[INFO] cloning repository https://github.com/quebin31/rsc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quebin31/rsc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Frsc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Frsc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 642e2d9ac592cf6c0a39152fb7cbbcb89a08762a
[INFO] testing quebin31/rsc against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Frsc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quebin31/rsc on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quebin31/rsc
[INFO] finished tweaking git repo https://github.com/quebin31/rsc
[INFO] tweaked toml for git repo https://github.com/quebin31/rsc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/quebin31/rsc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f2fd223d34ae690566bf2a157a58e4e0bc143134f04372a08c1fd6bafce0d7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f2fd223d34ae690566bf2a157a58e4e0bc143134f04372a08c1fd6bafce0d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f2fd223d34ae690566bf2a157a58e4e0bc143134f04372a08c1fd6bafce0d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2fd223d34ae690566bf2a157a58e4e0bc143134f04372a08c1fd6bafce0d7f", kill_on_drop: false }`
[INFO] [stdout] 7f2fd223d34ae690566bf2a157a58e4e0bc143134f04372a08c1fd6bafce0d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 794c60fd3894eaefb8e60e77c50bc0929e5e4ac8072ce74b05fffee4c5f576e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "794c60fd3894eaefb8e60e77c50bc0929e5e4ac8072ce74b05fffee4c5f576e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.16
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.33
[INFO] [stderr]    Compiling aho-corasick v0.7.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling users v0.9.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling os_type v2.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling human-panic v1.0.1
[INFO] [stderr]    Compiling rsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/config.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::fs::{self, File};
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/config.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "794c60fd3894eaefb8e60e77c50bc0929e5e4ac8072ce74b05fffee4c5f576e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "794c60fd3894eaefb8e60e77c50bc0929e5e4ac8072ce74b05fffee4c5f576e0", kill_on_drop: false }`
[INFO] [stdout] 794c60fd3894eaefb8e60e77c50bc0929e5e4ac8072ce74b05fffee4c5f576e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b85f6dab162fffc34fdc6c0dfc3276f4848fae8a5e7bf7709579f3c706775b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7b85f6dab162fffc34fdc6c0dfc3276f4848fae8a5e7bf7709579f3c706775b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]   --> src/config.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 | use std::fs::{self, File};
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/config.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use std::io::Write;
[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 1.20s
[INFO] running `Command { std: "docker" "inspect" "7b85f6dab162fffc34fdc6c0dfc3276f4848fae8a5e7bf7709579f3c706775b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b85f6dab162fffc34fdc6c0dfc3276f4848fae8a5e7bf7709579f3c706775b4", kill_on_drop: false }`
[INFO] [stdout] 7b85f6dab162fffc34fdc6c0dfc3276f4848fae8a5e7bf7709579f3c706775b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7175c6238ba2f29d4d5bd4ce18fc6a1dcc3ffdaede7e1cd935f731c78d5fe510
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7175c6238ba2f29d4d5bd4ce18fc6a1dcc3ffdaede7e1cd935f731c78d5fe510", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]   --> src/config.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::fs::{self, File};
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]   --> src/config.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::io::Write;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rsc-532ee3091a06d52e
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7175c6238ba2f29d4d5bd4ce18fc6a1dcc3ffdaede7e1cd935f731c78d5fe510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7175c6238ba2f29d4d5bd4ce18fc6a1dcc3ffdaede7e1cd935f731c78d5fe510", kill_on_drop: false }`
[INFO] [stdout] 7175c6238ba2f29d4d5bd4ce18fc6a1dcc3ffdaede7e1cd935f731c78d5fe510