[INFO] fetching crate embedded-hal-vcd 0.2.0...
[INFO] checking embedded-hal-vcd-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate embedded-hal-vcd 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate embedded-hal-vcd 0.2.0
[INFO] finished tweaking crates.io crate embedded-hal-vcd 0.2.0
[INFO] tweaked toml for crates.io crate embedded-hal-vcd 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate embedded-hal-vcd 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate embedded-hal-vcd 0.2.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0ab68b65d898a8d88d7ad795bde1ba14a64353cbd3203ac074c2a50d461c2c5
[INFO] running `Command { std: "docker" "start" "-a" "d0ab68b65d898a8d88d7ad795bde1ba14a64353cbd3203ac074c2a50d461c2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0ab68b65d898a8d88d7ad795bde1ba14a64353cbd3203ac074c2a50d461c2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0ab68b65d898a8d88d7ad795bde1ba14a64353cbd3203ac074c2a50d461c2c5", kill_on_drop: false }`
[INFO] [stdout] d0ab68b65d898a8d88d7ad795bde1ba14a64353cbd3203ac074c2a50d461c2c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd9f943602e2e7af13a513bdd808449fe6d45dd3a1fd850ee98fce84543bdefb
[INFO] running `Command { std: "docker" "start" "-a" "fd9f943602e2e7af13a513bdd808449fe6d45dd3a1fd850ee98fce84543bdefb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking vcd v0.6.1
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.9
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking synchronized-writer v1.1.10
[INFO] [stderr]     Checking pretty_assertions v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking embedded-time v0.12.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking embedded-hal-sync-pins v0.7.0
[INFO] [stderr]     Checking embedded-hal-vcd v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pretty_assertions::assert_eq`
[INFO] [stdout]    --> src/writer.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     use pretty_assertions::assert_eq;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 pin.is_high(),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:148:17
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 Ok(state_pin),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 | /             assert_eq!(
[INFO] [stdout] 147 | |                 pin.is_high(),
[INFO] [stdout] 148 | |                 Ok(state_pin),
[INFO] [stdout] 149 | |                 "testing pin state at timestamp {}",
[INFO] [stdout] 150 | |                 vcd_time
[INFO] [stdout] 151 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 | /             assert_eq!(
[INFO] [stdout] 147 | |                 pin.is_high(),
[INFO] [stdout] 148 | |                 Ok(state_pin),
[INFO] [stdout] 149 | |                 "testing pin state at timestamp {}",
[INFO] [stdout] 150 | |                 vcd_time
[INFO] [stdout] 151 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 | /             assert_eq!(
[INFO] [stdout] 147 | |                 pin.is_high(),
[INFO] [stdout] 148 | |                 Ok(state_pin),
[INFO] [stdout] 149 | |                 "testing pin state at timestamp {}",
[INFO] [stdout] 150 | |                 vcd_time
[INFO] [stdout] 151 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/reader.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 | /             assert_eq!(
[INFO] [stdout] 147 | |                 pin.is_high(),
[INFO] [stdout] 148 | |                 Ok(state_pin),
[INFO] [stdout] 149 | |                 "testing pin state at timestamp {}",
[INFO] [stdout] 150 | |                 vcd_time
[INFO] [stdout] 151 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embedded-hal-vcd` (lib test) due to 6 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fd9f943602e2e7af13a513bdd808449fe6d45dd3a1fd850ee98fce84543bdefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9f943602e2e7af13a513bdd808449fe6d45dd3a1fd850ee98fce84543bdefb", kill_on_drop: false }`
[INFO] [stdout] fd9f943602e2e7af13a513bdd808449fe6d45dd3a1fd850ee98fce84543bdefb