[INFO] fetching crate iza 0.1.0...
[INFO] testing iza-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate iza 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate iza 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iza 0.1.0
[INFO] finished tweaking crates.io crate iza 0.1.0
[INFO] tweaked toml for crates.io crate iza 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4eff9d2b8298e57daa998934bf7f08ef3cd7e2d3c5dde45b1f574db3f2178d73
[INFO] running `Command { std: "docker" "start" "-a" "4eff9d2b8298e57daa998934bf7f08ef3cd7e2d3c5dde45b1f574db3f2178d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eff9d2b8298e57daa998934bf7f08ef3cd7e2d3c5dde45b1f574db3f2178d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eff9d2b8298e57daa998934bf7f08ef3cd7e2d3c5dde45b1f574db3f2178d73", kill_on_drop: false }`
[INFO] [stdout] 4eff9d2b8298e57daa998934bf7f08ef3cd7e2d3c5dde45b1f574db3f2178d73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0be1c9f97c38071c2e960866202227baf682bbfdc926e0725e253c0cc10a7cc8
[INFO] running `Command { std: "docker" "start" "-a" "0be1c9f97c38071c2e960866202227baf682bbfdc926e0725e253c0cc10a7cc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling blake2 v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling iza v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]   --> src/resource/command_id.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |         #[derive(Serialize)]
[INFO] [stdout]    |                  ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]   --> src/resource/command_id.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |         #[derive(Serialize)]
[INFO] [stdout]    |                  ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]   --> src/resource/command_id.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |         #[derive(Serialize)]
[INFO] [stdout]    |                  ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]   --> src/resource/command_id.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |         #[derive(Serialize)]
[INFO] [stdout]    |                  ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/command_strings.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/command_strings.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/command_strings.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_details.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Serialize)]
[INFO] [stdout]   |          ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_details.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Serialize)]
[INFO] [stdout]   |          ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_details.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Serialize)]
[INFO] [stdout]   |          ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_id.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_id.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `_serde`
[INFO] [stdout]  --> src/resource/executor_id.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Clone, Serialize)]
[INFO] [stdout]   |                 ^^^^^^^^^ could not find `__private` in `_serde`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iza` due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0be1c9f97c38071c2e960866202227baf682bbfdc926e0725e253c0cc10a7cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be1c9f97c38071c2e960866202227baf682bbfdc926e0725e253c0cc10a7cc8", kill_on_drop: false }`
[INFO] [stdout] 0be1c9f97c38071c2e960866202227baf682bbfdc926e0725e253c0cc10a7cc8