[INFO] fetching crate pco 0.4.6...
[INFO] building pco-0.4.6 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate pco 0.4.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pco 0.4.6
[INFO] finished tweaking crates.io crate pco 0.4.6
[INFO] tweaked toml for crates.io crate pco 0.4.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pco 0.4.6 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 pco 0.4.6 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] 752956c5db2ed8f130ff1453efda2f10b1ce6973231c484480018b66618b3701
[INFO] running `Command { std: "docker" "start" "-a" "752956c5db2ed8f130ff1453efda2f10b1ce6973231c484480018b66618b3701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "752956c5db2ed8f130ff1453efda2f10b1ce6973231c484480018b66618b3701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752956c5db2ed8f130ff1453efda2f10b1ce6973231c484480018b66618b3701", kill_on_drop: false }`
[INFO] [stdout] 752956c5db2ed8f130ff1453efda2f10b1ce6973231c484480018b66618b3701
[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] 6fe491826f544c60af9df7c80d290a308be0256fdb193c1fab7b26432c62ae65
[INFO] running `Command { std: "docker" "start" "-a" "6fe491826f544c60af9df7c80d290a308be0256fdb193c1fab7b26432c62ae65", kill_on_drop: false }`
[INFO] [stderr]    Compiling pco v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling half v2.5.0
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/bin_optimization.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |   const Z_SIGNIF: u32 = unsafe { mem::transmute::<f32, u32>(Z) } & SIGNIF_MASK;
[INFO] [stdout]    |                                  --------------------------^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 63 | impl_signed!(i32, u32, 3);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i64::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 64 | impl_signed!(i64, u64, 4);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i16::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 65 | impl_signed!(i16, u16, 8);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_reader.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader> {
[INFO] [stdout]     |            ^^^^^^^^^                ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |            |
[INFO] [stdout]     |            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader<'_>> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "6fe491826f544c60af9df7c80d290a308be0256fdb193c1fab7b26432c62ae65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe491826f544c60af9df7c80d290a308be0256fdb193c1fab7b26432c62ae65", kill_on_drop: false }`
[INFO] [stdout] 6fe491826f544c60af9df7c80d290a308be0256fdb193c1fab7b26432c62ae65
[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] b6ca37f4c503d343051ab030b2c3c16caa888b3b3912e5c1460f953240d4395e
[INFO] running `Command { std: "docker" "start" "-a" "b6ca37f4c503d343051ab030b2c3c16caa888b3b3912e5c1460f953240d4395e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling pco v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 63 | impl_signed!(i32, u32, 3);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i64::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 64 | impl_signed!(i64, u64, 4);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i16::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 65 | impl_signed!(i16, u16, 8);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/bin_optimization.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |   const Z_SIGNIF: u32 = unsafe { mem::transmute::<f32, u32>(Z) } & SIGNIF_MASK;
[INFO] [stdout]    |                                  --------------------------^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `f32::to_bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_reader.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader> {
[INFO] [stdout]     |            ^^^^^^^^^                ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |            |
[INFO] [stdout]     |            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader<'_>> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/bin_optimization.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |   const Z_SIGNIF: u32 = unsafe { mem::transmute::<f32, u32>(Z) } & SIGNIF_MASK;
[INFO] [stdout]    |                                  --------------------------^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bit_reader.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader> {
[INFO] [stdout]     |            ^^^^^^^^^                ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |            |
[INFO] [stdout]     |            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 220 |   fn build(&mut self) -> io::Result<BitReader<'_>> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i32::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 63 | impl_signed!(i32, u32, 3);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i64::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 64 | impl_signed!(i64, u64, 4);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data_types/signeds.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         unsafe { mem::transmute(self) }
[INFO] [stdout]    |                  --------------^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `i16::cast_unsigned`
[INFO] [stdout] ...
[INFO] [stdout] 65 | impl_signed!(i16, u16, 8);
[INFO] [stdout]    | ------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `Command { std: "docker" "inspect" "b6ca37f4c503d343051ab030b2c3c16caa888b3b3912e5c1460f953240d4395e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ca37f4c503d343051ab030b2c3c16caa888b3b3912e5c1460f953240d4395e", kill_on_drop: false }`
[INFO] [stdout] b6ca37f4c503d343051ab030b2c3c16caa888b3b3912e5c1460f953240d4395e
