[INFO] fetching crate tower-vm 0.3.0...
[INFO] testing tower-vm-0.3.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate tower-vm 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tower-vm 0.3.0
[INFO] finished tweaking crates.io crate tower-vm 0.3.0
[INFO] tweaked toml for crates.io crate tower-vm 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-vm 0.3.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c518fca68bd32920e3c709e48c1ce6475b47ac6a428450fc671402250145b498
[INFO] running `Command { std: "docker" "start" "-a" "c518fca68bd32920e3c709e48c1ce6475b47ac6a428450fc671402250145b498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c518fca68bd32920e3c709e48c1ce6475b47ac6a428450fc671402250145b498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c518fca68bd32920e3c709e48c1ce6475b47ac6a428450fc671402250145b498", kill_on_drop: false }`
[INFO] [stdout] c518fca68bd32920e3c709e48c1ce6475b47ac6a428450fc671402250145b498
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c890fdd7668fe7e96e8340bf1956979710d341b6196fba6450e01af3849d389
[INFO] running `Command { std: "docker" "start" "-a" "2c890fdd7668fe7e96e8340bf1956979710d341b6196fba6450e01af3849d389", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-vm v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `bytecode`
[INFO] [stdout]   --> src/interpreter/machine.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 | macro_rules! bytecode {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `zero` is never used
[INFO] [stdout]    --> src/interpreter/machine.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout]  60 | impl Machine {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn zero(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "2c890fdd7668fe7e96e8340bf1956979710d341b6196fba6450e01af3849d389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c890fdd7668fe7e96e8340bf1956979710d341b6196fba6450e01af3849d389", kill_on_drop: false }`
[INFO] [stdout] 2c890fdd7668fe7e96e8340bf1956979710d341b6196fba6450e01af3849d389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b70e14d8992537d11ee386cc78b693e2c7ba254c4badd8cd4732fd92bb260c7
[INFO] running `Command { std: "docker" "start" "-a" "4b70e14d8992537d11ee386cc78b693e2c7ba254c4badd8cd4732fd92bb260c7", kill_on_drop: false }`
[INFO] [stdout] warning: unused macro definition: `bytecode`
[INFO] [stdout]   --> src/interpreter/machine.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 | macro_rules! bytecode {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tower-vm v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `zero` is never used
[INFO] [stdout]    --> src/interpreter/machine.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout]  60 | impl Machine {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn zero(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]    --> src/interpreter/machine.rs:451:17
[INFO] [stdout]     |
[INFO] [stdout] 451 |         let mut start = vec![];
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "4b70e14d8992537d11ee386cc78b693e2c7ba254c4badd8cd4732fd92bb260c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b70e14d8992537d11ee386cc78b693e2c7ba254c4badd8cd4732fd92bb260c7", kill_on_drop: false }`
[INFO] [stdout] 4b70e14d8992537d11ee386cc78b693e2c7ba254c4badd8cd4732fd92bb260c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 093098b427430a4deceb9c35a577a1a3d10e564a4ce10bc9a64c3f38be3fefc8
[INFO] running `Command { std: "docker" "start" "-a" "093098b427430a4deceb9c35a577a1a3d10e564a4ce10bc9a64c3f38be3fefc8", kill_on_drop: false }`
[INFO] [stderr] warning: unused macro definition: `bytecode`
[INFO] [stderr]   --> src/interpreter/machine.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 | macro_rules! bytecode {
[INFO] [stderr]    |              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `zero` is never used
[INFO] [stderr]    --> src/interpreter/machine.rs:107:8
[INFO] [stderr]     |
[INFO] [stderr]  60 | impl Machine {
[INFO] [stderr]     | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 107 |     fn zero(&mut self) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tower-vm` (lib) generated 2 warnings
[INFO] [stderr] warning: value assigned to `start` is never read
[INFO] [stderr]    --> src/interpreter/machine.rs:451:17
[INFO] [stderr]     |
[INFO] [stderr] 451 |         let mut start = vec![];
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tower-vm` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tower_vm-acf15ad388c50b2c)
[INFO] [stdout] 
[INFO] [stdout] running 58 tests
[INFO] [stdout] test interpreter::machine::tests::test_arith_instrs ... ok
[INFO] [stdout] test interpreter::machine::tests::test_internal_stack_ops ... ok
[INFO] [stdout] test interpreter::machine::tests::test_push_instr ... ok
[INFO] [stdout] test interpreter::machine::tests::test_write ... ok
[INFO] [stdout] test interpreter::value::tests::test_bool_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_bool_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_char_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_f32_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_f32_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_f32_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_f64_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_f64_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_f64_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_i64_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_i64_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_i64_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_i64_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_i64_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_i8_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_u16_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_i32_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_to_string ... ok
[INFO] [stdout] test interpreter::value::tests::test_u16_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_u16_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_u16_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_u16_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_u64_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_u64_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_u64_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_u64_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_u8_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_u32_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_u8_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_u8_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_u8_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_u32_lifecycle ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_neg ... ok
[INFO] [stdout] test interpreter::value::tests::test_u64_arith ... ok
[INFO] [stdout] test interpreter::value::tests::test_u32_bitops ... ok
[INFO] [stdout] test interpreter::value::tests::test_u32_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_u8_not ... ok
[INFO] [stdout] test interpreter::value::tests::test_u32_shift ... ok
[INFO] [stdout] test interpreter::value::tests::test_i16_artih ... ok
[INFO] [stderr]      Running tests/hello_world.rs (/opt/rustwide/target/debug/deps/hello_world-5cc7be787b9021f1)
[INFO] [stdout] test interpreter::value::tests::test_i64_shift ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 58 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test hello_world ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower_vm
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "093098b427430a4deceb9c35a577a1a3d10e564a4ce10bc9a64c3f38be3fefc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "093098b427430a4deceb9c35a577a1a3d10e564a4ce10bc9a64c3f38be3fefc8", kill_on_drop: false }`
[INFO] [stdout] 093098b427430a4deceb9c35a577a1a3d10e564a4ce10bc9a64c3f38be3fefc8