[INFO] cloning repository https://github.com/yossan/observer_pattern_sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yossan/observer_pattern_sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyossan%2Fobserver_pattern_sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyossan%2Fobserver_pattern_sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c8c642964484969e1eb3207bf651be119e02337
[INFO] testing yossan/observer_pattern_sample against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyossan%2Fobserver_pattern_sample" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yossan/observer_pattern_sample on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yossan/observer_pattern_sample
[INFO] finished tweaking git repo https://github.com/yossan/observer_pattern_sample
[INFO] tweaked toml for git repo https://github.com/yossan/observer_pattern_sample written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/yossan/observer_pattern_sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23be52eea313a3402e83fc987abd16b4381697d6cfff5d8ae621b0a2989a4def
[INFO] running `Command { std: "docker" "start" "-a" "23be52eea313a3402e83fc987abd16b4381697d6cfff5d8ae621b0a2989a4def", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23be52eea313a3402e83fc987abd16b4381697d6cfff5d8ae621b0a2989a4def", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23be52eea313a3402e83fc987abd16b4381697d6cfff5d8ae621b0a2989a4def", kill_on_drop: false }`
[INFO] [stdout] 23be52eea313a3402e83fc987abd16b4381697d6cfff5d8ae621b0a2989a4def
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20ec34ffb2735b7d4eb75139955b4dba4a0ad27adced23828fc8948430a387f8
[INFO] running `Command { std: "docker" "start" "-a" "20ec34ffb2735b7d4eb75139955b4dba4a0ad27adced23828fc8948430a387f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling observer_pattern_sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `degitobserver`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let degitobserver = DegitObserver;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_degitobserver`
[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 0.47s
[INFO] running `Command { std: "docker" "inspect" "20ec34ffb2735b7d4eb75139955b4dba4a0ad27adced23828fc8948430a387f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ec34ffb2735b7d4eb75139955b4dba4a0ad27adced23828fc8948430a387f8", kill_on_drop: false }`
[INFO] [stdout] 20ec34ffb2735b7d4eb75139955b4dba4a0ad27adced23828fc8948430a387f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2df23e4026e4ffc5033ae14bc85e379dcc256b62a498a114de98003ebe6ea8f
[INFO] running `Command { std: "docker" "start" "-a" "f2df23e4026e4ffc5033ae14bc85e379dcc256b62a498a114de98003ebe6ea8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling observer_pattern_sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `degitobserver`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let degitobserver = DegitObserver;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_degitobserver`
[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 0.32s
[INFO] running `Command { std: "docker" "inspect" "f2df23e4026e4ffc5033ae14bc85e379dcc256b62a498a114de98003ebe6ea8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2df23e4026e4ffc5033ae14bc85e379dcc256b62a498a114de98003ebe6ea8f", kill_on_drop: false }`
[INFO] [stdout] f2df23e4026e4ffc5033ae14bc85e379dcc256b62a498a114de98003ebe6ea8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1895f47ca1be38dba08d5678e41cd5ea3f3e5fd0e697dcc452924130c03ddfb8
[INFO] running `Command { std: "docker" "start" "-a" "1895f47ca1be38dba08d5678e41cd5ea3f3e5fd0e697dcc452924130c03ddfb8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `degitobserver`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let degitobserver = DegitObserver;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_degitobserver`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `observer_pattern_sample` (bin "observer_pattern_sample" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/observer_pattern_sample-890ba361d6383b51)
[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" "1895f47ca1be38dba08d5678e41cd5ea3f3e5fd0e697dcc452924130c03ddfb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1895f47ca1be38dba08d5678e41cd5ea3f3e5fd0e697dcc452924130c03ddfb8", kill_on_drop: false }`
[INFO] [stdout] 1895f47ca1be38dba08d5678e41cd5ea3f3e5fd0e697dcc452924130c03ddfb8