[INFO] fetching crate pcast 0.3.0...
[INFO] checking pcast-0.3.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate pcast 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pcast 0.3.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pcast 0.3.0
[INFO] finished tweaking crates.io crate pcast 0.3.0
[INFO] tweaked toml for crates.io crate pcast 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6115a4ca6ef038df7059e1a39a68c3f6d34fbdd1a4bbbfaeeea9b49a4ee9911
[INFO] running `Command { std: "docker" "start" "-a" "f6115a4ca6ef038df7059e1a39a68c3f6d34fbdd1a4bbbfaeeea9b49a4ee9911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6115a4ca6ef038df7059e1a39a68c3f6d34fbdd1a4bbbfaeeea9b49a4ee9911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6115a4ca6ef038df7059e1a39a68c3f6d34fbdd1a4bbbfaeeea9b49a4ee9911", kill_on_drop: false }`
[INFO] [stdout] f6115a4ca6ef038df7059e1a39a68c3f6d34fbdd1a4bbbfaeeea9b49a4ee9911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1cf606f8e3270783cf7559919b945c96ed355fafe1ff538f37b03d94efb2663
[INFO] running `Command { std: "docker" "start" "-a" "b1cf606f8e3270783cf7559919b945c96ed355fafe1ff538f37b03d94efb2663", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking pcast v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(&base));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 | /     subtype_of!(Packet => PingPacket | ConversionError {
[INFO] [stdout] 176 | |         Ok(())
[INFO] [stdout] 177 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 | /     subtype_of!(Packet => PingPacket | ConversionError {
[INFO] [stdout] 176 | |         Ok(())
[INFO] [stdout] 177 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 | /     subtype_of!(Packet => PingPacket | ConversionError {
[INFO] [stdout] 176 | |         Ok(())
[INFO] [stdout] 177 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(&base));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | /     subtype_of!(Packet => PongPacket | PongConvError {
[INFO] [stdout] 179 | |         Err(PongConvError {})
[INFO] [stdout] 180 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | /     subtype_of!(Packet => PongPacket | PongConvError {
[INFO] [stdout] 179 | |         Err(PongConvError {})
[INFO] [stdout] 180 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 | /     subtype_of!(Packet => PongPacket | PongConvError {
[INFO] [stdout] 179 | |         Err(PongConvError {})
[INFO] [stdout] 180 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(&base));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 | /     subtype_of!(Packet => StatusPacket | () {
[INFO] [stdout] 182 | |         Ok(())
[INFO] [stdout] 183 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 | /     subtype_of!(Packet => StatusPacket | () {
[INFO] [stdout] 182 | |         Ok(())
[INFO] [stdout] 183 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:126:17
[INFO] [stdout]     |
[INFO] [stdout] 126 |                   try!($crate::SubtypeCheck::<$base, $sub, $cerr>::check_is_valid_subtype(base_ref));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 | /     subtype_of!(Packet => StatusPacket | () {
[INFO] [stdout] 182 | |         Ok(())
[INFO] [stdout] 183 | |     });
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `subtype_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let mut status_mut_ref: &mut StatusPacket = (&mut owned).try_into().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:258:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |         let mut status_mut_view: &mut StatusPacket = pref.try_into().unwrap();
[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/lib.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |         let mut status_mut_view: &mut StatusPacket = (&mut owned).try_into().unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "b1cf606f8e3270783cf7559919b945c96ed355fafe1ff538f37b03d94efb2663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1cf606f8e3270783cf7559919b945c96ed355fafe1ff538f37b03d94efb2663", kill_on_drop: false }`
[INFO] [stdout] b1cf606f8e3270783cf7559919b945c96ed355fafe1ff538f37b03d94efb2663