[INFO] cloning repository https://github.com/jerusan/ad_exchange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jerusan/ad_exchange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerusan%2Fad_exchange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerusan%2Fad_exchange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01619c6d8efd0f2c38470b04a1b4a5af38def32c
[INFO] checking jerusan/ad_exchange against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerusan%2Fad_exchange" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jerusan/ad_exchange on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jerusan/ad_exchange
[INFO] finished tweaking git repo https://github.com/jerusan/ad_exchange
[INFO] tweaked toml for git repo https://github.com/jerusan/ad_exchange written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jerusan/ad_exchange 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.47
[INFO] [stderr]   Downloaded thiserror v1.0.47
[INFO] [stderr]   Downloaded candid v0.9.3
[INFO] [stderr]   Downloaded ic-ledger-types v0.7.0
[INFO] [stderr]   Downloaded winnow v0.5.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2474dfb973c6bf21574b5ddc74ec270fc18b00a380a666f2588ae80fa64f25e
[INFO] running `Command { std: "docker" "start" "-a" "c2474dfb973c6bf21574b5ddc74ec270fc18b00a380a666f2588ae80fa64f25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2474dfb973c6bf21574b5ddc74ec270fc18b00a380a666f2588ae80fa64f25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2474dfb973c6bf21574b5ddc74ec270fc18b00a380a666f2588ae80fa64f25e", kill_on_drop: false }`
[INFO] [stdout] c2474dfb973c6bf21574b5ddc74ec270fc18b00a380a666f2588ae80fa64f25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5aaf276bdc7a82e7ee192b60b124362433d8703c9f365c7eaa71ad564af84df
[INFO] running `Command { std: "docker" "start" "-a" "a5aaf276bdc7a82e7ee192b60b124362433d8703c9f365c7eaa71ad564af84df", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling winnow v0.5.14
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]     Checking num-traits v0.2.16
[INFO] [stderr]    Compiling candid v0.9.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling pretty v0.12.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking ic0 v0.18.11
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking base64 v0.21.3
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling candid_derive v0.6.2
[INFO] [stderr]    Compiling serde_tokenstream v0.1.7
[INFO] [stderr]    Compiling num_enum_derive v0.6.1
[INFO] [stderr]    Compiling binread_derive v2.1.0
[INFO] [stderr]    Compiling num_enum v0.6.1
[INFO] [stderr]    Compiling binread v2.2.0
[INFO] [stderr]    Compiling ic-cdk-macros v0.7.1
[INFO] [stderr]     Checking ic-cdk v0.10.0
[INFO] [stderr]     Checking ic-ledger-types v0.7.0
[INFO] [stderr]     Checking ad_exchange_backend v0.1.0 (/opt/rustwide/workdir/src/ad_exchange_backend)
[INFO] [stdout] warning: use of deprecated function `base64::decode`: Use Engine::decode
[INFO] [stdout]   --> src/ad_exchange_backend/src/verifier.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let decoded_bytes = base64::decode(base64_data).unwrap();
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `base64::decode`: Use Engine::decode
[INFO] [stdout]   --> src/ad_exchange_backend/src/verifier.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let decoded_bytes = base64::decode(base64_data).unwrap();
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/ad_exchange_backend/src/max_heap.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl MaxHeap {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn size(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/ad_exchange_backend/src/max_heap.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl MaxHeap {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn size(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.17s
[INFO] running `Command { std: "docker" "inspect" "a5aaf276bdc7a82e7ee192b60b124362433d8703c9f365c7eaa71ad564af84df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5aaf276bdc7a82e7ee192b60b124362433d8703c9f365c7eaa71ad564af84df", kill_on_drop: false }`
[INFO] [stdout] a5aaf276bdc7a82e7ee192b60b124362433d8703c9f365c7eaa71ad564af84df
[INFO] checking jerusan/ad_exchange against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjerusan%2Fad_exchange" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jerusan/ad_exchange on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jerusan/ad_exchange
[INFO] finished tweaking git repo https://github.com/jerusan/ad_exchange
[INFO] tweaked toml for git repo https://github.com/jerusan/ad_exchange written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jerusan/ad_exchange 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a2ca21be62a91b7a4b2881de5de074cbbd3b5ca6d5d78e1f7cf5dfc44296f81
[INFO] running `Command { std: "docker" "start" "-a" "8a2ca21be62a91b7a4b2881de5de074cbbd3b5ca6d5d78e1f7cf5dfc44296f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a2ca21be62a91b7a4b2881de5de074cbbd3b5ca6d5d78e1f7cf5dfc44296f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2ca21be62a91b7a4b2881de5de074cbbd3b5ca6d5d78e1f7cf5dfc44296f81", kill_on_drop: false }`
[INFO] [stdout] 8a2ca21be62a91b7a4b2881de5de074cbbd3b5ca6d5d78e1f7cf5dfc44296f81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00e4456a40685c4683ea6a858f230e6e1be713f7c669c1c9e72ceb437f6d768f
[INFO] running `Command { std: "docker" "start" "-a" "00e4456a40685c4683ea6a858f230e6e1be713f7c669c1c9e72ceb437f6d768f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling winnow v0.5.14
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking num-traits v0.2.16
[INFO] [stderr]    Compiling candid v0.9.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.183/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "00e4456a40685c4683ea6a858f230e6e1be713f7c669c1c9e72ceb437f6d768f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e4456a40685c4683ea6a858f230e6e1be713f7c669c1c9e72ceb437f6d768f", kill_on_drop: false }`
[INFO] [stdout] 00e4456a40685c4683ea6a858f230e6e1be713f7c669c1c9e72ceb437f6d768f