[INFO] fetching crate wasper 0.1.3...
[INFO] building wasper-0.1.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate wasper 0.1.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate wasper 0.1.3
[INFO] finished tweaking crates.io crate wasper 0.1.3
[INFO] tweaked toml for crates.io crate wasper 0.1.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasper 0.1.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wasper 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 277ece1d8981d660400572a3fe97698aa40d3668f1146fb15fcd50871a3052f4
[INFO] running `Command { std: "docker" "start" "-a" "277ece1d8981d660400572a3fe97698aa40d3668f1146fb15fcd50871a3052f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "277ece1d8981d660400572a3fe97698aa40d3668f1146fb15fcd50871a3052f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277ece1d8981d660400572a3fe97698aa40d3668f1146fb15fcd50871a3052f4", kill_on_drop: false }`
[INFO] [stdout] 277ece1d8981d660400572a3fe97698aa40d3668f1146fb15fcd50871a3052f4
[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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 900d34d9d403f632b12dc07a22dbed01ed9616a3a48705da9a11661df48409b4
[INFO] running `Command { std: "docker" "start" "-a" "900d34d9d403f632b12dc07a22dbed01ed9616a3a48705da9a11661df48409b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling opt_vec v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling wasper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Float` is never used
[INFO] [stdout]    --> src/exec/value.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub(crate) trait Float: Clone + Copy + PartialEq + PartialOrd {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:515:43
[INFO] [stdout]     |
[INFO] [stdout] 515 |             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 515 -             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout] 515 +             stack.cvtop(|v: f32| unsafe { f32::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:518:43
[INFO] [stdout]     |
[INFO] [stdout] 518 |             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 518 -             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout] 518 +             stack.cvtop(|v: f64| unsafe { f64::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:521:43
[INFO] [stdout]     |
[INFO] [stdout] 521 |             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 521 -             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout] 521 +             stack.cvtop(|v: i32| unsafe { f32::from_bits(i32::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:524:43
[INFO] [stdout]     |
[INFO] [stdout] 524 |             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 524 -             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout] 524 +             stack.cvtop(|v: i64| unsafe { f64::from_bits(i64::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "900d34d9d403f632b12dc07a22dbed01ed9616a3a48705da9a11661df48409b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900d34d9d403f632b12dc07a22dbed01ed9616a3a48705da9a11661df48409b4", kill_on_drop: false }`
[INFO] [stdout] 900d34d9d403f632b12dc07a22dbed01ed9616a3a48705da9a11661df48409b4
[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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90cf6b630272e0f0f28f9be86fae68f8135d092d4446c85ee4b98ba3ef4e279d
[INFO] running `Command { std: "docker" "start" "-a" "90cf6b630272e0f0f28f9be86fae68f8135d092d4446c85ee4b98ba3ef4e279d", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling serde v1.0.181
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: trait `Float` is never used
[INFO] [stdout]    --> src/exec/value.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub(crate) trait Float: Clone + Copy + PartialEq + PartialOrd {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:515:43
[INFO] [stdout]     |
[INFO] [stdout] 515 |             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 515 -             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout] 515 +             stack.cvtop(|v: f32| unsafe { f32::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:518:43
[INFO] [stdout]     |
[INFO] [stdout] 518 |             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 518 -             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout] 518 +             stack.cvtop(|v: f64| unsafe { f64::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:521:43
[INFO] [stdout]     |
[INFO] [stdout] 521 |             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 521 -             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout] 521 +             stack.cvtop(|v: i32| unsafe { f32::from_bits(i32::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:524:43
[INFO] [stdout]     |
[INFO] [stdout] 524 |             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 524 -             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout] 524 +             stack.cvtop(|v: i64| unsafe { f64::from_bits(i64::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-encoder v0.31.1
[INFO] [stderr]    Compiling regex-automata v0.3.4
[INFO] [stderr]    Compiling wast v62.0.1
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling wat v1.0.69
[INFO] [stderr]    Compiling wasper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Float` is never used
[INFO] [stdout]    --> src/exec/value.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub(crate) trait Float: Clone + Copy + PartialEq + PartialOrd {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:515:43
[INFO] [stdout]     |
[INFO] [stdout] 515 |             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 515 -             stack.cvtop(|v: f32| unsafe { core::mem::transmute::<f32, i32>(v) })
[INFO] [stdout] 515 +             stack.cvtop(|v: f32| unsafe { f32::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:518:43
[INFO] [stdout]     |
[INFO] [stdout] 518 |             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 518 -             stack.cvtop(|v: f64| unsafe { core::mem::transmute::<f64, i64>(v) })
[INFO] [stdout] 518 +             stack.cvtop(|v: f64| unsafe { f64::to_bits(v).cast_signed() })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:521:43
[INFO] [stdout]     |
[INFO] [stdout] 521 |             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 521 -             stack.cvtop(|v: i32| unsafe { core::mem::transmute::<i32, f32>(v) })
[INFO] [stdout] 521 +             stack.cvtop(|v: i32| unsafe { f32::from_bits(i32::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/exec/instr.rs:524:43
[INFO] [stdout]     |
[INFO] [stdout] 524 |             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 524 -             stack.cvtop(|v: i64| unsafe { core::mem::transmute::<i64, f64>(v) })
[INFO] [stdout] 524 +             stack.cvtop(|v: i64| unsafe { f64::from_bits(i64::cast_unsigned(v)) })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.16s
[INFO] running `Command { std: "docker" "inspect" "90cf6b630272e0f0f28f9be86fae68f8135d092d4446c85ee4b98ba3ef4e279d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90cf6b630272e0f0f28f9be86fae68f8135d092d4446c85ee4b98ba3ef4e279d", kill_on_drop: false }`
[INFO] [stdout] 90cf6b630272e0f0f28f9be86fae68f8135d092d4446c85ee4b98ba3ef4e279d