[INFO] fetching crate certified-vars 0.1.4...
[INFO] checking certified-vars-0.1.4 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate certified-vars 0.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate certified-vars 0.1.4 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate certified-vars 0.1.4
[INFO] finished tweaking crates.io crate certified-vars 0.1.4
[INFO] tweaked toml for crates.io crate certified-vars 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "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 candid_derive v0.4.5
[INFO] [stderr]   Downloaded ic-types v0.5.0
[INFO] [stderr]   Downloaded ic-cdk v0.5.7
[INFO] [stderr]   Downloaded candid v0.7.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca6123934fce3f361a391a5b302fd63614523f30719bda51042b2a4c361e0db5
[INFO] running `Command { std: "docker" "start" "-a" "ca6123934fce3f361a391a5b302fd63614523f30719bda51042b2a4c361e0db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca6123934fce3f361a391a5b302fd63614523f30719bda51042b2a4c361e0db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6123934fce3f361a391a5b302fd63614523f30719bda51042b2a4c361e0db5", kill_on_drop: false }`
[INFO] [stdout] ca6123934fce3f361a391a5b302fd63614523f30719bda51042b2a4c361e0db5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53b28d9eae3641d28b9c18fd317428328f1815ca11540639313aeff1ffc8791d
[INFO] running `Command { std: "docker" "start" "-a" "53b28d9eae3641d28b9c18fd317428328f1815ca11540639313aeff1ffc8791d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling winnow v0.5.37
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling indexmap v2.2.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling ena v0.14.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]    Compiling is-terminal v0.4.10
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking lalrpop-util v0.19.12
[INFO] [stderr]    Compiling lalrpop v0.19.12
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling binread_derive v2.1.0
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]    Compiling candid_derive v0.4.5
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]     Checking binread v2.2.0
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking ic-types v0.5.0
[INFO] [stderr]    Compiling candid v0.7.18
[INFO] [stderr]     Checking ic-cdk v0.5.7
[INFO] [stderr]     Checking certified-vars v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:354:13
[INFO] [stdout]     |
[INFO] [stdout] 354 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:405:13
[INFO] [stdout]     |
[INFO] [stdout] 405 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:927:17
[INFO] [stdout]     |
[INFO] [stdout] 927 |             let mut result = go(self.root, key, value);
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:886:13
[INFO] [stdout]     |
[INFO] [stdout] 886 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/rbtree.rs:1121:9
[INFO] [stdout]      |
[INFO] [stdout] 1121 |     let mut x = (*h).left;
[INFO] [stdout]      |         ----^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/rbtree.rs:1139:9
[INFO] [stdout]      |
[INFO] [stdout] 1139 |     let mut x = (*h).right;
[INFO] [stdout]      |         ----^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:354:13
[INFO] [stdout]     |
[INFO] [stdout] 354 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:405:13
[INFO] [stdout]     |
[INFO] [stdout] 405 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:927:17
[INFO] [stdout]     |
[INFO] [stdout] 927 |             let mut result = go(self.root, key, value);
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rbtree.rs:886:13
[INFO] [stdout]     |
[INFO] [stdout] 886 |             mut h: *mut Node<K, V>,
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/rbtree.rs:1121:9
[INFO] [stdout]      |
[INFO] [stdout] 1121 |     let mut x = (*h).left;
[INFO] [stdout]      |         ----^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/rbtree.rs:1139:9
[INFO] [stdout]      |
[INFO] [stdout] 1139 |     let mut x = (*h).right;
[INFO] [stdout]      |         ----^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.80s
[INFO] running `Command { std: "docker" "inspect" "53b28d9eae3641d28b9c18fd317428328f1815ca11540639313aeff1ffc8791d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b28d9eae3641d28b9c18fd317428328f1815ca11540639313aeff1ffc8791d", kill_on_drop: false }`
[INFO] [stdout] 53b28d9eae3641d28b9c18fd317428328f1815ca11540639313aeff1ffc8791d
