[INFO] fetching crate rusty-forest 0.1.2... [INFO] checking rusty-forest-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate rusty-forest 0.1.2 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate rusty-forest 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 rusty-forest 0.1.2 [INFO] finished tweaking crates.io crate rusty-forest 0.1.2 [INFO] tweaked toml for crates.io crate rusty-forest 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate rusty-forest 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.96 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d6360abca9ad9e8933adf8ca9bb1f6d172971ec341cb6c4da7a88bc956433574 [INFO] running `Command { std: "docker" "start" "-a" "d6360abca9ad9e8933adf8ca9bb1f6d172971ec341cb6c4da7a88bc956433574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d6360abca9ad9e8933adf8ca9bb1f6d172971ec341cb6c4da7a88bc956433574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6360abca9ad9e8933adf8ca9bb1f6d172971ec341cb6c4da7a88bc956433574", kill_on_drop: false }` [INFO] [stdout] d6360abca9ad9e8933adf8ca9bb1f6d172971ec341cb6c4da7a88bc956433574 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 199a47c3d4651fe48535d0c3557b22431d4d70583e5f451f69c74ab0821f381d [INFO] running `Command { std: "docker" "start" "-a" "199a47c3d4651fe48535d0c3557b22431d4d70583e5f451f69c74ab0821f381d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.96 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking rusty-forest v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> src/tree.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::string::ToString; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/tree.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> src/grow.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::string::ToString; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> src/tree.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::string::ToString; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/tree.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `ToString` is imported redundantly [INFO] [stdout] --> src/grow.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::string::ToString; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `ToString` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_lowercase` that must be used [INFO] [stdout] --> src/main.rs:622:13 [INFO] [stdout] | [INFO] [stdout] 622 | t.to_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the lowercase string as a new String, without modifying the original [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 622 | let _ = t.to_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_lowercase` that must be used [INFO] [stdout] --> src/main.rs:688:13 [INFO] [stdout] | [INFO] [stdout] 688 | x.to_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the lowercase string as a new String, without modifying the original [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 688 | let _ = x.to_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_lowercase` that must be used [INFO] [stdout] --> src/main.rs:622:13 [INFO] [stdout] | [INFO] [stdout] 622 | t.to_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the lowercase string as a new String, without modifying the original [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 622 | let _ = t.to_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `str::::to_lowercase` that must be used [INFO] [stdout] --> src/main.rs:688:13 [INFO] [stdout] | [INFO] [stdout] 688 | x.to_lowercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the lowercase string as a new String, without modifying the original [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 688 | let _ = x.to_lowercase(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.15s [INFO] running `Command { std: "docker" "inspect" "199a47c3d4651fe48535d0c3557b22431d4d70583e5f451f69c74ab0821f381d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "199a47c3d4651fe48535d0c3557b22431d4d70583e5f451f69c74ab0821f381d", kill_on_drop: false }` [INFO] [stdout] 199a47c3d4651fe48535d0c3557b22431d4d70583e5f451f69c74ab0821f381d [INFO] checking rusty-forest-0.1.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate rusty-forest 0.1.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate rusty-forest 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 rusty-forest 0.1.2 [INFO] finished tweaking crates.io crate rusty-forest 0.1.2 [INFO] tweaked toml for crates.io crate rusty-forest 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate rusty-forest 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 850ebda0e6f590dd940fd61c26277861d8bd50d90577917f68455fadb43be735 [INFO] running `Command { std: "docker" "start" "-a" "850ebda0e6f590dd940fd61c26277861d8bd50d90577917f68455fadb43be735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "850ebda0e6f590dd940fd61c26277861d8bd50d90577917f68455fadb43be735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "850ebda0e6f590dd940fd61c26277861d8bd50d90577917f68455fadb43be735", kill_on_drop: false }` [INFO] [stdout] 850ebda0e6f590dd940fd61c26277861d8bd50d90577917f68455fadb43be735 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6591aa53d4412c5fbf9dc8657958a5c063ca3826ff9fbdeb8ee3dbbd2ce350aa [INFO] running `Command { std: "docker" "start" "-a" "6591aa53d4412c5fbf9dc8657958a5c063ca3826ff9fbdeb8ee3dbbd2ce350aa", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.96 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `chrono` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "6591aa53d4412c5fbf9dc8657958a5c063ca3826ff9fbdeb8ee3dbbd2ce350aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6591aa53d4412c5fbf9dc8657958a5c063ca3826ff9fbdeb8ee3dbbd2ce350aa", kill_on_drop: false }` [INFO] [stdout] 6591aa53d4412c5fbf9dc8657958a5c063ca3826ff9fbdeb8ee3dbbd2ce350aa