[INFO] fetching crate gcalc 0.4.0...
[INFO] testing gcalc-0.4.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate gcalc 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate gcalc 0.4.0
[INFO] finished tweaking crates.io crate gcalc 0.4.0
[INFO] tweaked toml for crates.io crate gcalc 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gcalc 0.4.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gcalc 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cindex v0.5.1
[INFO] [stderr]   Downloaded papergrid v0.1.23
[INFO] [stderr]   Downloaded tabled_derive v0.1.8
[INFO] [stderr]   Downloaded dcsv v0.2.0
[INFO] [stderr]   Downloaded tabled v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18a9791f1d7e3d9ec9bee22a4959f06dba354ded8c62ecd27112d13e8bf3a849
[INFO] running `Command { std: "docker" "start" "-a" "18a9791f1d7e3d9ec9bee22a4959f06dba354ded8c62ecd27112d13e8bf3a849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18a9791f1d7e3d9ec9bee22a4959f06dba354ded8c62ecd27112d13e8bf3a849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a9791f1d7e3d9ec9bee22a4959f06dba354ded8c62ecd27112d13e8bf3a849", kill_on_drop: false }`
[INFO] [stdout] 18a9791f1d7e3d9ec9bee22a4959f06dba354ded8c62ecd27112d13e8bf3a849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fca7ffcb416ac531f11ade0bb73f82eb08bce4e864bcce604e08f6854ea9786a
[INFO] running `Command { std: "docker" "start" "-a" "fca7ffcb416ac531f11ade0bb73f82eb08bce4e864bcce604e08f6854ea9786a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling dcsv v0.2.0
[INFO] [stderr]    Compiling cindex v0.5.1
[INFO] [stderr]    Compiling gcalc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/calc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/models.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct Qualficiation {
[INFO] [stdout]    |                   ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub value: f32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormatRecord` is never constructed
[INFO] [stdout]   --> src/models.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) struct FormatRecord {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_record` is never used
[INFO] [stdout]   --> src/models.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl FormatRecord {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 50 |     pub fn from_record(record: &Record) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.03s
[INFO] running `Command { std: "docker" "inspect" "fca7ffcb416ac531f11ade0bb73f82eb08bce4e864bcce604e08f6854ea9786a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca7ffcb416ac531f11ade0bb73f82eb08bce4e864bcce604e08f6854ea9786a", kill_on_drop: false }`
[INFO] [stdout] fca7ffcb416ac531f11ade0bb73f82eb08bce4e864bcce604e08f6854ea9786a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 04c61b3c8d34edf21fc6444addb71fc24bbfafc7facb49bfd8165cc1986655b6
[INFO] running `Command { std: "docker" "start" "-a" "04c61b3c8d34edf21fc6444addb71fc24bbfafc7facb49bfd8165cc1986655b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcalc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/calc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/models.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct Qualficiation {
[INFO] [stdout]    |                   ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub value: f32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormatRecord` is never constructed
[INFO] [stdout]   --> src/models.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) struct FormatRecord {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_record` is never used
[INFO] [stdout]   --> src/models.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl FormatRecord {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 50 |     pub fn from_record(record: &Record) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/calc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/models.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct Qualficiation {
[INFO] [stdout]    |                   ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub value: f32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormatRecord` is never constructed
[INFO] [stdout]   --> src/models.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) struct FormatRecord {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_record` is never used
[INFO] [stdout]   --> src/models.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl FormatRecord {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 50 |     pub fn from_record(record: &Record) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "04c61b3c8d34edf21fc6444addb71fc24bbfafc7facb49bfd8165cc1986655b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04c61b3c8d34edf21fc6444addb71fc24bbfafc7facb49bfd8165cc1986655b6", kill_on_drop: false }`
[INFO] [stdout] 04c61b3c8d34edf21fc6444addb71fc24bbfafc7facb49bfd8165cc1986655b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] e71d4f2df3b1d6d80daddd03a93df4e04a8b2ac60014b53ff56a85e526811f88
[INFO] running `Command { std: "docker" "start" "-a" "e71d4f2df3b1d6d80daddd03a93df4e04a8b2ac60014b53ff56a85e526811f88", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/calc.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> src/models.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub(crate) struct Qualficiation {
[INFO] [stderr]    |                   ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 19 |     pub value: f32,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FormatRecord` is never constructed
[INFO] [stderr]   --> src/models.rs:41:19
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub(crate) struct FormatRecord {
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_record` is never used
[INFO] [stderr]   --> src/models.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl FormatRecord {
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 50 |     pub fn from_record(record: &Record) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `gcalc` (lib) generated 4 warnings (run `cargo fix --lib -p gcalc` to apply 1 suggestion)
[INFO] [stderr] warning: `gcalc` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/gcalc-ef2033efa92baca5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/gcalc-5a086c9a7b25e7c6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e71d4f2df3b1d6d80daddd03a93df4e04a8b2ac60014b53ff56a85e526811f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71d4f2df3b1d6d80daddd03a93df4e04a8b2ac60014b53ff56a85e526811f88", kill_on_drop: false }`
[INFO] [stdout] e71d4f2df3b1d6d80daddd03a93df4e04a8b2ac60014b53ff56a85e526811f88