[INFO] fetching crate sobani-tracker 0.1.0... [INFO] checking sobani-tracker-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate sobani-tracker 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate sobani-tracker 0.1.0 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 sobani-tracker 0.1.0 [INFO] finished tweaking crates.io crate sobani-tracker 0.1.0 [INFO] tweaked toml for crates.io crate sobani-tracker 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate sobani-tracker 0.1.0 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 winapi-util v0.1.4 [INFO] [stderr] Downloaded ryu v1.0.3 [INFO] [stderr] Downloaded memoffset v0.5.4 [INFO] [stderr] Downloaded hex v0.4.2 [INFO] [stderr] Downloaded async-attributes v1.1.1 [INFO] [stderr] Downloaded futures-timer v2.0.2 [INFO] [stderr] Downloaded async-task v1.3.1 [INFO] [stderr] Downloaded crossbeam-channel v0.4.2 [INFO] [stderr] Downloaded async-std v1.5.0 [INFO] [stderr] Downloaded syn v1.0.17 [INFO] [stderr] Downloaded futures-core v0.3.4 [INFO] [stderr] Downloaded futures-io v0.3.4 [INFO] [stderr] Downloaded kv-log-macro v1.0.4 [INFO] [stderr] Downloaded once_cell v1.3.1 [INFO] [stderr] Downloaded pin-project-lite v0.1.4 [INFO] [stderr] Downloaded proc-macro2 v1.0.10 [INFO] [stderr] Downloaded serde_derive v1.0.106 [INFO] [stderr] Downloaded serde_json v1.0.51 [INFO] [stderr] Downloaded mio-uds v0.6.7 [INFO] [stderr] Downloaded serde v1.0.106 [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] f371c13d8b02ebebad6e0dc10e362e218a25a4c3da4397647ee241d41f62cf97 [INFO] running `Command { std: "docker" "start" "-a" "f371c13d8b02ebebad6e0dc10e362e218a25a4c3da4397647ee241d41f62cf97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f371c13d8b02ebebad6e0dc10e362e218a25a4c3da4397647ee241d41f62cf97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f371c13d8b02ebebad6e0dc10e362e218a25a4c3da4397647ee241d41f62cf97", kill_on_drop: false }` [INFO] [stdout] f371c13d8b02ebebad6e0dc10e362e218a25a4c3da4397647ee241d41f62cf97 [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] 7a71e19ec1df2dcc50969bf230698c2b5c0cff5746fa1aefd704a1eff346b609 [INFO] running `Command { std: "docker" "start" "-a" "7a71e19ec1df2dcc50969bf230698c2b5c0cff5746fa1aefd704a1eff346b609", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking pretty_env_logger v0.4.0 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking sobani-tracker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.17s [INFO] running `Command { std: "docker" "inspect" "7a71e19ec1df2dcc50969bf230698c2b5c0cff5746fa1aefd704a1eff346b609", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a71e19ec1df2dcc50969bf230698c2b5c0cff5746fa1aefd704a1eff346b609", kill_on_drop: false }` [INFO] [stdout] 7a71e19ec1df2dcc50969bf230698c2b5c0cff5746fa1aefd704a1eff346b609 [INFO] checking sobani-tracker-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate sobani-tracker 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate sobani-tracker 0.1.0 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 sobani-tracker 0.1.0 [INFO] finished tweaking crates.io crate sobani-tracker 0.1.0 [INFO] tweaked toml for crates.io crate sobani-tracker 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate sobani-tracker 0.1.0 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] 7d045c97bdfb29d85d748734d020c76b5815d1e424bc1677a456b464d6ef0add [INFO] running `Command { std: "docker" "start" "-a" "7d045c97bdfb29d85d748734d020c76b5815d1e424bc1677a456b464d6ef0add", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d045c97bdfb29d85d748734d020c76b5815d1e424bc1677a456b464d6ef0add", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d045c97bdfb29d85d748734d020c76b5815d1e424bc1677a456b464d6ef0add", kill_on_drop: false }` [INFO] [stdout] 7d045c97bdfb29d85d748734d020c76b5815d1e424bc1677a456b464d6ef0add [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] a7f837d951449685b12906690925880e54bfe857f33fe15180c387861d3230dc [INFO] running `Command { std: "docker" "start" "-a" "a7f837d951449685b12906690925880e54bfe857f33fe15180c387861d3230dc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking pretty_env_logger v0.4.0 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking sobani-tracker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 25 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.76s [INFO] running `Command { std: "docker" "inspect" "a7f837d951449685b12906690925880e54bfe857f33fe15180c387861d3230dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7f837d951449685b12906690925880e54bfe857f33fe15180c387861d3230dc", kill_on_drop: false }` [INFO] [stdout] a7f837d951449685b12906690925880e54bfe857f33fe15180c387861d3230dc