[INFO] fetching crate serde_wxf 0.0.1...
[INFO] testing serde_wxf-0.0.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate serde_wxf 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate serde_wxf 0.0.1
[INFO] finished tweaking crates.io crate serde_wxf 0.0.1
[INFO] tweaked toml for crates.io crate serde_wxf 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_wxf 0.0.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding wolfram_wxf v0.5.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b3034f389c8a19996f8eb7da88fdb7c733cfb142eff49480d03ecbb4f055e86
[INFO] running `Command { std: "docker" "start" "-a" "7b3034f389c8a19996f8eb7da88fdb7c733cfb142eff49480d03ecbb4f055e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3034f389c8a19996f8eb7da88fdb7c733cfb142eff49480d03ecbb4f055e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3034f389c8a19996f8eb7da88fdb7c733cfb142eff49480d03ecbb4f055e86", kill_on_drop: false }`
[INFO] [stdout] 7b3034f389c8a19996f8eb7da88fdb7c733cfb142eff49480d03ecbb4f055e86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6894a06056e1d5f7380b2f909ce15d7e203cfa8bb45bb8031cd68a78f36f8ab8
[INFO] running `Command { std: "docker" "start" "-a" "6894a06056e1d5f7380b2f909ce15d7e203cfa8bb45bb8031cd68a78f36f8ab8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling wolfram_wxf v0.5.0
[INFO] [stderr]    Compiling serde_wxf v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "6894a06056e1d5f7380b2f909ce15d7e203cfa8bb45bb8031cd68a78f36f8ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6894a06056e1d5f7380b2f909ce15d7e203cfa8bb45bb8031cd68a78f36f8ab8", kill_on_drop: false }`
[INFO] [stdout] 6894a06056e1d5f7380b2f909ce15d7e203cfa8bb45bb8031cd68a78f36f8ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e754875ff5efc6668d9c15cc7b37b2bc6e94945fde83f789cd471dd5f6a3f669
[INFO] running `Command { std: "docker" "start" "-a" "e754875ff5efc6668d9c15cc7b37b2bc6e94945fde83f789cd471dd5f6a3f669", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_wxf v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ser/sequence.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn end(mut self) -> Result<()> {
[INFO] [stdout]    |            ----^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "e754875ff5efc6668d9c15cc7b37b2bc6e94945fde83f789cd471dd5f6a3f669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e754875ff5efc6668d9c15cc7b37b2bc6e94945fde83f789cd471dd5f6a3f669", kill_on_drop: false }`
[INFO] [stdout] e754875ff5efc6668d9c15cc7b37b2bc6e94945fde83f789cd471dd5f6a3f669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b17a6a42e2801ce41c36f68781582d5c41f052cfa46d6eb3d22f50fa11e5799
[INFO] running `Command { std: "docker" "start" "-a" "6b17a6a42e2801ce41c36f68781582d5c41f052cfa46d6eb3d22f50fa11e5799", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ser/sequence.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn end(mut self) -> Result<()> {
[INFO] [stderr]    |            ----^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ser/sequence.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn end(mut self) -> Result<()> {
[INFO] [stderr]    |            ----^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ser/sequence.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn end(mut self) -> Result<()> {
[INFO] [stderr]    |            ----^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ser/sequence.rs:85:12
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn end(mut self) -> Result<()> {
[INFO] [stderr]    |            ----^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_wxf` (lib) generated 4 warnings (run `cargo fix --lib -p serde_wxf` to apply 4 suggestions)
[INFO] [stderr] warning: `serde_wxf` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_wxf-49d32e271e322fcf)
[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] [stderr]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-c4760c1009a3f88e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test main ... ok
[INFO] [stdout] test test_struct ... ok
[INFO] [stdout] test test_list ... ok
[INFO] [stdout] test test_prim ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_wxf
[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" "6b17a6a42e2801ce41c36f68781582d5c41f052cfa46d6eb3d22f50fa11e5799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b17a6a42e2801ce41c36f68781582d5c41f052cfa46d6eb3d22f50fa11e5799", kill_on_drop: false }`
[INFO] [stdout] 6b17a6a42e2801ce41c36f68781582d5c41f052cfa46d6eb3d22f50fa11e5799