[INFO] fetching crate serenity_ctrlc 0.3.0...
[INFO] checking serenity_ctrlc-0.3.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate serenity_ctrlc 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serenity_ctrlc 0.3.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serenity_ctrlc 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate serenity_ctrlc 0.3.0
[INFO] tweaked toml for crates.io crate serenity_ctrlc 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate serenity_ctrlc 0.3.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e96a84b1b826e6294ce0b012a74ea19d48256ea324ad92ce4d227037d6e30386
[INFO] running `Command { std: "docker" "start" "-a" "e96a84b1b826e6294ce0b012a74ea19d48256ea324ad92ce4d227037d6e30386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e96a84b1b826e6294ce0b012a74ea19d48256ea324ad92ce4d227037d6e30386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96a84b1b826e6294ce0b012a74ea19d48256ea324ad92ce4d227037d6e30386", kill_on_drop: false }`
[INFO] [stdout] e96a84b1b826e6294ce0b012a74ea19d48256ea324ad92ce4d227037d6e30386
[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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4ab71737a98c806e3319d56ba3f0f9c79c38be05e7d68a61a35d95eb9bb4a37
[INFO] running `Command { std: "docker" "start" "-a" "c4ab71737a98c806e3319d56ba3f0f9c79c38be05e7d68a61a35d95eb9bb4a37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling rustls v0.20.3
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[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
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[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling serenity v0.11.2
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking ordered-float v2.10.0
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.2
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tracing v0.1.30
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-rustls v0.23.2
[INFO] [stderr]     Checking h2 v0.3.11
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking async-tungstenite v0.17.2
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking hyper-rustls v0.23.0
[INFO] [stderr]     Checking reqwest v0.11.9
[INFO] [stderr]     Checking serenity_ctrlc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.37s
[INFO] running `Command { std: "docker" "inspect" "c4ab71737a98c806e3319d56ba3f0f9c79c38be05e7d68a61a35d95eb9bb4a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ab71737a98c806e3319d56ba3f0f9c79c38be05e7d68a61a35d95eb9bb4a37", kill_on_drop: false }`
[INFO] [stdout] c4ab71737a98c806e3319d56ba3f0f9c79c38be05e7d68a61a35d95eb9bb4a37