[INFO] fetching crate serde_scala 0.1.2...
[INFO] checking serde_scala-0.1.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate serde_scala 0.1.2 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_scala 0.1.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d51182fc880d4cde7b56a377b726e469d68425b4beb204ab2ecd817c01b77c3
[INFO] running `Command { std: "docker" "start" "-a" "0d51182fc880d4cde7b56a377b726e469d68425b4beb204ab2ecd817c01b77c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d51182fc880d4cde7b56a377b726e469d68425b4beb204ab2ecd817c01b77c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d51182fc880d4cde7b56a377b726e469d68425b4beb204ab2ecd817c01b77c3", kill_on_drop: false }`
[INFO] [stdout] 0d51182fc880d4cde7b56a377b726e469d68425b4beb204ab2ecd817c01b77c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a3534e225d87e7ccf59a096ce08c1030ccebd070333c4275c13f46b4f7e7506
[INFO] running `Command { std: "docker" "start" "-a" "8a3534e225d87e7ccf59a096ce08c1030ccebd070333c4275c13f46b4f7e7506", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[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 3.38s
[INFO] running `Command { std: "docker" "inspect" "8a3534e225d87e7ccf59a096ce08c1030ccebd070333c4275c13f46b4f7e7506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a3534e225d87e7ccf59a096ce08c1030ccebd070333c4275c13f46b4f7e7506", kill_on_drop: false }`
[INFO] [stdout] 8a3534e225d87e7ccf59a096ce08c1030ccebd070333c4275c13f46b4f7e7506