[INFO] cloning repository https://github.com/ilaborie/rust-waterpourign
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ilaborie/rust-waterpourign" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filaborie%2Frust-waterpourign", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filaborie%2Frust-waterpourign'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4963038a527ca7e6453d054b72aa10d22b53b0cd
[INFO] checking ilaborie/rust-waterpourign against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filaborie%2Frust-waterpourign" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ilaborie/rust-waterpourign 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 git repo https://github.com/ilaborie/rust-waterpourign
[INFO] finished tweaking git repo https://github.com/ilaborie/rust-waterpourign
[INFO] tweaked toml for git repo https://github.com/ilaborie/rust-waterpourign written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ilaborie/rust-waterpourign 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] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-5-tc1/source/waterpouring-wasm/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_assertions v0.6.1
[INFO] [stderr]   Downloaded serde_json v1.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d9e1f3f68be4d68d11c9e85d827dfbec82d20eaddd7845c75e5069475e0c03b6
[INFO] running `Command { std: "docker" "start" "-a" "d9e1f3f68be4d68d11c9e85d827dfbec82d20eaddd7845c75e5069475e0c03b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9e1f3f68be4d68d11c9e85d827dfbec82d20eaddd7845c75e5069475e0c03b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e1f3f68be4d68d11c9e85d827dfbec82d20eaddd7845c75e5069475e0c03b6", kill_on_drop: false }`
[INFO] [stdout] d9e1f3f68be4d68d11c9e85d827dfbec82d20eaddd7845c75e5069475e0c03b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f850c069ff9d3e4e98d8d9ea14156dba931225fdde5632f8b42b12ad13ae193c
[INFO] running `Command { std: "docker" "start" "-a" "f850c069ff9d3e4e98d8d9ea14156dba931225fdde5632f8b42b12ad13ae193c", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/waterpouring-wasm/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.55
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.55
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking waterpouring-talk v0.1.0 (/opt/rustwide/workdir/waterpouring-talk)
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking waterpouring-model v0.1.0 (/opt/rustwide/workdir/waterpouring-model)
[INFO] [stderr]     Checking waterpouring-rec v0.1.0 (/opt/rustwide/workdir/waterpouring-rec)
[INFO] [stderr]     Checking waterpouring-imp v0.1.0 (/opt/rustwide/workdir/waterpouring-imp)
[INFO] [stderr]     Checking waterpouring-rec2 v0.1.0 (/opt/rustwide/workdir/waterpouring-rec2)
[INFO] [stdout] warning: the item `UnsolvableProblem` is imported redundantly
[INFO] [stdout]   --> waterpouring-rec/src/rec.rs:82:67
[INFO] [stdout]    |
[INFO] [stdout] 82 |     use waterpouring_model::solver::SolverError::{InvalidProblem, UnsolvableProblem};
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     use super::*;
[INFO] [stdout]    |         -------- the item `UnsolvableProblem` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/glass.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Glass::from("3");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let _ = Glass::from("3");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/glass.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             Glass::from("a/b");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 135 |             let _ = Glass::from("a/b");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/glass.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Glass::from("1/2/3");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let _ = Glass::from("1/2/3");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/state.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             State::from(s);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |             let _ = State::from(s);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/state.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |             State::from(s);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let _ = State::from(s);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> waterpouring-model/src/state.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |             State::from(s);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 173 |             let _ = State::from(s);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.55
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.55
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.55
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking waterpouring-wasm v0.1.0 (/opt/rustwide/workdir/waterpouring-wasm)
[INFO] [stderr]     Checking waterpouring-bench v0.1.0 (/opt/rustwide/workdir/waterpouring-bench)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.0, wasm-bindgen v0.2.55
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "f850c069ff9d3e4e98d8d9ea14156dba931225fdde5632f8b42b12ad13ae193c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f850c069ff9d3e4e98d8d9ea14156dba931225fdde5632f8b42b12ad13ae193c", kill_on_drop: false }`
[INFO] [stdout] f850c069ff9d3e4e98d8d9ea14156dba931225fdde5632f8b42b12ad13ae193c