed1d706bb719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5154fa20484ae263545692024ccccc1073eac582a99b368a70dbed1d706bb719", kill_on_drop: false }`
[INFO] [stdout] 5154fa20484ae263545692024ccccc1073eac582a99b368a70dbed1d706bb719