[INFO] fetching crate alkyne 0.1.0...
[INFO] checking alkyne-0.1.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate alkyne 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate alkyne 0.1.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate alkyne 0.1.0
[INFO] finished tweaking crates.io crate alkyne 0.1.0
[INFO] tweaked toml for crates.io crate alkyne 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate alkyne 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faecd0c9f61925e2f2bba41a85525bf48a3bf1fb600a8f1127bc2567f34397fb
[INFO] running `Command { std: "docker" "start" "-a" "faecd0c9f61925e2f2bba41a85525bf48a3bf1fb600a8f1127bc2567f34397fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faecd0c9f61925e2f2bba41a85525bf48a3bf1fb600a8f1127bc2567f34397fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faecd0c9f61925e2f2bba41a85525bf48a3bf1fb600a8f1127bc2567f34397fb", kill_on_drop: false }`
[INFO] [stdout] faecd0c9f61925e2f2bba41a85525bf48a3bf1fb600a8f1127bc2567f34397fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 872cdfe7f184e7fb4abe8a1e8b1b4562e6b5ff0fb60cbc72c02a4b5125ba6877
[INFO] running `Command { std: "docker" "start" "-a" "872cdfe7f184e7fb4abe8a1e8b1b4562e6b5ff0fb60cbc72c02a4b5125ba6877", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking toolshed v0.8.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking rustyline v5.0.6
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking alkyne v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.01s
[INFO] running `Command { std: "docker" "inspect" "872cdfe7f184e7fb4abe8a1e8b1b4562e6b5ff0fb60cbc72c02a4b5125ba6877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "872cdfe7f184e7fb4abe8a1e8b1b4562e6b5ff0fb60cbc72c02a4b5125ba6877", kill_on_drop: false }`
[INFO] [stdout] 872cdfe7f184e7fb4abe8a1e8b1b4562e6b5ff0fb60cbc72c02a4b5125ba6877