[INFO] fetching crate simple-interner 0.3.4...
[INFO] testing simple-interner-0.3.4 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate simple-interner 0.3.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate simple-interner 0.3.4
[INFO] finished tweaking crates.io crate simple-interner 0.3.4
[INFO] tweaked toml for crates.io crate simple-interner 0.3.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-interner 0.3.4 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding hash32 v0.3.1 (available: v1.0.0)
[INFO] [stderr]       Adding hashbrown v0.13.2 (available: v0.17.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c1be34b0a372fe540261d8d5864b10264e3db5a9f941bee54bc8a7fa886a8f
[INFO] running `Command { std: "docker" "start" "-a" "03c1be34b0a372fe540261d8d5864b10264e3db5a9f941bee54bc8a7fa886a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c1be34b0a372fe540261d8d5864b10264e3db5a9f941bee54bc8a7fa886a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c1be34b0a372fe540261d8d5864b10264e3db5a9f941bee54bc8a7fa886a8f", kill_on_drop: false }`
[INFO] [stdout] 03c1be34b0a372fe540261d8d5864b10264e3db5a9f941bee54bc8a7fa886a8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e0ad7487402fa8e7c1d5293cb5c4361b6bcd7e08806fa19f05a4d13b48dd1d2
[INFO] running `Command { std: "docker" "start" "-a" "8e0ad7487402fa8e7c1d5293cb5c4361b6bcd7e08806fa19f05a4d13b48dd1d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-interner v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/interner.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Box::from_raw(self.ptr.as_ptr())
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]    |             +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "8e0ad7487402fa8e7c1d5293cb5c4361b6bcd7e08806fa19f05a4d13b48dd1d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0ad7487402fa8e7c1d5293cb5c4361b6bcd7e08806fa19f05a4d13b48dd1d2", kill_on_drop: false }`
[INFO] [stdout] 8e0ad7487402fa8e7c1d5293cb5c4361b6bcd7e08806fa19f05a4d13b48dd1d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe5480cd50a440b3384c0823b906ba3a2c13641cbcf6a443c7d09a997a993c45
[INFO] running `Command { std: "docker" "start" "-a" "fe5480cd50a440b3384c0823b906ba3a2c13641cbcf6a443c7d09a997a993c45", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/interner.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Box::from_raw(self.ptr.as_ptr())
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]    |             +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling simple-interner v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/interner.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Box::from_raw(self.ptr.as_ptr())
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]    |             +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "fe5480cd50a440b3384c0823b906ba3a2c13641cbcf6a443c7d09a997a993c45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5480cd50a440b3384c0823b906ba3a2c13641cbcf6a443c7d09a997a993c45", kill_on_drop: false }`
[INFO] [stdout] fe5480cd50a440b3384c0823b906ba3a2c13641cbcf6a443c7d09a997a993c45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a392022ef72a157778da0847d3841f31f7bb99f01009d05f390671cfa7c0fcf
[INFO] running `Command { std: "docker" "start" "-a" "8a392022ef72a157778da0847d3841f31f7bb99f01009d05f390671cfa7c0fcf", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stderr]   --> src/interner.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             Box::from_raw(self.ptr.as_ptr())
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stderr]    |             +++++++                                 +
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-interner` (lib) generated 1 warning
[INFO] [stderr] warning: `simple-interner` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_interner-2b42458756544312)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::slice_usage ... ok
[INFO] [stdout] test tests::str_usage ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_interner
[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" "8a392022ef72a157778da0847d3841f31f7bb99f01009d05f390671cfa7c0fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a392022ef72a157778da0847d3841f31f7bb99f01009d05f390671cfa7c0fcf", kill_on_drop: false }`
[INFO] [stdout] 8a392022ef72a157778da0847d3841f31f7bb99f01009d05f390671cfa7c0fcf