[INFO] cloning repository https://github.com/fiit-ba/rust-course [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fiit-ba/rust-course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffiit-ba%2Frust-course", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffiit-ba%2Frust-course'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e6668a498e37bb0805f530b06d79e74a3af93439 [INFO] testing fiit-ba/rust-course against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffiit-ba%2Frust-course" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/fiit-ba/rust-course [INFO] finished tweaking git repo https://github.com/fiit-ba/rust-course [INFO] tweaked toml for git repo https://github.com/fiit-ba/rust-course written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/fiit-ba/rust-course 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 git repo https://github.com/fiit-ba/rust-course 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pin-project-internal v1.0.12 [INFO] [stderr] Downloaded tracing-attributes v0.1.23 [INFO] [stderr] Downloaded plotters-svg v0.3.3 [INFO] [stderr] Downloaded tokio-macros v2.0.0 [INFO] [stderr] Downloaded serde_path_to_error v0.1.11 [INFO] [stderr] Downloaded plotters-backend v0.3.4 [INFO] [stderr] Downloaded axum-core v0.3.3 [INFO] [stderr] Downloaded matchit v0.7.0 [INFO] [stderr] Downloaded async-trait v0.1.68 [INFO] [stderr] Downloaded criterion-plot v0.4.5 [INFO] [stderr] Downloaded tokio-stream v0.1.12 [INFO] [stderr] Downloaded pin-project v1.0.12 [INFO] [stderr] Downloaded crossbeam-utils v0.8.15 [INFO] [stderr] Downloaded unsafe-libyaml v0.2.7 [INFO] [stderr] Downloaded tracing-core v0.1.30 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.14 [INFO] [stderr] Downloaded serde_yaml v0.9.19 [INFO] [stderr] Downloaded crossbeam-channel v0.5.7 [INFO] [stderr] Downloaded tokio-util v0.7.7 [INFO] [stderr] Downloaded criterion v0.3.6 [INFO] [stderr] Downloaded plotters v0.3.4 [INFO] [stderr] Downloaded serde_json v1.0.95 [INFO] [stderr] Downloaded axum v0.6.12 [INFO] [stderr] Downloaded tracing-subscriber v0.3.16 [INFO] [stderr] Downloaded hyper v0.14.25 [INFO] [stderr] Downloaded tokio v1.27.0 [INFO] [stderr] Downloaded csv v1.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 340e22993a9d685a8ed6388e54a854f082c749296b054e04c2727b3706f1a41f [INFO] running `Command { std: "docker" "start" "-a" "340e22993a9d685a8ed6388e54a854f082c749296b054e04c2727b3706f1a41f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "340e22993a9d685a8ed6388e54a854f082c749296b054e04c2727b3706f1a41f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "340e22993a9d685a8ed6388e54a854f082c749296b054e04c2727b3706f1a41f", kill_on_drop: false }` [INFO] [stdout] 340e22993a9d685a8ed6388e54a854f082c749296b054e04c2727b3706f1a41f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c8f4edd15776d98157f70ed878fc3712072a70db90392d8d5930114df4bf9bc8 [INFO] running `Command { std: "docker" "start" "-a" "c8f4edd15776d98157f70ed878fc3712072a70db90392d8d5930114df4bf9bc8", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `01` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)` has the same output filename as the bin target `01` in package `borrowing v0.1.0 (/opt/rustwide/workdir/exercises/A3/0-borrowing)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/01 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `01` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)` has the same output filename as the bin target `01` in package `borrowing v0.1.0 (/opt/rustwide/workdir/exercises/A3/0-borrowing)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/01.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `02` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)` has the same output filename as the bin target `02` in package `borrowing v0.1.0 (/opt/rustwide/workdir/exercises/A3/0-borrowing)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/02 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `02` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)` has the same output filename as the bin target `02` in package `borrowing v0.1.0 (/opt/rustwide/workdir/exercises/A3/0-borrowing)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/02.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `01` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `01` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/01 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `01` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `01` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/01.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `02` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `02` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/02 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `02` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `02` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/02.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `03` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `03` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/03 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `03` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `03` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/03.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `04` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `04` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/04 [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] warning: output filename collision. [INFO] [stderr] The bin target `04` in package `exercise-a1-2 v0.1.0 (/opt/rustwide/workdir/exercises/A1/2-move-semantics)` has the same output filename as the bin target `04` in package `exercise-a1-1 v0.1.0 (/opt/rustwide/workdir/exercises/A1/1-basic-syntax)`. [INFO] [stderr] Colliding filename is: /opt/rustwide/target/x86_64-unknown-linux-musl/debug/04.dwp [INFO] [stderr] The targets should have unique names. [INFO] [stderr] Consider changing their names to be unique or compiling them separately. [INFO] [stderr] This may become a hard error in the future; see . [INFO] [stderr] Compiling proc-macro2 v1.0.56 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling serde_derive v1.0.159 [INFO] [stderr] Compiling futures-sink v0.3.28 [INFO] [stderr] Compiling serde v1.0.159 [INFO] [stderr] Compiling itoa v1.0.6 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling parking_lot_core v0.9.7 [INFO] [stderr] Compiling bytes v1.4.0 [INFO] [stderr] Compiling once_cell v1.17.1 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling tokio v1.27.0 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling tracing-core v0.1.30 [INFO] [stderr] Compiling ryu v1.0.13 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Compiling rustversion v1.0.12 [INFO] [stderr] Compiling futures-io v0.3.28 [INFO] [stderr] Compiling serde_json v1.0.95 [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Compiling memoffset v0.8.0 [INFO] [stderr] Compiling anyhow v1.0.70 [INFO] [stderr] Compiling crossbeam-epoch v0.9.14 [INFO] [stderr] Compiling async-trait v0.1.68 [INFO] [stderr] Compiling overload v0.1.1 [INFO] [stderr] Compiling sharded-slab v0.1.4 [INFO] [stderr] Compiling thread_local v1.1.7 [INFO] [stderr] Compiling nu-ansi-term v0.46.0 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling http v0.2.9 [INFO] [stderr] Compiling try-lock v0.2.4 [INFO] [stderr] Compiling tracing-log v0.1.3 [INFO] [stderr] Compiling percent-encoding v2.2.0 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c8f4edd15776d98157f70ed878fc3712072a70db90392d8d5930114df4bf9bc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8f4edd15776d98157f70ed878fc3712072a70db90392d8d5930114df4bf9bc8", kill_on_drop: false }` [INFO] [stdout] c8f4edd15776d98157f70ed878fc3712072a70db90392d8d5930114df4bf9bc8