[INFO] cloning repository https://github.com/sile/trial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sile/trial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Ftrial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Ftrial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f351d697dab4d9087efd1af72c598bb5fa9dbafe
[INFO] testing sile/trial against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Ftrial" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/trial on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sile/trial
[INFO] finished tweaking git repo https://github.com/sile/trial
[INFO] tweaked toml for git repo https://github.com/sile/trial written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/trial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e3818f8ce73c8dd068a8fb9e15313fd946b59caa55ea36dd49e68a6a5c179d13
[INFO] running `Command { std: "docker" "start" "-a" "e3818f8ce73c8dd068a8fb9e15313fd946b59caa55ea36dd49e68a6a5c179d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3818f8ce73c8dd068a8fb9e15313fd946b59caa55ea36dd49e68a6a5c179d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3818f8ce73c8dd068a8fb9e15313fd946b59caa55ea36dd49e68a6a5c179d13", kill_on_drop: false }`
[INFO] [stdout] e3818f8ce73c8dd068a8fb9e15313fd946b59caa55ea36dd49e68a6a5c179d13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2a2387ec0d4c56c9dbe9b5e0baa601a5d9eb613f2d0637ae44065442eab6ca5
[INFO] running `Command { std: "docker" "start" "-a" "c2a2387ec0d4c56c9dbe9b5e0baa601a5d9eb613f2d0637ae44065442eab6ca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling structopt v0.3.17
[INFO] [stderr]    Compiling trial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]   --> src/run.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let record = self.execute_command()?;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 56.11s
[INFO] running `Command { std: "docker" "inspect" "c2a2387ec0d4c56c9dbe9b5e0baa601a5d9eb613f2d0637ae44065442eab6ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a2387ec0d4c56c9dbe9b5e0baa601a5d9eb613f2d0637ae44065442eab6ca5", kill_on_drop: false }`
[INFO] [stdout] c2a2387ec0d4c56c9dbe9b5e0baa601a5d9eb613f2d0637ae44065442eab6ca5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb4695f1b64aacb0cd8ac182765071c7de351e7134bdd57fb2aa56a03511cce4
[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" "fb4695f1b64aacb0cd8ac182765071c7de351e7134bdd57fb2aa56a03511cce4", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]   --> src/run.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let record = self.execute_command()?;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling trial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]   --> src/run.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let record = self.execute_command()?;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 1.40s
[INFO] running `Command { std: "docker" "inspect" "fb4695f1b64aacb0cd8ac182765071c7de351e7134bdd57fb2aa56a03511cce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4695f1b64aacb0cd8ac182765071c7de351e7134bdd57fb2aa56a03511cce4", kill_on_drop: false }`
[INFO] [stdout] fb4695f1b64aacb0cd8ac182765071c7de351e7134bdd57fb2aa56a03511cce4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 176e26b3847a491c325c98e38b9b5a3aae7f25f5d612a065447d821118a19e6f
[INFO] running `Command { std: "docker" "start" "-a" "176e26b3847a491c325c98e38b9b5a3aae7f25f5d612a065447d821118a19e6f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `record`
[INFO] [stderr]   --> src/run.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let record = self.execute_command()?;
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `record`
[INFO] [stderr]   --> src/run.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let record = self.execute_command()?;
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trial-24d8bef060658e9c
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trial-afc79f982d180dcf
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests trial
[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] [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] [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" "176e26b3847a491c325c98e38b9b5a3aae7f25f5d612a065447d821118a19e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176e26b3847a491c325c98e38b9b5a3aae7f25f5d612a065447d821118a19e6f", kill_on_drop: false }`
[INFO] [stdout] 176e26b3847a491c325c98e38b9b5a3aae7f25f5d612a065447d821118a19e6f