[INFO] fetching crate cerk 0.2.11...
[INFO] testing cerk-0.2.11 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate cerk 0.2.11 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cerk 0.2.11
[INFO] finished tweaking crates.io crate cerk 0.2.11
[INFO] tweaked toml for crates.io crate cerk 0.2.11 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cerk 0.2.11 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 87 packages to latest compatible versions
[INFO] [stderr]       Adding cloudevents-sdk v0.3.1 (available: v0.8.0)
[INFO] [stderr]       Adding strum_macros v0.19.4 (available: v0.27.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b13d113e1144ed85b00f918f9007ed0f8c9015cea42390b0ec6340482f50be7
[INFO] running `Command { std: "docker" "start" "-a" "5b13d113e1144ed85b00f918f9007ed0f8c9015cea42390b0ec6340482f50be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b13d113e1144ed85b00f918f9007ed0f8c9015cea42390b0ec6340482f50be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b13d113e1144ed85b00f918f9007ed0f8c9015cea42390b0ec6340482f50be7", kill_on_drop: false }`
[INFO] [stdout] 5b13d113e1144ed85b00f918f9007ed0f8c9015cea42390b0ec6340482f50be7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32ee815a376350c5d48bafe97036de02d4db4954259e80c35e47f6431247be91
[INFO] running `Command { std: "docker" "start" "-a" "32ee815a376350c5d48bafe97036de02d4db4954259e80c35e47f6431247be91", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling delegate-attr v0.2.9
[INFO] [stderr]    Compiling strum_macros v0.19.4
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling cloudevents-sdk v0.3.1
[INFO] [stderr]    Compiling cerk v0.2.11 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde::export`
[INFO] [stdout]  --> src/kernel/config.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::export::TryFrom;
[INFO] [stdout]   |            ^^^^^^ could not find `export` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/kernel/config.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[serde(untagged)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 13 | #[derive(Deserialize, Serialize)]
[INFO] [stdout]    |          ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> src/kernel/config.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 28 +     fn try_from(value: &Config) -> Result<Self, <u8 as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 28 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 28 +     fn try_from(value: &Config) -> Result<Self, <u8 as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> src/kernel/config.rs:38:49
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 38 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 38 +     fn try_from(value: &Config) -> Result<Self, <u32 as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 38 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 38 +     fn try_from(value: &Config) -> Result<Self, <u32 as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> src/kernel/config.rs:59:49
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use fully-qualified syntax
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 59 +     fn try_from(value: &Config) -> Result<Self, <Vec<Config> as TryFrom>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 59 -     fn try_from(value: &Config) -> Result<Self, Self::Error> {
[INFO] [stdout] 59 +     fn try_from(value: &Config) -> Result<Self, <Vec<Config> as TryInto>::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0223, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0223`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cerk` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "32ee815a376350c5d48bafe97036de02d4db4954259e80c35e47f6431247be91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ee815a376350c5d48bafe97036de02d4db4954259e80c35e47f6431247be91", kill_on_drop: false }`
[INFO] [stdout] 32ee815a376350c5d48bafe97036de02d4db4954259e80c35e47f6431247be91
