[INFO] fetching crate discreet-common 0.1.0...
[INFO] testing discreet-common-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate discreet-common 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate discreet-common 0.1.0
[INFO] finished tweaking crates.io crate discreet-common 0.1.0
[INFO] tweaked toml for crates.io crate discreet-common 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate discreet-common 0.1.0 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 discreet-common 0.1.0 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] 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd5b5aa710261f95228c16ed6a8e4a5f6c83c439a0f87392d90c6076170464c7
[INFO] running `Command { std: "docker" "start" "-a" "fd5b5aa710261f95228c16ed6a8e4a5f6c83c439a0f87392d90c6076170464c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd5b5aa710261f95228c16ed6a8e4a5f6c83c439a0f87392d90c6076170464c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd5b5aa710261f95228c16ed6a8e4a5f6c83c439a0f87392d90c6076170464c7", kill_on_drop: false }`
[INFO] [stdout] fd5b5aa710261f95228c16ed6a8e4a5f6c83c439a0f87392d90c6076170464c7
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f319d638e7dcd464051afc72803d84727798ca43e7fd5d76aa6d6230ec27bc40
[INFO] running `Command { std: "docker" "start" "-a" "f319d638e7dcd464051afc72803d84727798ca43e7fd5d76aa6d6230ec27bc40", kill_on_drop: false }`
[INFO] [stderr]    Compiling discreet-common v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Expression` is more private than the item `Derivative`
[INFO] [stdout]   --> src/diff_eq.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct Derivative<Expr: Expression, Variable: self::Variable> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ struct `Derivative` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `Expression` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/diff_eq.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node2D<const I: usize, const J: usize> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 7 |     /// The value of this node when evaluating the finite difference operator on the stencil
[INFO] [stdout] 8 |     value: f64,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/diff_eq.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Expr {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `eval` is never used
[INFO] [stdout]   --> src/diff_eq.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] 19 |     fn eval() -> Expr;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "f319d638e7dcd464051afc72803d84727798ca43e7fd5d76aa6d6230ec27bc40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f319d638e7dcd464051afc72803d84727798ca43e7fd5d76aa6d6230ec27bc40", kill_on_drop: false }`
[INFO] [stdout] f319d638e7dcd464051afc72803d84727798ca43e7fd5d76aa6d6230ec27bc40
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1478b58fd01d9b40f190c1186b0c46ce9a73a9617659fa25fcd259454713c4aa
[INFO] running `Command { std: "docker" "start" "-a" "1478b58fd01d9b40f190c1186b0c46ce9a73a9617659fa25fcd259454713c4aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling discreet-common v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Expression` is more private than the item `Derivative`
[INFO] [stdout]   --> src/diff_eq.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct Derivative<Expr: Expression, Variable: self::Variable> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ struct `Derivative` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `Expression` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/diff_eq.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node2D<const I: usize, const J: usize> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 7 |     /// The value of this node when evaluating the finite difference operator on the stencil
[INFO] [stdout] 8 |     value: f64,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/diff_eq.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Expr {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `eval` is never used
[INFO] [stdout]   --> src/diff_eq.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] 19 |     fn eval() -> Expr;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Expression` is more private than the item `Derivative`
[INFO] [stdout]   --> src/diff_eq.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct Derivative<Expr: Expression, Variable: self::Variable> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ struct `Derivative` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `Expression` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/diff_eq.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node2D<const I: usize, const J: usize> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 7 |     /// The value of this node when evaluating the finite difference operator on the stencil
[INFO] [stdout] 8 |     value: f64,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/diff_eq.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Expr {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `eval` is never used
[INFO] [stdout]   --> src/diff_eq.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | trait Expression {
[INFO] [stdout]    |       ---------- associated function in this trait
[INFO] [stdout] 19 |     fn eval() -> Expr;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "1478b58fd01d9b40f190c1186b0c46ce9a73a9617659fa25fcd259454713c4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1478b58fd01d9b40f190c1186b0c46ce9a73a9617659fa25fcd259454713c4aa", kill_on_drop: false }`
[INFO] [stdout] 1478b58fd01d9b40f190c1186b0c46ce9a73a9617659fa25fcd259454713c4aa
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a2e9b8bd657c758ba87b44fa30f1dd61fa1f662ebdfd2664581bec66bf0dcb69
[INFO] running `Command { std: "docker" "start" "-a" "a2e9b8bd657c758ba87b44fa30f1dd61fa1f662ebdfd2664581bec66bf0dcb69", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Expression` is more private than the item `Derivative`
[INFO] [stderr]   --> src/diff_eq.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | pub struct Derivative<Expr: Expression, Variable: self::Variable> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ struct `Derivative` is reachable at visibility `pub`
[INFO] [stderr]    |
[INFO] [stderr] note: but trait `Expression` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/diff_eq.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | trait Expression {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Node2D<const I: usize, const J: usize> {
[INFO] [stderr]   |            ------ field in this struct
[INFO] [stderr] 7 |     /// The value of this node when evaluating the finite difference operator on the stencil
[INFO] [stderr] 8 |     value: f64,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Expr` is never used
[INFO] [stderr]   --> src/diff_eq.rs:14:6
[INFO] [stderr]    |
[INFO] [stderr] 14 | enum Expr {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `eval` is never used
[INFO] [stderr]   --> src/diff_eq.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | trait Expression {
[INFO] [stderr]    |       ---------- associated function in this trait
[INFO] [stderr] 19 |     fn eval() -> Expr;
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `discreet-common` (lib) generated 4 warnings
[INFO] [stderr] warning: `discreet-common` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/discreet_common-eeba5082593cc4e9)
[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" "a2e9b8bd657c758ba87b44fa30f1dd61fa1f662ebdfd2664581bec66bf0dcb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e9b8bd657c758ba87b44fa30f1dd61fa1f662ebdfd2664581bec66bf0dcb69", kill_on_drop: false }`
[INFO] [stdout] a2e9b8bd657c758ba87b44fa30f1dd61fa1f662ebdfd2664581bec66bf0dcb69