[INFO] cloning repository https://github.com/rzhikharevich/defunct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rzhikharevich/defunct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzhikharevich%2Fdefunct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzhikharevich%2Fdefunct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dba3193a780bb1fee0da03d660e6f99427e213a
[INFO] checking rzhikharevich/defunct against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frzhikharevich%2Fdefunct" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rzhikharevich/defunct on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rzhikharevich/defunct
[INFO] finished tweaking git repo https://github.com/rzhikharevich/defunct
[INFO] tweaked toml for git repo https://github.com/rzhikharevich/defunct written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rzhikharevich/defunct already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6890d22ce3496075fefaa033f6d1e0be8b91ffca0e9deace51e9b0f0c90ad6ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6890d22ce3496075fefaa033f6d1e0be8b91ffca0e9deace51e9b0f0c90ad6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6890d22ce3496075fefaa033f6d1e0be8b91ffca0e9deace51e9b0f0c90ad6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6890d22ce3496075fefaa033f6d1e0be8b91ffca0e9deace51e9b0f0c90ad6ac", kill_on_drop: false }`
[INFO] [stdout] 6890d22ce3496075fefaa033f6d1e0be8b91ffca0e9deace51e9b0f0c90ad6ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f3bf1ad809ae7b8f13c5fcf48fbd7d2662b046f0b1694fedb088b7113011e1ce
[INFO] running `Command { std: "docker" "start" "-a" "f3bf1ad809ae7b8f13c5fcf48fbd7d2662b046f0b1694fedb088b7113011e1ce", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.39
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking defunct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/utils.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! opt_err {
[INFO] [stdout] 13 | |     ($x:expr) => (
[INFO] [stdout] 14 | |         match $x {
[INFO] [stdout] 15 | |             Some(y) => y,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     )
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |         'a' ... 'z' | 'A' ... 'Z' => true,
[INFO] [stdout]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:338:27
[INFO] [stdout]     |
[INFO] [stdout] 338 |         'a' ... 'z' | 'A' ... 'Z' => true,
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:345:13
[INFO] [stdout]     |
[INFO] [stdout] 345 |         '0' ... '9' => true,
[INFO] [stdout]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:268:15
[INFO] [stdout]     |
[INFO] [stdout] 268 |     -> Result<(&'a str), ()>
[INFO] [stdout]     |               ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/utils.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! opt_err {
[INFO] [stdout] 13 | |     ($x:expr) => (
[INFO] [stdout] 14 | |         match $x {
[INFO] [stdout] 15 | |             Some(y) => y,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     )
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |         'a' ... 'z' | 'A' ... 'Z' => true,
[INFO] [stdout]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:338:27
[INFO] [stdout]     |
[INFO] [stdout] 338 |         'a' ... 'z' | 'A' ... 'Z' => true,
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tok.rs:345:13
[INFO] [stdout]     |
[INFO] [stdout] 345 |         '0' ... '9' => true,
[INFO] [stdout]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:268:15
[INFO] [stdout]     |
[INFO] [stdout] 268 |     -> Result<(&'a str), ()>
[INFO] [stdout]     |               ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errors`
[INFO] [stdout]   --> src/parser/expr.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     errors: &mut Vec<(Location, Error)>,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrLit`
[INFO] [stdout]   --> src/tok.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     StrLit(Vec<StrLitItem<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_error`
[INFO] [stdout]   --> src/tok.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn is_error(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ok`
[INFO] [stdout]   --> src/tok.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn is_ok(&self) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/tok.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Str(&'a str),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Esc`
[INFO] [stdout]   --> src/tok.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     Esc(char),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tok`
[INFO] [stdout]   --> src/parser/mod.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Tok(TokErrorInfo),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lit`
[INFO] [stdout]   --> src/parser/mod.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Lit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errors`
[INFO] [stdout]   --> src/parser/expr.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     errors: &mut Vec<(Location, Error)>,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrLit`
[INFO] [stdout]   --> src/tok.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     StrLit(Vec<StrLitItem<'a>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_error`
[INFO] [stdout]   --> src/tok.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn is_error(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ok`
[INFO] [stdout]   --> src/tok.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn is_ok(&self) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/tok.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Str(&'a str),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Esc`
[INFO] [stdout]   --> src/tok.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     Esc(char),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tok`
[INFO] [stdout]   --> src/parser/mod.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Tok(TokErrorInfo),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lit`
[INFO] [stdout]   --> src/parser/mod.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Lit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "f3bf1ad809ae7b8f13c5fcf48fbd7d2662b046f0b1694fedb088b7113011e1ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3bf1ad809ae7b8f13c5fcf48fbd7d2662b046f0b1694fedb088b7113011e1ce", kill_on_drop: false }`
[INFO] [stdout] f3bf1ad809ae7b8f13c5fcf48fbd7d2662b046f0b1694fedb088b7113011e1ce