[INFO] fetching crate handletree-rs 0.2.0...
[INFO] testing handletree-rs-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate handletree-rs 0.2.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate handletree-rs 0.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate handletree-rs 0.2.0
[INFO] finished tweaking crates.io crate handletree-rs 0.2.0
[INFO] tweaked toml for crates.io crate handletree-rs 0.2.0 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a81fc03c2516f86e14b1e10cf789cf0cb2f6da0e977d51f0a08294968b7f4cc3
[INFO] running `Command { std: "docker" "start" "-a" "a81fc03c2516f86e14b1e10cf789cf0cb2f6da0e977d51f0a08294968b7f4cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a81fc03c2516f86e14b1e10cf789cf0cb2f6da0e977d51f0a08294968b7f4cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81fc03c2516f86e14b1e10cf789cf0cb2f6da0e977d51f0a08294968b7f4cc3", kill_on_drop: false }`
[INFO] [stdout] a81fc03c2516f86e14b1e10cf789cf0cb2f6da0e977d51f0a08294968b7f4cc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e01da99bd192063036c87d585548e801431e029ea48f0ff908822de08e00d1c
[INFO] running `Command { std: "docker" "start" "-a" "8e01da99bd192063036c87d585548e801431e029ea48f0ff908822de08e00d1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling handletree-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     let mut jambojuice = &mut self.freed[..];
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 0.90s
[INFO] running `Command { std: "docker" "inspect" "8e01da99bd192063036c87d585548e801431e029ea48f0ff908822de08e00d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e01da99bd192063036c87d585548e801431e029ea48f0ff908822de08e00d1c", kill_on_drop: false }`
[INFO] [stdout] 8e01da99bd192063036c87d585548e801431e029ea48f0ff908822de08e00d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81e2ad212e8f9c064244497bfd3f2505cba76d48c0f160e11cfc8a70c57396c7
[INFO] running `Command { std: "docker" "start" "-a" "81e2ad212e8f9c064244497bfd3f2505cba76d48c0f160e11cfc8a70c57396c7", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     let mut jambojuice = &mut self.freed[..];
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling handletree-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     let mut jambojuice = &mut self.freed[..];
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 0.71s
[INFO] running `Command { std: "docker" "inspect" "81e2ad212e8f9c064244497bfd3f2505cba76d48c0f160e11cfc8a70c57396c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e2ad212e8f9c064244497bfd3f2505cba76d48c0f160e11cfc8a70c57396c7", kill_on_drop: false }`
[INFO] [stdout] 81e2ad212e8f9c064244497bfd3f2505cba76d48c0f160e11cfc8a70c57396c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56085c42df59bd51ed5d1fc0ed3df560d7621713c48445b068e079b611ecb7fd
[INFO] running `Command { std: "docker" "start" "-a" "56085c42df59bd51ed5d1fc0ed3df560d7621713c48445b068e079b611ecb7fd", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:133:25
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     let mut jambojuice = &mut self.freed[..];
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `handletree-rs` (lib) generated 1 warning
[INFO] [stderr] warning: `handletree-rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/handlemanager-ba54f8189ec71fa0)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::basic_recycling ... ok
[INFO] [stdout] test test::double_free ... ok
[INFO] [stdout] test test::simplest_use ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests handlemanager
[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" "56085c42df59bd51ed5d1fc0ed3df560d7621713c48445b068e079b611ecb7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56085c42df59bd51ed5d1fc0ed3df560d7621713c48445b068e079b611ecb7fd", kill_on_drop: false }`
[INFO] [stdout] 56085c42df59bd51ed5d1fc0ed3df560d7621713c48445b068e079b611ecb7fd
