[INFO] fetching crate fw_env 0.1.0...
[INFO] testing fw_env-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate fw_env 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate fw_env 0.1.0
[INFO] finished tweaking crates.io crate fw_env 0.1.0
[INFO] tweaked toml for crates.io crate fw_env 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fw_env 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding crc v1.8.1 (available: v3.4.0)
[INFO] [stderr]       Adding scan_fmt v0.1.3 (available: v0.2.6)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 75e3e6ffb2887d701dbcdaa67bf84ee583320a8ce5499dc9d33cff3d04228a08
[INFO] running `Command { std: "docker" "start" "-a" "75e3e6ffb2887d701dbcdaa67bf84ee583320a8ce5499dc9d33cff3d04228a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75e3e6ffb2887d701dbcdaa67bf84ee583320a8ce5499dc9d33cff3d04228a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e3e6ffb2887d701dbcdaa67bf84ee583320a8ce5499dc9d33cff3d04228a08", kill_on_drop: false }`
[INFO] [stdout] 75e3e6ffb2887d701dbcdaa67bf84ee583320a8ce5499dc9d33cff3d04228a08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3ab53ebbbb1fcf2bff1bc7cdc32a1f9ac25e3684dc0bc3d41a19328e411de22c
[INFO] running `Command { std: "docker" "start" "-a" "3ab53ebbbb1fcf2bff1bc7cdc32a1f9ac25e3684dc0bc3d41a19328e411de22c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling scan_fmt v0.1.3
[INFO] [stderr]    Compiling fw_env v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 129 -         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout] 129 +         let refcrc: u32 = unsafe { u32::from_ne_bytes([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "3ab53ebbbb1fcf2bff1bc7cdc32a1f9ac25e3684dc0bc3d41a19328e411de22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ab53ebbbb1fcf2bff1bc7cdc32a1f9ac25e3684dc0bc3d41a19328e411de22c", kill_on_drop: false }`
[INFO] [stdout] 3ab53ebbbb1fcf2bff1bc7cdc32a1f9ac25e3684dc0bc3d41a19328e411de22c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1e7ebd432f95d8888cfe197b1f4e65f2cf9ab34ada230ac703bf6edbeb0f9b61
[INFO] running `Command { std: "docker" "start" "-a" "1e7ebd432f95d8888cfe197b1f4e65f2cf9ab34ada230ac703bf6edbeb0f9b61", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 129 -         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout] 129 +         let refcrc: u32 = unsafe { u32::from_ne_bytes([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fw_env v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 129 -         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout] 129 +         let refcrc: u32 = unsafe { u32::from_ne_bytes([block[0], block[1], block[2], block[3]]) };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "1e7ebd432f95d8888cfe197b1f4e65f2cf9ab34ada230ac703bf6edbeb0f9b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e7ebd432f95d8888cfe197b1f4e65f2cf9ab34ada230ac703bf6edbeb0f9b61", kill_on_drop: false }`
[INFO] [stdout] 1e7ebd432f95d8888cfe197b1f4e65f2cf9ab34ada230ac703bf6edbeb0f9b61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2cd4295ea0931210eda3c32e881daee1c3914570ecc54f359fe5c00cc35f58c3
[INFO] running `Command { std: "docker" "start" "-a" "2cd4295ea0931210eda3c32e881daee1c3914570ecc54f359fe5c00cc35f58c3", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]    --> src/lib.rs:129:36
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stderr]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] help: replace this with
[INFO] [stderr]     |
[INFO] [stderr] 129 -         let refcrc: u32 = unsafe { std::mem::transmute([block[0], block[1], block[2], block[3]]) };
[INFO] [stderr] 129 +         let refcrc: u32 = unsafe { u32::from_ne_bytes([block[0], block[1], block[2], block[3]]) };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `fw_env` (lib) generated 1 warning (run `cargo fix --lib -p fw_env` to apply 1 suggestion)
[INFO] [stderr] warning: `fw_env` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fw_env-212c46fd7d3b004c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_config_from_file ... ok
[INFO] [stdout] test tests::test_fwenv_find_var ... ok
[INFO] [stdout] test tests::test_fwenv_read_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fw_env
[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" "2cd4295ea0931210eda3c32e881daee1c3914570ecc54f359fe5c00cc35f58c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd4295ea0931210eda3c32e881daee1c3914570ecc54f359fe5c00cc35f58c3", kill_on_drop: false }`
[INFO] [stdout] 2cd4295ea0931210eda3c32e881daee1c3914570ecc54f359fe5c00cc35f58c3