[INFO] fetching crate csv 1.1.6...
[INFO] building csv-1.1.6 against try#8dae881ac166f8debe04e17604ebbe2ab47083fd+target=i686-unknown-linux-musl for musl_upgrade_test
[INFO] extracting crate csv 1.1.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate csv 1.1.6 on toolchain 8dae881ac166f8debe04e17604ebbe2ab47083fd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate csv 1.1.6
[INFO] finished tweaking crates.io crate csv 1.1.6
[INFO] tweaked toml for crates.io crate csv 1.1.6 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate csv 1.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded serde_derive v1.0.117
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded serde v1.0.117
[INFO] [stderr]   Downloaded syn v1.0.48
[INFO] [stderr]   Downloaded bstr v0.2.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7954b74282d8b85fa7ee061d7dacb99cec2ce0cd43d2279c510848a75f145d1
[INFO] running `Command { std: "docker" "start" "-a" "a7954b74282d8b85fa7ee061d7dacb99cec2ce0cd43d2279c510848a75f145d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7954b74282d8b85fa7ee061d7dacb99cec2ce0cd43d2279c510848a75f145d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7954b74282d8b85fa7ee061d7dacb99cec2ce0cd43d2279c510848a75f145d1", kill_on_drop: false }`
[INFO] [stdout] a7954b74282d8b85fa7ee061d7dacb99cec2ce0cd43d2279c510848a75f145d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fd511e5396ffa7c6fc7e59d866f6281eded352228413815a9d557627be52661c
[INFO] running `Command { std: "docker" "start" "-a" "fd511e5396ffa7c6fc7e59d866f6281eded352228413815a9d557627be52661c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling csv v1.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.59s
[INFO] running `Command { std: "docker" "inspect" "fd511e5396ffa7c6fc7e59d866f6281eded352228413815a9d557627be52661c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd511e5396ffa7c6fc7e59d866f6281eded352228413815a9d557627be52661c", kill_on_drop: false }`
[INFO] [stdout] fd511e5396ffa7c6fc7e59d866f6281eded352228413815a9d557627be52661c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c1509882a51bfefe4146d1f823479647a944cc9930fecb2e267f0b5a6e932df6
[INFO] running `Command { std: "docker" "start" "-a" "c1509882a51bfefe4146d1f823479647a944cc9930fecb2e267f0b5a6e932df6", kill_on_drop: false }`
[INFO] [stderr]    Compiling csv v1.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `city`, `region`, `country` and `population` are never read
[INFO] [stdout]   --> examples/cookbook-read-serde.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Record {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 11 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     region: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     country: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `latitude`, `longitude`, `population`, `city` and `state` are never read
[INFO] [stdout]   --> examples/tutorial-read-serde-04.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Record {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 17 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 18 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 19 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 20 |     state: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `city`, `accent_city`, `population`, `latitude` and `longitude` are never read
[INFO] [stdout]   --> examples/tutorial-perf-serde-01.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Record {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     country: String,
[INFO] [stdout] 11 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     accent_city: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     region: String,
[INFO] [stdout] 14 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 16 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/deserializer.rs:916:22
[INFO] [stdout]     |
[INFO] [stdout] 916 |         struct Bar {};
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `city`, `accent_city`, `population`, `latitude` and `longitude` are never read
[INFO] [stdout]   --> examples/tutorial-perf-serde-02.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Record<'a> {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     country: &'a str,
[INFO] [stdout] 11 |     city: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     accent_city: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     region: &'a str,
[INFO] [stdout] 14 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 16 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `city`, `accent_city`, `population`, `latitude` and `longitude` are never read
[INFO] [stdout]   --> examples/tutorial-perf-serde-03.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Record<'a> {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     country: &'a [u8],
[INFO] [stdout] 11 |     city: &'a [u8],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     accent_city: &'a [u8],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     region: &'a [u8],
[INFO] [stdout] 14 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 16 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `latitude`, `longitude`, `population`, `city` and `state` are never read
[INFO] [stdout]   --> examples/tutorial-read-serde-invalid-01.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Record {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     state: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] warning: fields `latitude`, `longitude`, `population`, `city` and `state` are never read
[INFO] [stdout]   --> examples/tutorial-read-serde-invalid-02.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Record {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 9  |     latitude: f64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 10 |     longitude: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     #[serde(deserialize_with = "csv::invalid_option")]
[INFO] [stdout] 12 |     population: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     city: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     state: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "c1509882a51bfefe4146d1f823479647a944cc9930fecb2e267f0b5a6e932df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1509882a51bfefe4146d1f823479647a944cc9930fecb2e267f0b5a6e932df6", kill_on_drop: false }`
[INFO] [stdout] c1509882a51bfefe4146d1f823479647a944cc9930fecb2e267f0b5a6e932df6