[INFO] cloning repository https://github.com/norcalli/chash
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/norcalli/chash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnorcalli%2Fchash", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnorcalli%2Fchash'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73039800cdbfa035d3d3bb4dbd4972de532a96a4
[INFO] checking norcalli/chash against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnorcalli%2Fchash" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/norcalli/chash 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/norcalli/chash
[INFO] finished tweaking git repo https://github.com/norcalli/chash
[INFO] tweaked toml for git repo https://github.com/norcalli/chash written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/norcalli/chash 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]  Downloading crates ...
[INFO] [stderr]   Downloaded parse-display v0.5.1
[INFO] [stderr]   Downloaded clang-sys v1.2.1
[INFO] [stderr]   Downloaded structmeta-derive v0.1.3
[INFO] [stderr]   Downloaded structmeta v0.1.3
[INFO] [stderr]   Downloaded clang v1.0.3
[INFO] [stderr]   Downloaded parse-display-derive v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1d6cdd0535be0c123ec84f0029a4b648b6f002cebb7f8f7e3b82a81b9508f7cf
[INFO] running `Command { std: "docker" "start" "-a" "1d6cdd0535be0c123ec84f0029a4b648b6f002cebb7f8f7e3b82a81b9508f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d6cdd0535be0c123ec84f0029a4b648b6f002cebb7f8f7e3b82a81b9508f7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d6cdd0535be0c123ec84f0029a4b648b6f002cebb7f8f7e3b82a81b9508f7cf", kill_on_drop: false }`
[INFO] [stdout] 1d6cdd0535be0c123ec84f0029a4b648b6f002cebb7f8f7e3b82a81b9508f7cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e413b277d06ab8b00f79b2ca597730800525abff244f639095e5f5d16e12b915
[INFO] running `Command { std: "docker" "start" "-a" "e413b277d06ab8b00f79b2ca597730800525abff244f639095e5f5d16e12b915", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling clang-sys v1.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking clang v1.0.3
[INFO] [stderr]    Compiling structmeta-derive v0.1.3
[INFO] [stderr]    Compiling structmeta v0.1.3
[INFO] [stderr]    Compiling parse-display-derive v0.5.1
[INFO] [stderr]     Checking parse-display v0.5.1
[INFO] [stderr]     Checking chash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DebugHasher` is never constructed
[INFO] [stdout]    --> src/main.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | struct DebugHasher {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 271 | impl DebugHasher {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 272 |     fn new(label: impl std::fmt::Display) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash` is never used
[INFO] [stdout]    --> src/main.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn hash<T: Hash>(x: &T) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_hash` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn debug_hash<T: Hash>(x: &T, label: impl std::fmt::Display) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugHasher` is never constructed
[INFO] [stdout]    --> src/main.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | struct DebugHasher {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 271 | impl DebugHasher {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 272 |     fn new(label: impl std::fmt::Display) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash` is never used
[INFO] [stdout]    --> src/main.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn hash<T: Hash>(x: &T) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_hash` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn debug_hash<T: Hash>(x: &T, label: impl std::fmt::Display) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.5.1, structmeta-derive v0.1.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e413b277d06ab8b00f79b2ca597730800525abff244f639095e5f5d16e12b915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e413b277d06ab8b00f79b2ca597730800525abff244f639095e5f5d16e12b915", kill_on_drop: false }`
[INFO] [stdout] e413b277d06ab8b00f79b2ca597730800525abff244f639095e5f5d16e12b915
[INFO] checking norcalli/chash against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnorcalli%2Fchash" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/norcalli/chash 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 git repo https://github.com/norcalli/chash
[INFO] finished tweaking git repo https://github.com/norcalli/chash
[INFO] tweaked toml for git repo https://github.com/norcalli/chash written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/norcalli/chash 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 29efe13324668e41b63b536bc4d84b01eb2aad36407513166f47fa819f8e89f2
[INFO] running `Command { std: "docker" "start" "-a" "29efe13324668e41b63b536bc4d84b01eb2aad36407513166f47fa819f8e89f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29efe13324668e41b63b536bc4d84b01eb2aad36407513166f47fa819f8e89f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29efe13324668e41b63b536bc4d84b01eb2aad36407513166f47fa819f8e89f2", kill_on_drop: false }`
[INFO] [stdout] 29efe13324668e41b63b536bc4d84b01eb2aad36407513166f47fa819f8e89f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3cb13e9ed50273158d8d8705fc3d69f349b037a8976a95dbc4014e7c9e1c77c2
[INFO] running `Command { std: "docker" "start" "-a" "3cb13e9ed50273158d8d8705fc3d69f349b037a8976a95dbc4014e7c9e1c77c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling clang-sys v1.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking clang v1.0.3
[INFO] [stderr]    Compiling structmeta-derive v0.1.3
[INFO] [stderr]    Compiling structmeta v0.1.3
[INFO] [stderr]    Compiling parse-display-derive v0.5.1
[INFO] [stderr]     Checking parse-display v0.5.1
[INFO] [stderr]     Checking chash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DebugHasher` is never constructed
[INFO] [stdout]    --> src/main.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | struct DebugHasher {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 271 | impl DebugHasher {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 272 |     fn new(label: impl std::fmt::Display) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash` is never used
[INFO] [stdout]    --> src/main.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn hash<T: Hash>(x: &T) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_hash` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn debug_hash<T: Hash>(x: &T, label: impl std::fmt::Display) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugHasher` is never constructed
[INFO] [stdout]    --> src/main.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | struct DebugHasher {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 271 | impl DebugHasher {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 272 |     fn new(label: impl std::fmt::Display) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash` is never used
[INFO] [stdout]    --> src/main.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn hash<T: Hash>(x: &T) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_hash` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn debug_hash<T: Hash>(x: &T, label: impl std::fmt::Display) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.5.1, structmeta-derive v0.1.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3cb13e9ed50273158d8d8705fc3d69f349b037a8976a95dbc4014e7c9e1c77c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb13e9ed50273158d8d8705fc3d69f349b037a8976a95dbc4014e7c9e1c77c2", kill_on_drop: false }`
[INFO] [stdout] 3cb13e9ed50273158d8d8705fc3d69f349b037a8976a95dbc4014e7c9e1c77c2