[INFO] fetching crate zc 0.4.0...
[INFO] checking zc-0.4.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate zc 0.4.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate zc 0.4.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zc 0.4.0
[INFO] finished tweaking crates.io crate zc 0.4.0
[INFO] tweaked toml for crates.io crate zc 0.4.0 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate crates.io crate zc 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytecount v0.6.2
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.120
[INFO] [stderr]   Downloaded aliasable v0.1.3
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded serde_json v1.0.61
[INFO] [stderr]   Downloaded serde v1.0.120
[INFO] [stderr]   Downloaded toml v0.5.8
[INFO] [stderr]   Downloaded trybuild v1.0.38
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded zc-derive v0.4.0
[INFO] [stderr]   Downloaded dangerous v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97abc5f10b4eadfcf13090a827a304330263d9609d7261e831f1357b01535e17
[INFO] running `Command { std: "docker" "start" "-a" "97abc5f10b4eadfcf13090a827a304330263d9609d7261e831f1357b01535e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97abc5f10b4eadfcf13090a827a304330263d9609d7261e831f1357b01535e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97abc5f10b4eadfcf13090a827a304330263d9609d7261e831f1357b01535e17", kill_on_drop: false }`
[INFO] [stdout] 97abc5f10b4eadfcf13090a827a304330263d9609d7261e831f1357b01535e17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af73107f3616babd9f52db44b610cfd115c4e2843580c8e2924b81badde49b47
[INFO] running `Command { std: "docker" "start" "-a" "af73107f3616babd9f52db44b610cfd115c4e2843580c8e2924b81badde49b47", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling trybuild v1.0.38
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking dangerous v0.8.0
[INFO] [stderr]    Compiling zc-derive v0.4.0
[INFO] [stderr]     Checking zc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.26s
[INFO] running `Command { std: "docker" "inspect" "af73107f3616babd9f52db44b610cfd115c4e2843580c8e2924b81badde49b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af73107f3616babd9f52db44b610cfd115c4e2843580c8e2924b81badde49b47", kill_on_drop: false }`
[INFO] [stdout] af73107f3616babd9f52db44b610cfd115c4e2843580c8e2924b81badde49b47