[INFO] fetching crate matrix-calc 0.1.0...
[INFO] testing matrix-calc-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate matrix-calc 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate matrix-calc 0.1.0
[INFO] finished tweaking crates.io crate matrix-calc 0.1.0
[INFO] tweaked toml for crates.io crate matrix-calc 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix-calc 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f7927fdbffd1b2ed7720b73154ed9717fae5fda9fa5a547305d6c9cd42f4218
[INFO] running `Command { std: "docker" "start" "-a" "9f7927fdbffd1b2ed7720b73154ed9717fae5fda9fa5a547305d6c9cd42f4218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f7927fdbffd1b2ed7720b73154ed9717fae5fda9fa5a547305d6c9cd42f4218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7927fdbffd1b2ed7720b73154ed9717fae5fda9fa5a547305d6c9cd42f4218", kill_on_drop: false }`
[INFO] [stdout] 9f7927fdbffd1b2ed7720b73154ed9717fae5fda9fa5a547305d6c9cd42f4218
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2fb8820f62b8821d67bf1532745a4dfb2521483ebd153fca1735d6cd757c3ae
[INFO] running `Command { std: "docker" "start" "-a" "d2fb8820f62b8821d67bf1532745a4dfb2521483ebd153fca1735d6cd757c3ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrix-calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "d2fb8820f62b8821d67bf1532745a4dfb2521483ebd153fca1735d6cd757c3ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2fb8820f62b8821d67bf1532745a4dfb2521483ebd153fca1735d6cd757c3ae", kill_on_drop: false }`
[INFO] [stdout] d2fb8820f62b8821d67bf1532745a4dfb2521483ebd153fca1735d6cd757c3ae
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb04edf14ac4a851012855e7a85b03695e36af6ef5e6073268ef31c8f1dcefa
[INFO] running `Command { std: "docker" "start" "-a" "acb04edf14ac4a851012855e7a85b03695e36af6ef5e6073268ef31c8f1dcefa", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrix-calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]  --> tests/substraction.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use matrix::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^ use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `matrix`, use `cargo add matrix` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrix-calc` (test "substraction") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `matrix`
[INFO] [stdout]  --> tests/add.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use matrix::{create_matrix, create_matrix_row};
[INFO] [stdout]   |     ^^^^^^ help: a similar path exists: `matrix_calc::matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]  --> tests/division.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use matrix::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^ use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `matrix`, use `cargo add matrix` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrix-calc` (test "division") due to 1 previous error
[INFO] [stderr] error: could not compile `matrix-calc` (test "add") due to 1 previous error
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]  --> tests/multiplication.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use matrix::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^ use of unresolved module or unlinked crate `matrix`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `matrix`, use `cargo add matrix` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matrix-calc` (test "multiplication") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "acb04edf14ac4a851012855e7a85b03695e36af6ef5e6073268ef31c8f1dcefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb04edf14ac4a851012855e7a85b03695e36af6ef5e6073268ef31c8f1dcefa", kill_on_drop: false }`
[INFO] [stdout] acb04edf14ac4a851012855e7a85b03695e36af6ef5e6073268ef31c8f1dcefa