[INFO] fetching crate assemblylift-iomod-dynamodb-guest 0.1.7...
[INFO] checking assemblylift-iomod-dynamodb-guest-0.1.7 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate assemblylift-iomod-dynamodb-guest 0.1.7 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate assemblylift-iomod-dynamodb-guest 0.1.7
[INFO] finished tweaking crates.io crate assemblylift-iomod-dynamodb-guest 0.1.7
[INFO] tweaked toml for crates.io crate assemblylift-iomod-dynamodb-guest 0.1.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate assemblylift-iomod-dynamodb-guest 0.1.7 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.12.3 (available: v0.22.1)
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assemblylift-core-io-guest v0.3.2
[INFO] [stderr]   Downloaded assemblylift-core-io-common v0.3.0
[INFO] [stderr]   Downloaded assemblylift-core-iomod-guest v0.3.0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb21c8d91a24e79b87cbc081bac3a8ba2a1c63f362ceca9b2a946066fee96eac
[INFO] running `Command { std: "docker" "start" "-a" "eb21c8d91a24e79b87cbc081bac3a8ba2a1c63f362ceca9b2a946066fee96eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb21c8d91a24e79b87cbc081bac3a8ba2a1c63f362ceca9b2a946066fee96eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb21c8d91a24e79b87cbc081bac3a8ba2a1c63f362ceca9b2a946066fee96eac", kill_on_drop: false }`
[INFO] [stdout] eb21c8d91a24e79b87cbc081bac3a8ba2a1c63f362ceca9b2a946066fee96eac
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbdbbe1bfcc96f691d98054a2b65f4a14bf9a8bfb7516d4e49fcfdfd2a3ac9d6
[INFO] running `Command { std: "docker" "start" "-a" "cbdbbe1bfcc96f691d98054a2b65f4a14bf9a8bfb7516d4e49fcfdfd2a3ac9d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking assemblylift-core-iomod-guest v0.3.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking assemblylift-core-io-common v0.3.0
[INFO] [stderr]     Checking assemblylift-core-io-guest v0.3.2
[INFO] [stderr]     Checking assemblylift-iomod-dynamodb-guest v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/serialization.rs:361:12
[INFO] [stdout]     |
[INFO] [stdout] 361 |         s: &str,
[INFO] [stdout]     |            ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 364 |         <&mut serde_json::de::Deserializer<serde_json::de::StrRead> as serde::Deserializer>::Error,
[INFO] [stdout]     |         ------------------------------------------------------------------------------------------
[INFO] [stdout]     |         ||                                 |
[INFO] [stdout]     |         ||                                 the same lifetime is hidden here
[INFO] [stdout]     |         |the same lifetime is elided here
[INFO] [stdout]     |         the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 364 |         <&mut serde_json::de::Deserializer<serde_json::de::StrRead<'_>> as serde::Deserializer<'_>>::Error,
[INFO] [stdout]     |                                                                   ++++                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/serialization.rs:381:12
[INFO] [stdout]     |
[INFO] [stdout] 381 |         s: &str,
[INFO] [stdout]     |            ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 384 |         <&mut serde_json::de::Deserializer<serde_json::de::StrRead> as serde::Deserializer>::Error,
[INFO] [stdout]     |         ------------------------------------------------------------------------------------------
[INFO] [stdout]     |         ||                                 |
[INFO] [stdout]     |         ||                                 the same lifetime is hidden here
[INFO] [stdout]     |         |the same lifetime is elided here
[INFO] [stdout]     |         the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 384 |         <&mut serde_json::de::Deserializer<serde_json::de::StrRead<'_>> as serde::Deserializer<'_>>::Error,
[INFO] [stdout]     |                                                                   ++++                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SerdeBlob` is never used
[INFO] [stdout]  --> src/serialization.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait SerdeBlob: Sized {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlobVisitor` is never constructed
[INFO] [stdout]   --> src/serialization.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct BlobVisitor;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionalBlobVisitor` is never constructed
[INFO] [stdout]   --> src/serialization.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct OptionalBlobVisitor;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeWrapper` is never constructed
[INFO] [stdout]   --> src/serialization.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | struct DeserializeWrapper<T>(T);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeWrapper` is never constructed
[INFO] [stdout]    --> src/serialization.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | struct SerializeWrapper<'a, T>(&'a T);
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SerdeBlobList` is never used
[INFO] [stdout]    --> src/serialization.rs:125:11
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub trait SerdeBlobList: Sized {
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlobListVisitor` is never constructed
[INFO] [stdout]    --> src/serialization.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | struct BlobListVisitor;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionalBlobListVisitor` is never constructed
[INFO] [stdout]    --> src/serialization.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | struct OptionalBlobListVisitor;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.88s
[INFO] running `Command { std: "docker" "inspect" "cbdbbe1bfcc96f691d98054a2b65f4a14bf9a8bfb7516d4e49fcfdfd2a3ac9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbdbbe1bfcc96f691d98054a2b65f4a14bf9a8bfb7516d4e49fcfdfd2a3ac9d6", kill_on_drop: false }`
[INFO] [stdout] cbdbbe1bfcc96f691d98054a2b65f4a14bf9a8bfb7516d4e49fcfdfd2a3ac9d6
