[INFO] fetching crate wasm-compiler 0.0.0...
[INFO] testing wasm-compiler-0.0.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate wasm-compiler 0.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate wasm-compiler 0.0.0
[INFO] finished tweaking crates.io crate wasm-compiler 0.0.0
[INFO] tweaked toml for crates.io crate wasm-compiler 0.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-compiler 0.0.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cstring v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 374a4c60daca85baab55cb872b707d92ccc2b60ac9fe2979fca588776bec0d8a
[INFO] running `Command { std: "docker" "start" "-a" "374a4c60daca85baab55cb872b707d92ccc2b60ac9fe2979fca588776bec0d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "374a4c60daca85baab55cb872b707d92ccc2b60ac9fe2979fca588776bec0d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374a4c60daca85baab55cb872b707d92ccc2b60ac9fe2979fca588776bec0d8a", kill_on_drop: false }`
[INFO] [stdout] 374a4c60daca85baab55cb872b707d92ccc2b60ac9fe2979fca588776bec0d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82249f65377e0f2c39695f02d68d6bfb8a9ac273f9c241c9030645f87aeb951a
[INFO] running `Command { std: "docker" "start" "-a" "82249f65377e0f2c39695f02d68d6bfb8a9ac273f9c241c9030645f87aeb951a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling cstring v0.1.1
[INFO] [stderr]    Compiling wasm-compiler v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/lib.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let len_bytes: [u8; 4] = unsafe { core::mem::transmute(l) };
[INFO] [stdout]    |                                       --------------------^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "82249f65377e0f2c39695f02d68d6bfb8a9ac273f9c241c9030645f87aeb951a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82249f65377e0f2c39695f02d68d6bfb8a9ac273f9c241c9030645f87aeb951a", kill_on_drop: false }`
[INFO] [stdout] 82249f65377e0f2c39695f02d68d6bfb8a9ac273f9c241c9030645f87aeb951a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd980130e23e24e80c4103bec8222021abdaaab9696b2d1b7e19cbefe1ff8d6c
[INFO] running `Command { std: "docker" "start" "-a" "dd980130e23e24e80c4103bec8222021abdaaab9696b2d1b7e19cbefe1ff8d6c", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/lib.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let len_bytes: [u8; 4] = unsafe { core::mem::transmute(l) };
[INFO] [stdout]    |                                       --------------------^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-compiler v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/lib.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let len_bytes: [u8; 4] = unsafe { core::mem::transmute(l) };
[INFO] [stdout]    |                                       --------------------^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "dd980130e23e24e80c4103bec8222021abdaaab9696b2d1b7e19cbefe1ff8d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd980130e23e24e80c4103bec8222021abdaaab9696b2d1b7e19cbefe1ff8d6c", kill_on_drop: false }`
[INFO] [stdout] dd980130e23e24e80c4103bec8222021abdaaab9696b2d1b7e19cbefe1ff8d6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c0b8c451aba57fe0f692a0a243eafc20547cdb80bc5710897b94e501a0492f0
[INFO] running `Command { std: "docker" "start" "-a" "0c0b8c451aba57fe0f692a0a243eafc20547cdb80bc5710897b94e501a0492f0", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]   --> src/lib.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let len_bytes: [u8; 4] = unsafe { core::mem::transmute(l) };
[INFO] [stderr]    |                                       --------------------^^^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: replace this with: `u32::to_ne_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stderr]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `wasm-compiler` (lib) generated 1 warning (run `cargo fix --lib -p wasm-compiler` to apply 1 suggestion)
[INFO] [stderr] warning: `wasm-compiler` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wasm_compiler-5892e35a2dffd20c)
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/wasm_compiler-5892e35a2dffd20c` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "0c0b8c451aba57fe0f692a0a243eafc20547cdb80bc5710897b94e501a0492f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0b8c451aba57fe0f692a0a243eafc20547cdb80bc5710897b94e501a0492f0", kill_on_drop: false }`
[INFO] [stdout] 0c0b8c451aba57fe0f692a0a243eafc20547cdb80bc5710897b94e501a0492f0