[INFO] fetching crate rual 0.0.2...
[INFO] checking rual-0.0.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate rual 0.0.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rual 0.0.2
[INFO] finished tweaking crates.io crate rual 0.0.2
[INFO] tweaked toml for crates.io crate rual 0.0.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rual 0.0.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0e7c7e0cd481540f3105765e85e46ec011bb42673fe3797cfd83bd6b4cbe324
[INFO] running `Command { std: "docker" "start" "-a" "e0e7c7e0cd481540f3105765e85e46ec011bb42673fe3797cfd83bd6b4cbe324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e7c7e0cd481540f3105765e85e46ec011bb42673fe3797cfd83bd6b4cbe324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e7c7e0cd481540f3105765e85e46ec011bb42673fe3797cfd83bd6b4cbe324", kill_on_drop: false }`
[INFO] [stdout] e0e7c7e0cd481540f3105765e85e46ec011bb42673fe3797cfd83bd6b4cbe324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae1ffe0613fb3a671a83b45ef260b449cf99d817060f26ae3d81ac6a9af92581
[INFO] running `Command { std: "docker" "start" "-a" "ae1ffe0613fb3a671a83b45ef260b449cf99d817060f26ae3d81ac6a9af92581", kill_on_drop: false }`
[INFO] [stderr]     Checking rual v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Punct`
[INFO] [stdout]  --> src/lexing/mod.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::syntax::{Keyword, Punct, Token, TokenType};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> src/execution/mod.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | struct Scope<'t> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/execution/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 136 | impl<'t> Scope<'t> {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/execution/mod.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn lookup(&self, ident: &str) -> Option<&RealmValue> {
[INFO] [stdout]    |                   ^^^^^                         -----------
[INFO] [stdout]    |                   |                             ||
[INFO] [stdout]    |                   |                             |the same lifetime is hidden here
[INFO] [stdout]    |                   |                             the same lifetime is elided here
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn lookup(&self, ident: &str) -> Option<&RealmValue<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/execution/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.exec_expr(&expr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let _ = self.exec_expr(&expr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> src/execution/mod.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | struct Scope<'t> {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/execution/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 136 | impl<'t> Scope<'t> {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/execution/mod.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn lookup(&self, ident: &str) -> Option<&RealmValue> {
[INFO] [stdout]    |                   ^^^^^                         -----------
[INFO] [stdout]    |                   |                             ||
[INFO] [stdout]    |                   |                             |the same lifetime is hidden here
[INFO] [stdout]    |                   |                             the same lifetime is elided here
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn lookup(&self, ident: &str) -> Option<&RealmValue<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/execution/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.exec_expr(&expr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let _ = self.exec_expr(&expr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "ae1ffe0613fb3a671a83b45ef260b449cf99d817060f26ae3d81ac6a9af92581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1ffe0613fb3a671a83b45ef260b449cf99d817060f26ae3d81ac6a9af92581", kill_on_drop: false }`
[INFO] [stdout] ae1ffe0613fb3a671a83b45ef260b449cf99d817060f26ae3d81ac6a9af92581