[INFO] fetching crate decimal 2.1.0...
[INFO] checking decimal-2.1.0 against try#218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa for pr-92594
[INFO] extracting crate decimal 2.1.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate decimal 2.1.0 on toolchain 218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate decimal 2.1.0
[INFO] finished tweaking crates.io crate decimal 2.1.0
[INFO] tweaked toml for crates.io crate decimal 2.1.0 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate decimal 2.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20c68e48c004106368c86c95deef0ae5c807bf33d6a27441e2431acb5e0db396
[INFO] running `Command { std: "docker" "start" "-a" "20c68e48c004106368c86c95deef0ae5c807bf33d6a27441e2431acb5e0db396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c68e48c004106368c86c95deef0ae5c807bf33d6a27441e2431acb5e0db396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c68e48c004106368c86c95deef0ae5c807bf33d6a27441e2431acb5e0db396", kill_on_drop: false }`
[INFO] [stdout] 20c68e48c004106368c86c95deef0ae5c807bf33d6a27441e2431acb5e0db396
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c63993ef5f9fb5e22a568b454169e85ba538a95079349ff12b05cbcd5914fadc
[INFO] running `Command { std: "docker" "start" "-a" "c63993ef5f9fb5e22a568b454169e85ba538a95079349ff12b05cbcd5914fadc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ord_subset v3.1.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling decimal v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/bin/run-test.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     id: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': unstable implementation detail of the `rustc` compiler, do not use
[INFO] [stdout]     --> src/dec128.rs:1062:18
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         #[derive(RustcDecodable, RustcEncodable, PartialEq, Debug)]
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[deny(soft_unstable)]` on by default
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]     --> src/dec128.rs:1062:18
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         #[derive(RustcDecodable, RustcEncodable, PartialEq, Debug)]
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': unstable implementation detail of the `rustc` compiler, do not use
[INFO] [stdout]     --> src/dec128.rs:1062:34
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         #[derive(RustcDecodable, RustcEncodable, PartialEq, Debug)]
[INFO] [stdout]      |                                  ^^^^^^^^^^^^^^
[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 #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]     --> src/dec128.rs:1062:34
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         #[derive(RustcDecodable, RustcEncodable, PartialEq, Debug)]
[INFO] [stdout]      |                                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/bin/run-test.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     id: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `decimal` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c63993ef5f9fb5e22a568b454169e85ba538a95079349ff12b05cbcd5914fadc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63993ef5f9fb5e22a568b454169e85ba538a95079349ff12b05cbcd5914fadc", kill_on_drop: false }`
[INFO] [stdout] c63993ef5f9fb5e22a568b454169e85ba538a95079349ff12b05cbcd5914fadc