[INFO] fetching crate mlem 0.1.0...
[INFO] checking mlem-0.1.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate mlem 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mlem 0.1.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mlem 0.1.0
[INFO] finished tweaking crates.io crate mlem 0.1.0
[INFO] tweaked toml for crates.io crate mlem 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a44995d810259d3a623f62ad985c3d285cbe100a3c90bce14800e858c579e92
[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" "4a44995d810259d3a623f62ad985c3d285cbe100a3c90bce14800e858c579e92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a44995d810259d3a623f62ad985c3d285cbe100a3c90bce14800e858c579e92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a44995d810259d3a623f62ad985c3d285cbe100a3c90bce14800e858c579e92", kill_on_drop: false }`
[INFO] [stdout] 4a44995d810259d3a623f62ad985c3d285cbe100a3c90bce14800e858c579e92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "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] 9717be3474ae8112c2d25603753bc37235cdcf7831e6e376a8501a0674bae829
[INFO] running `Command { std: "docker" "start" "-a" "9717be3474ae8112c2d25603753bc37235cdcf7831e6e376a8501a0674bae829", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]     Checking serde_cbor v0.5.2
[INFO] [stderr]     Checking mlem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |     input: &'mach mut Read,
[INFO] [stdout]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     output: &'mach mut Write
[INFO] [stdout]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:51:52
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(max_words: usize, input: &'mach mut Read, output: &'mach mut Write) -> Self {
[INFO] [stdout]    |                                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:51:77
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(max_words: usize, input: &'mach mut Read, output: &'mach mut Write) -> Self {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |     input: &'mach mut Read,
[INFO] [stdout]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     output: &'mach mut Write
[INFO] [stdout]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:51:52
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(max_words: usize, input: &'mach mut Read, output: &'mach mut Write) -> Self {
[INFO] [stdout]    |                                                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/machine.rs:51:77
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn new(max_words: usize, input: &'mach mut Read, output: &'mach mut Write) -> Self {
[INFO] [stdout]    |                                                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.64s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9717be3474ae8112c2d25603753bc37235cdcf7831e6e376a8501a0674bae829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9717be3474ae8112c2d25603753bc37235cdcf7831e6e376a8501a0674bae829", kill_on_drop: false }`
[INFO] [stdout] 9717be3474ae8112c2d25603753bc37235cdcf7831e6e376a8501a0674bae829