[INFO] fetching crate wasmer 1.0.2...
[INFO] checking wasmer-1.0.2 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate wasmer 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wasmer 1.0.2 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer 1.0.2
[INFO] finished tweaking crates.io crate wasmer 1.0.2
[INFO] tweaked toml for crates.io crate wasmer 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecd313173139fad8bf019e817e16b625d46d8e7c33ceca74b1d8db1e22d82be8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ecd313173139fad8bf019e817e16b625d46d8e7c33ceca74b1d8db1e22d82be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecd313173139fad8bf019e817e16b625d46d8e7c33ceca74b1d8db1e22d82be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd313173139fad8bf019e817e16b625d46d8e7c33ceca74b1d8db1e22d82be8", kill_on_drop: false }`
[INFO] [stdout] ecd313173139fad8bf019e817e16b625d46d8e7c33ceca74b1d8db1e22d82be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e70fde927fe51cbc181f97356eab6820c0359392cb8e3a7e14f8dac97d544039
[INFO] running `Command { std: "docker" "start" "-a" "e70fde927fe51cbc181f97356eab6820c0359392cb8e3a7e14f8dac97d544039", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling wasmer-vm v1.0.2
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling wasmer-derive v1.0.2
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling enumset_derive v0.5.4
[INFO] [stderr]     Checking enumset v1.0.6
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking indexmap v1.6.2
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking wasmer-types v1.0.2
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking wasmer-compiler v1.0.2
[INFO] [stderr]     Checking wasmer-engine v1.0.2
[INFO] [stderr]     Checking wasmer-object v1.0.2
[INFO] [stderr]     Checking wasmer-engine-native v1.0.2
[INFO] [stderr]     Checking wasmer-engine-jit v1.0.2
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking wasmer-compiler-cranelift v1.0.2
[INFO] [stderr]     Checking wasmer v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]    --> src/import_object.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             None,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Some`
[INFO] [stdout]    --> src/import_object.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             Some,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]    --> src/import_object.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             None,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Some`
[INFO] [stdout]    --> src/import_object.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             Some,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/externals.rs:212:20
[INFO] [stdout]     |
[INFO] [stdout] 212 |     struct MyEnv {};
[INFO] [stdout]     |                    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/externals.rs:284:20
[INFO] [stdout]     |
[INFO] [stdout] 284 |     struct MyEnv {};
[INFO] [stdout]     |                    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "e70fde927fe51cbc181f97356eab6820c0359392cb8e3a7e14f8dac97d544039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70fde927fe51cbc181f97356eab6820c0359392cb8e3a7e14f8dac97d544039", kill_on_drop: false }`
[INFO] [stdout] e70fde927fe51cbc181f97356eab6820c0359392cb8e3a7e14f8dac97d544039