[INFO] fetching crate dfu 0.4.2...
[INFO] testing dfu-0.4.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate dfu 0.4.2 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate dfu 0.4.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dfu 0.4.2
[INFO] finished tweaking crates.io crate dfu 0.4.2
[INFO] tweaked toml for crates.io crate dfu 0.4.2 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 951a26cf632d016b4a6610c64a838a7b5056744af94ea3064eb0707ff2875851
[INFO] running `Command { std: "docker" "start" "-a" "951a26cf632d016b4a6610c64a838a7b5056744af94ea3064eb0707ff2875851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "951a26cf632d016b4a6610c64a838a7b5056744af94ea3064eb0707ff2875851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "951a26cf632d016b4a6610c64a838a7b5056744af94ea3064eb0707ff2875851", kill_on_drop: false }`
[INFO] [stdout] 951a26cf632d016b4a6610c64a838a7b5056744af94ea3064eb0707ff2875851
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d78f9956b24060032039f1581f9699af07b937cc3e301f7d15cc6f0d535989cb
[INFO] running `Command { std: "docker" "start" "-a" "d78f9956b24060032039f1581f9699af07b937cc3e301f7d15cc6f0d535989cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysfs-serde v0.2.3
[INFO] [stderr]    Compiling usbapi v0.4.2
[INFO] [stderr]    Compiling dfu v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice::Iter`
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::slice::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut usb =
[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: field is never read: `length`
[INFO] [stdout]   --> src/core.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     length: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `descriptor_type`
[INFO] [stdout]   --> src/core.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     descriptor_type: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/core.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     attributes: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `detach_timeout`
[INFO] [stdout]   --> src/core.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     detach_timeout: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dfu_version`
[INFO] [stdout]   --> src/core.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     dfu_version: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "d78f9956b24060032039f1581f9699af07b937cc3e301f7d15cc6f0d535989cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78f9956b24060032039f1581f9699af07b937cc3e301f7d15cc6f0d535989cb", kill_on_drop: false }`
[INFO] [stdout] d78f9956b24060032039f1581f9699af07b937cc3e301f7d15cc6f0d535989cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4a65726819b579eec0c524464287777ec94d253a770ae3d0fda0f203a08e47
[INFO] running `Command { std: "docker" "start" "-a" "de4a65726819b579eec0c524464287777ec94d253a770ae3d0fda0f203a08e47", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `std::slice::Iter`
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::slice::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut usb =
[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: field is never read: `length`
[INFO] [stdout]   --> src/core.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     length: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `descriptor_type`
[INFO] [stdout]   --> src/core.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     descriptor_type: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/core.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     attributes: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `detach_timeout`
[INFO] [stdout]   --> src/core.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     detach_timeout: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dfu_version`
[INFO] [stdout]   --> src/core.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     dfu_version: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dfu v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice::Iter`
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::slice::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let mut usb =
[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: field is never read: `length`
[INFO] [stdout]   --> src/core.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     length: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `descriptor_type`
[INFO] [stdout]   --> src/core.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     descriptor_type: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attributes`
[INFO] [stdout]   --> src/core.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     attributes: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `detach_timeout`
[INFO] [stdout]   --> src/core.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     detach_timeout: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dfu_version`
[INFO] [stdout]   --> src/core.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     dfu_version: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/dfu-29587bc6b8c63c67)
[INFO] running `Command { std: "docker" "inspect" "de4a65726819b579eec0c524464287777ec94d253a770ae3d0fda0f203a08e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4a65726819b579eec0c524464287777ec94d253a770ae3d0fda0f203a08e47", kill_on_drop: false }`
[INFO] [stdout] de4a65726819b579eec0c524464287777ec94d253a770ae3d0fda0f203a08e47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3265c627cb542cf8b1671468a722e796751a764700e82cd9ebbf6111f9ba65f6
[INFO] running `Command { std: "docker" "start" "-a" "3265c627cb542cf8b1671468a722e796751a764700e82cd9ebbf6111f9ba65f6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::slice::Iter`
[INFO] [stderr]  --> src/core.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::slice::Iter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/core.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |         let mut usb =
[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: field is never read: `length`
[INFO] [stderr]   --> src/core.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     length: u8,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `descriptor_type`
[INFO] [stderr]   --> src/core.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     descriptor_type: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attributes`
[INFO] [stderr]   --> src/core.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     attributes: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `detach_timeout`
[INFO] [stderr]   --> src/core.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     detach_timeout: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `dfu_version`
[INFO] [stderr]   --> src/core.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     dfu_version: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dfu` (lib) generated 7 warnings
[INFO] [stderr] warning: `dfu` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dfu-29587bc6b8c63c67)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test dfuse_command::tests::test_dfuse_command ... ok
[INFO] [stdout] test memory_layout::tests::test_memory_num_pages ... ok
[INFO] [stdout] test memory_layout::tests::test_memory_from ... ok
[INFO] [stdout] test memory_layout::tests::test_memory_address ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dfu
[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" "3265c627cb542cf8b1671468a722e796751a764700e82cd9ebbf6111f9ba65f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3265c627cb542cf8b1671468a722e796751a764700e82cd9ebbf6111f9ba65f6", kill_on_drop: false }`
[INFO] [stdout] 3265c627cb542cf8b1671468a722e796751a764700e82cd9ebbf6111f9ba65f6