[INFO] fetching crate loom 0.7.1... [INFO] checking loom-0.7.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate loom 0.7.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate loom 0.7.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate loom 0.7.1 [INFO] finished tweaking crates.io crate loom 0.7.1 [INFO] tweaked toml for crates.io crate loom 0.7.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 58 packages [INFO] [stderr] Adding generator v0.7.5 (latest: v0.8.1) [INFO] [stderr] Adding nu-ansi-term v0.46.0 (latest: v0.50.0) [INFO] [stderr] Adding regex-automata v0.1.10 (latest: v0.4.6) [INFO] [stderr] Adding regex-syntax v0.6.29 (latest: v0.8.3) [INFO] [stderr] Adding windows v0.48.0 (latest: v0.54.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf54a14c96fc9929707730493772b15da3e7b9d89c3c6d8902658c45f1e54b76 [INFO] running `Command { std: "docker" "start" "-a" "cf54a14c96fc9929707730493772b15da3e7b9d89c3c6d8902658c45f1e54b76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf54a14c96fc9929707730493772b15da3e7b9d89c3c6d8902658c45f1e54b76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf54a14c96fc9929707730493772b15da3e7b9d89c3c6d8902658c45f1e54b76", kill_on_drop: false }` [INFO] [stdout] cf54a14c96fc9929707730493772b15da3e7b9d89c3c6d8902658c45f1e54b76 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 442044f394d7d3eda6ecc3f7a61b8937e4fb08b11693e4705aa259aaa774d3ef [INFO] running `Command { std: "docker" "start" "-a" "442044f394d7d3eda6ecc3f7a61b8937e4fb08b11693e4705aa259aaa774d3ef", kill_on_drop: false }` [INFO] [stderr] Compiling rustversion v1.0.14 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling generator v0.7.5 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking loom v0.7.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `generator` is imported redundantly [INFO] [stdout] --> src/rt/scheduler.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use generator::{self, Generator, Gn}; [INFO] [stdout] | ^^^^ the item `generator` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `generator` is imported redundantly [INFO] [stdout] --> src/rt/scheduler.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use generator::{self, Generator, Gn}; [INFO] [stdout] | ^^^^ the item `generator` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rt/thread.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(Location), [INFO] [stdout] | ------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rt/thread.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(Location), [INFO] [stdout] | ------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.17s [INFO] running `Command { std: "docker" "inspect" "442044f394d7d3eda6ecc3f7a61b8937e4fb08b11693e4705aa259aaa774d3ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "442044f394d7d3eda6ecc3f7a61b8937e4fb08b11693e4705aa259aaa774d3ef", kill_on_drop: false }` [INFO] [stdout] 442044f394d7d3eda6ecc3f7a61b8937e4fb08b11693e4705aa259aaa774d3ef [INFO] checking loom-0.7.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate loom 0.7.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate loom 0.7.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate loom 0.7.1 [INFO] finished tweaking crates.io crate loom 0.7.1 [INFO] tweaked toml for crates.io crate loom 0.7.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 490cab935013dce36fea4312b9ce64ab188e201c58c4ca25183212235932bf1b [INFO] running `Command { std: "docker" "start" "-a" "490cab935013dce36fea4312b9ce64ab188e201c58c4ca25183212235932bf1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "490cab935013dce36fea4312b9ce64ab188e201c58c4ca25183212235932bf1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "490cab935013dce36fea4312b9ce64ab188e201c58c4ca25183212235932bf1b", kill_on_drop: false }` [INFO] [stdout] 490cab935013dce36fea4312b9ce64ab188e201c58c4ca25183212235932bf1b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] abe032a5ec5d4917371f253bb816a5a59e62bd584c10c486745c05e8c8b3506d [INFO] running `Command { std: "docker" "start" "-a" "abe032a5ec5d4917371f253bb816a5a59e62bd584c10c486745c05e8c8b3506d", kill_on_drop: false }` [INFO] [stderr] Compiling rustversion v1.0.14 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Compiling generator v0.7.5 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking loom v0.7.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `generator` is imported redundantly [INFO] [stdout] --> src/rt/scheduler.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use generator::{self, Generator, Gn}; [INFO] [stdout] | ^^^^ the item `generator` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `generator` is imported redundantly [INFO] [stdout] --> src/rt/scheduler.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use generator::{self, Generator, Gn}; [INFO] [stdout] | ^^^^ the item `generator` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rt/thread.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(Location), [INFO] [stdout] | ------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rt/thread.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(Location), [INFO] [stdout] | ------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 79 | Blocked(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/fence.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `loom` (test "fence") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> tests/atomic.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `loom` (test "atomic") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "abe032a5ec5d4917371f253bb816a5a59e62bd584c10c486745c05e8c8b3506d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abe032a5ec5d4917371f253bb816a5a59e62bd584c10c486745c05e8c8b3506d", kill_on_drop: false }` [INFO] [stdout] abe032a5ec5d4917371f253bb816a5a59e62bd584c10c486745c05e8c8b3506d