[INFO] fetching crate lexicon 0.1.2...
[INFO] checking lexicon-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lexicon 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate lexicon 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 lexicon 0.1.2
[INFO] finished tweaking crates.io crate lexicon 0.1.2
[INFO] tweaked toml for crates.io crate lexicon 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate lexicon 0.1.2 already has a lockfile, it will not be regenerated
[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] 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] a8b0f037460748f8692d81b9cb74ee81a100451361486e93fd0776f7f38cc631
[INFO] running `Command { std: "docker" "start" "-a" "a8b0f037460748f8692d81b9cb74ee81a100451361486e93fd0776f7f38cc631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b0f037460748f8692d81b9cb74ee81a100451361486e93fd0776f7f38cc631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b0f037460748f8692d81b9cb74ee81a100451361486e93fd0776f7f38cc631", kill_on_drop: false }`
[INFO] [stdout] a8b0f037460748f8692d81b9cb74ee81a100451361486e93fd0776f7f38cc631
[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] 3acfe9033679c5186bf17c2f5d83a01eab557bcb5ec02ff95496b1c4950456ea
[INFO] running `Command { std: "docker" "start" "-a" "3acfe9033679c5186bf17c2f5d83a01eab557bcb5ec02ff95496b1c4950456ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lexicon v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `get_term` and `get` are never used
[INFO] [stdout]   --> src/lex.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Lexicon {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |   pub fn get_term(&self, name: String) -> Option<&Term> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |   pub fn get() -> Lexicon {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]   --> src/lex.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Lexicon {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |   pub fn get() -> Lexicon {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `Command { std: "docker" "inspect" "3acfe9033679c5186bf17c2f5d83a01eab557bcb5ec02ff95496b1c4950456ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3acfe9033679c5186bf17c2f5d83a01eab557bcb5ec02ff95496b1c4950456ea", kill_on_drop: false }`
[INFO] [stdout] 3acfe9033679c5186bf17c2f5d83a01eab557bcb5ec02ff95496b1c4950456ea
[INFO] checking lexicon-0.1.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate lexicon 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate lexicon 0.1.2 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lexicon 0.1.2
[INFO] finished tweaking crates.io crate lexicon 0.1.2
[INFO] tweaked toml for crates.io crate lexicon 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate lexicon 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beff82a941300adcd9a277964d48bd12472c5a4e37d8c39aba745cb34cb841cc
[INFO] running `Command { std: "docker" "start" "-a" "beff82a941300adcd9a277964d48bd12472c5a4e37d8c39aba745cb34cb841cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beff82a941300adcd9a277964d48bd12472c5a4e37d8c39aba745cb34cb841cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beff82a941300adcd9a277964d48bd12472c5a4e37d8c39aba745cb34cb841cc", kill_on_drop: false }`
[INFO] [stdout] beff82a941300adcd9a277964d48bd12472c5a4e37d8c39aba745cb34cb841cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 682a231f41844d6ea92325cc70dfa0557f9cb00a161e0eeac5b4f49fa6920f45
[INFO] running `Command { std: "docker" "start" "-a" "682a231f41844d6ea92325cc70dfa0557f9cb00a161e0eeac5b4f49fa6920f45", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lexicon v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `get_term` and `get` are never used
[INFO] [stdout]   --> src/lex.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Lexicon {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |   pub fn get_term(&self, name: String) -> Option<&Term> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |   pub fn get() -> Lexicon {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get` is never used
[INFO] [stdout]   --> src/lex.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Lexicon {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |   pub fn get() -> Lexicon {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.33s
[INFO] running `Command { std: "docker" "inspect" "682a231f41844d6ea92325cc70dfa0557f9cb00a161e0eeac5b4f49fa6920f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "682a231f41844d6ea92325cc70dfa0557f9cb00a161e0eeac5b4f49fa6920f45", kill_on_drop: false }`
[INFO] [stdout] 682a231f41844d6ea92325cc70dfa0557f9cb00a161e0eeac5b4f49fa6920f45