[INFO] fetching crate immutable-seq 0.1.2... [INFO] checking immutable-seq-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate immutable-seq 0.1.2 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate immutable-seq 0.1.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate immutable-seq 0.1.2 [INFO] finished tweaking crates.io crate immutable-seq 0.1.2 [INFO] tweaked toml for crates.io crate immutable-seq 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 28 packages [INFO] [stderr] Adding aho-corasick v0.5.3 (latest: v1.1.3) [INFO] [stderr] Adding env_logger v0.3.5 (latest: v0.11.3) [INFO] [stderr] Adding log v0.3.9 (latest: v0.4.21) [INFO] [stderr] Adding memchr v0.1.11 (latest: v2.7.2) [INFO] [stderr] Adding quickcheck v0.4.1 (latest: v1.0.3) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding regex v0.1.80 (latest: v1.10.4) [INFO] [stderr] Adding regex-syntax v0.3.9 (latest: v0.8.3) [INFO] [stderr] Adding thread-id v2.0.0 (latest: v4.2.1) [INFO] [stderr] Adding thread_local v0.2.7 (latest: v1.1.8) [INFO] [stderr] Adding unreachable v0.1.1 (latest: v1.0.0) [INFO] [stderr] Adding utf8-ranges v0.1.3 (latest: v1.0.5) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded quickcheck v0.4.1 [INFO] [stderr] Downloaded env_logger v0.3.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f9747b6db4cf90f17ad83943147eb1c7bef4706ee378187269fab548f4adf72f [INFO] running `Command { std: "docker" "start" "-a" "f9747b6db4cf90f17ad83943147eb1c7bef4706ee378187269fab548f4adf72f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f9747b6db4cf90f17ad83943147eb1c7bef4706ee378187269fab548f4adf72f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9747b6db4cf90f17ad83943147eb1c7bef4706ee378187269fab548f4adf72f", kill_on_drop: false }` [INFO] [stdout] f9747b6db4cf90f17ad83943147eb1c7bef4706ee378187269fab548f4adf72f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6ea5344ccb96abe59dddeb798e61c7414dced86bebc1114ae5432b587df69d4 [INFO] running `Command { std: "docker" "start" "-a" "f6ea5344ccb96abe59dddeb798e61c7414dced86bebc1114ae5432b587df69d4", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Checking debug_unreachable v0.1.1 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Checking env_logger v0.3.5 [INFO] [stderr] Checking quickcheck v0.4.1 [INFO] [stderr] Checking immutable-seq v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lazy.rs:28:49 [INFO] [stdout] | [INFO] [stdout] 28 | $crate::lazy::Thunk::new(move || { $($e);* }) [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lazy.rs:36:56 [INFO] [stdout] | [INFO] [stdout] 36 | $crate::lazy::Thunk::new(move || { value({$($e);*}) }) [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lazy.rs:28:49 [INFO] [stdout] | [INFO] [stdout] 28 | $crate::lazy::Thunk::new(move || { $($e);* }) [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Measure` is imported redundantly [INFO] [stdout] --> src/node.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 234 | use super::*; [INFO] [stdout] | -------- the item `Measure` is already imported here [INFO] [stdout] 235 | use measure::Measure; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lazy.rs:36:56 [INFO] [stdout] | [INFO] [stdout] 36 | $crate::lazy::Thunk::new(move || { value({$($e);*}) }) [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FingerTree` is imported redundantly [INFO] [stdout] --> src/finger_tree.rs:608:9 [INFO] [stdout] | [INFO] [stdout] 608 | use super::FingerTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] 609 | use super::*; [INFO] [stdout] | -------- the item `FingerTree` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `node3` is imported redundantly [INFO] [stdout] --> src/finger_tree.rs:610:29 [INFO] [stdout] | [INFO] [stdout] 609 | use super::*; [INFO] [stdout] | -------- the item `node3` is already imported here [INFO] [stdout] 610 | use node::{leaf, node2, node3}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `One` is imported redundantly [INFO] [stdout] --> src/finger_tree.rs:611:24 [INFO] [stdout] | [INFO] [stdout] 609 | use super::*; [INFO] [stdout] | -------- the item `One` is already imported here [INFO] [stdout] 610 | use node::{leaf, node2, node3}; [INFO] [stdout] 611 | use digit::Digit::{One,Two}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Two` is imported redundantly [INFO] [stdout] --> src/finger_tree.rs:611:28 [INFO] [stdout] | [INFO] [stdout] 609 | use super::*; [INFO] [stdout] | -------- the item `Two` is already imported here [INFO] [stdout] 610 | use node::{leaf, node2, node3}; [INFO] [stdout] 611 | use digit::Digit::{One,Two}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lazy.rs:183:16 [INFO] [stdout] | [INFO] [stdout] 183 | inner: Box> [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 183 | inner: Box> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lazy.rs:183:16 [INFO] [stdout] | [INFO] [stdout] 183 | inner: Box> [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 183 | inner: Box> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lazy.rs:197:23 [INFO] [stdout] | [INFO] [stdout] 197 | }) as Box> [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 197 | }) as Box> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lazy.rs:197:23 [INFO] [stdout] | [INFO] [stdout] 197 | }) as Box> [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 197 | }) as Box> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> tests/seq_quickcheck.rs:125:10 [INFO] [stdout] | [INFO] [stdout] 125 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> tests/seq_quickcheck.rs:522:13 [INFO] [stdout] | [INFO] [stdout] 522 | try!(self.apply_action(action)) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/seq_quickcheck.rs:320:26 [INFO] [stdout] | [INFO] [stdout] 320 | action_shrinker: Box>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 320 | action_shrinker: Box>>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/seq_quickcheck.rs:150:29 [INFO] [stdout] | [INFO] [stdout] 150 | fn shrink(&self) -> Box>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 150 | fn shrink(&self) -> Box>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/seq_quickcheck.rs:368:29 [INFO] [stdout] | [INFO] [stdout] 368 | fn shrink(&self) -> Box>> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 368 | fn shrink(&self) -> Box>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s [INFO] running `Command { std: "docker" "inspect" "f6ea5344ccb96abe59dddeb798e61c7414dced86bebc1114ae5432b587df69d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6ea5344ccb96abe59dddeb798e61c7414dced86bebc1114ae5432b587df69d4", kill_on_drop: false }` [INFO] [stdout] f6ea5344ccb96abe59dddeb798e61c7414dced86bebc1114ae5432b587df69d4