[INFO] fetching crate serde_scala 0.1.2...
[INFO] checking serde_scala-0.1.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate serde_scala 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate serde_scala 0.1.2
[INFO] finished tweaking crates.io crate serde_scala 0.1.2
[INFO] tweaked toml for crates.io crate serde_scala 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_scala 0.1.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04f05aca7b57fa6c7031565c10a3b00d1dc67f7ca8720640e271b8f1eacdc83a
[INFO] running `Command { std: "docker" "start" "-a" "04f05aca7b57fa6c7031565c10a3b00d1dc67f7ca8720640e271b8f1eacdc83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04f05aca7b57fa6c7031565c10a3b00d1dc67f7ca8720640e271b8f1eacdc83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f05aca7b57fa6c7031565c10a3b00d1dc67f7ca8720640e271b8f1eacdc83a", kill_on_drop: false }`
[INFO] [stdout] 04f05aca7b57fa6c7031565c10a3b00d1dc67f7ca8720640e271b8f1eacdc83a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 994c3c2bfc9b2f4f93922a26673e1d7b060219c6d459193a30a9badda057a3a4
[INFO] running `Command { std: "docker" "start" "-a" "994c3c2bfc9b2f4f93922a26673e1d7b060219c6d459193a30a9badda057a3a4", kill_on_drop: false }`
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking serde_scala v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::{Display, write}, str::FromStr, num::{ParseFloatError, ParseIntError}, string::FromUtf8Error};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `add_pitch`
[INFO] [stdout]   --> src/lib.rs:92:7
[INFO] [stdout]    |
[INFO] [stdout] 92 | macro add_pitch {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap`, `BTreeSet`, and `File`
[INFO] [stdout]    --> src/lib.rs:287:29
[INFO] [stdout]     |
[INFO] [stdout] 287 |     use std::{collections::{BTreeSet, BTreeMap}, fs::{File, self}};
[INFO] [stdout]     |                             ^^^^^^^^  ^^^^^^^^        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::{Display, write}, str::FromStr, num::{ParseFloatError, ParseIntError}, string::FromUtf8Error};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `add_pitch`
[INFO] [stdout]   --> src/lib.rs:92:7
[INFO] [stdout]    |
[INFO] [stdout] 92 | macro add_pitch {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "994c3c2bfc9b2f4f93922a26673e1d7b060219c6d459193a30a9badda057a3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994c3c2bfc9b2f4f93922a26673e1d7b060219c6d459193a30a9badda057a3a4", kill_on_drop: false }`
[INFO] [stdout] 994c3c2bfc9b2f4f93922a26673e1d7b060219c6d459193a30a9badda057a3a4