[INFO] cloning repository https://github.com/WataNekko/mailr-nal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WataNekko/mailr-nal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWataNekko%2Fmailr-nal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWataNekko%2Fmailr-nal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2cfe1dc9ad429c44c2b73f23c9bbabf2e12e772
[INFO] checking WataNekko/mailr-nal against try#b6bca0d7327839b5e3f7a7779947cb9113d08917+rustflags=-Zstrict-projection-item-bounds for 150662-leaf
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWataNekko%2Fmailr-nal" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/WataNekko/mailr-nal
[INFO] finished tweaking git repo https://github.com/WataNekko/mailr-nal
[INFO] tweaked toml for git repo https://github.com/WataNekko/mailr-nal written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WataNekko/mailr-nal on toolchain b6bca0d7327839b5e3f7a7779947cb9113d08917
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/WataNekko/mailr-nal 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" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb1f3510150d856aedb8d1ccfdbc23f9bd3d9527e1476ee7037168411725a048
[INFO] running `Command { std: "docker" "start" "-a" "cb1f3510150d856aedb8d1ccfdbc23f9bd3d9527e1476ee7037168411725a048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb1f3510150d856aedb8d1ccfdbc23f9bd3d9527e1476ee7037168411725a048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1f3510150d856aedb8d1ccfdbc23f9bd3d9527e1476ee7037168411725a048", kill_on_drop: false }`
[INFO] [stdout] cb1f3510150d856aedb8d1ccfdbc23f9bd3d9527e1476ee7037168411725a048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Zstrict-projection-item-bounds" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b6bca0d7327839b5e3f7a7779947cb9113d08917" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4723fc7b6a630c9c1d5a5070f4bd06b63babe08dfb5f3fb72ca979711b62fdb
[INFO] running `Command { std: "docker" "start" "-a" "d4723fc7b6a630c9c1d5a5070f4bd06b63babe08dfb5f3fb72ca979711b62fdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling cc v1.1.15
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]     Checking embedded-nal v0.8.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking test-common v0.0.0 (/opt/rustwide/workdir/tests/common)
[INFO] [stderr]     Checking std-embedded-nal v0.3.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling enumset_derive v0.10.0
[INFO] [stderr]     Checking enumset v1.1.5
[INFO] [stderr]     Checking mailr-nal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == S`
[INFO] [stdout]   --> src/message.rs:59:90
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn new(from: impl Into<Option<&'a str>>, to: impl IntoIterator<IntoIter = I>) -> Self {
[INFO] [stdout]    |                                                                                          ^^^^ cannot satisfy `<I as Iterator>::Item == S`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Envelope`
[INFO] [stdout]   --> src/message.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Envelope<'a, S, I>
[INFO] [stdout]    |            -------- required by a bound in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     I: Iterator<Item = S>,
[INFO] [stdout]    |                 ^^^^^^^^ required by this bound in `Envelope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `<I as Iterator>::Item == S`
[INFO] [stdout]   --> src/message.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         Self {
[INFO] [stdout]    |         ^^^^ cannot satisfy `<I as Iterator>::Item == S`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Envelope`
[INFO] [stdout]   --> src/message.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Envelope<'a, S, I>
[INFO] [stdout]    |            -------- required by a bound in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     I: Iterator<Item = S>,
[INFO] [stdout]    |                 ^^^^^^^^ required by this bound in `Envelope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mailr-nal` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d4723fc7b6a630c9c1d5a5070f4bd06b63babe08dfb5f3fb72ca979711b62fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4723fc7b6a630c9c1d5a5070f4bd06b63babe08dfb5f3fb72ca979711b62fdb", kill_on_drop: false }`
[INFO] [stdout] d4723fc7b6a630c9c1d5a5070f4bd06b63babe08dfb5f3fb72ca979711b62fdb