[INFO] fetching crate kind-tree 0.1.3...
[INFO] checking kind-tree-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate kind-tree 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate kind-tree 0.1.3 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 kind-tree 0.1.3
[INFO] finished tweaking crates.io crate kind-tree 0.1.3
[INFO] tweaked toml for crates.io crate kind-tree 0.1.3 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 69 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v3.2.25 (latest: v4.5.4)
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[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding sysinfo v0.29.11 (latest: v0.30.8)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kind-span v0.1.3
[INFO] [stderr]   Downloaded HOPA v0.1.2
[INFO] [stderr]   Downloaded clap_derive v3.2.25
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.11
[INFO] [stderr]   Downloaded crossbeam v0.8.4
[INFO] [stderr]   Downloaded highlight_error v0.1.1
[INFO] [stderr]   Downloaded ntapi v0.4.1
[INFO] [stderr]   Downloaded sysinfo v0.29.11
[INFO] [stderr]   Downloaded hvm v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6a965f84f6da1d9145324db8467d612d0160e03d6a3d7d88f242b61fee75d642
[INFO] running `Command { std: "docker" "start" "-a" "6a965f84f6da1d9145324db8467d612d0160e03d6a3d7d88f242b61fee75d642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a965f84f6da1d9145324db8467d612d0160e03d6a3d7d88f242b61fee75d642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a965f84f6da1d9145324db8467d612d0160e03d6a3d7d88f242b61fee75d642", kill_on_drop: false }`
[INFO] [stdout] 6a965f84f6da1d9145324db8467d612d0160e03d6a3d7d88f242b61fee75d642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 652df7eacd59ffd6c7a9a86c7a26f5416ca250efd09225b7dcdd2f939df06f97
[INFO] running `Command { std: "docker" "start" "-a" "652df7eacd59ffd6c7a9a86c7a26f5416ca250efd09225b7dcdd2f939df06f97", kill_on_drop: false }`
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking highlight_error v0.1.1
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking sysinfo v0.29.11
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking kind-span v0.1.3
[INFO] [stderr]     Checking HOPA v0.1.2
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking hvm v1.0.11
[INFO] [stderr]     Checking kind-tree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `Expr` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/concrete/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use expr::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Expr` is imported redundantly
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 | pub use expr::*;
[INFO] [stdout]    |         ------- the item `Expr` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `visit_opt` is imported redundantly
[INFO] [stdout]   --> src/concrete/visitor.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | / macro_rules! visit_opt {
[INFO] [stdout] 29 | |     ($args:expr, $pat:pat => $fun:expr) => {
[INFO] [stdout] 30 | |         match $args {
[INFO] [stdout] 31 | |             Some($pat) => $fun,
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     };
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `visit_opt` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 39 |   pub(crate) use visit_opt;
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `visit_vec` is imported redundantly
[INFO] [stdout]   --> src/concrete/visitor.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! visit_vec {
[INFO] [stdout] 20 | |     ($args:expr, $pat:pat => $fun:expr) => {
[INFO] [stdout] 21 | |         for $pat in $args {
[INFO] [stdout] 22 | |             $fun
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- the item `visit_vec` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 40 |   pub(crate) use visit_vec;
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `Expr` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/concrete/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use expr::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Expr` is imported redundantly
[INFO] [stdout]   --> src/concrete/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 | pub use expr::*;
[INFO] [stdout]    |         ------- the item `Expr` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `visit_opt` is imported redundantly
[INFO] [stdout]   --> src/concrete/visitor.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | / macro_rules! visit_opt {
[INFO] [stdout] 29 | |     ($args:expr, $pat:pat => $fun:expr) => {
[INFO] [stdout] 30 | |         match $args {
[INFO] [stdout] 31 | |             Some($pat) => $fun,
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     };
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `visit_opt` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 39 |   pub(crate) use visit_opt;
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `visit_vec` is imported redundantly
[INFO] [stdout]   --> src/concrete/visitor.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! visit_vec {
[INFO] [stdout] 20 | |     ($args:expr, $pat:pat => $fun:expr) => {
[INFO] [stdout] 21 | |         for $pat in $args {
[INFO] [stdout] 22 | |             $fun
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- the item `visit_vec` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 40 |   pub(crate) use visit_vec;
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "652df7eacd59ffd6c7a9a86c7a26f5416ca250efd09225b7dcdd2f939df06f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652df7eacd59ffd6c7a9a86c7a26f5416ca250efd09225b7dcdd2f939df06f97", kill_on_drop: false }`
[INFO] [stdout] 652df7eacd59ffd6c7a9a86c7a26f5416ca250efd09225b7dcdd2f939df06f97