[INFO] cloning repository https://github.com/mikaelmello/tac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikaelmello/tac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Ftac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Ftac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b006b35671369ea43ff89313e3854b9ff1cd8beb
[INFO] testing mikaelmello/tac against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikaelmello%2Ftac" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikaelmello/tac on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikaelmello/tac
[INFO] finished tweaking git repo https://github.com/mikaelmello/tac
[INFO] tweaked toml for git repo https://github.com/mikaelmello/tac written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mikaelmello/tac already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bf844ac5f6d8b754553cc073849ef7f66aa40c3e4f5819df44746ed55e16d76
[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" "3bf844ac5f6d8b754553cc073849ef7f66aa40c3e4f5819df44746ed55e16d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bf844ac5f6d8b754553cc073849ef7f66aa40c3e4f5819df44746ed55e16d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bf844ac5f6d8b754553cc073849ef7f66aa40c3e4f5819df44746ed55e16d76", kill_on_drop: false }`
[INFO] [stdout] 3bf844ac5f6d8b754553cc073849ef7f66aa40c3e4f5819df44746ed55e16d76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6610f3f5ae64e83a94f4c2b07d2464a034fa935e684a8aa5b1d4e3743e8128aa
[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" "6610f3f5ae64e83a94f4c2b07d2464a034fa935e684a8aa5b1d4e3743e8128aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling os_str_bytes v3.1.0
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.22.1
[INFO] [stderr]    Compiling fd-lock v3.0.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]    Compiling rustyline v9.0.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.4
[INFO] [stderr]    Compiling tac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `disassemble`
[INFO] [stdout]   --> src/disassembler.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn disassemble(self, name: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.48s
[INFO] running `Command { std: "docker" "inspect" "6610f3f5ae64e83a94f4c2b07d2464a034fa935e684a8aa5b1d4e3743e8128aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6610f3f5ae64e83a94f4c2b07d2464a034fa935e684a8aa5b1d4e3743e8128aa", kill_on_drop: false }`
[INFO] [stdout] 6610f3f5ae64e83a94f4c2b07d2464a034fa935e684a8aa5b1d4e3743e8128aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08cd2caf69bd396e47638b4032fe09d636ad4e8b71da9189926d13e590e67139
[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" "08cd2caf69bd396e47638b4032fe09d636ad4e8b71da9189926d13e590e67139", kill_on_drop: false }`
[INFO] [stderr]    Compiling tac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `disassemble`
[INFO] [stdout]   --> src/disassembler.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn disassemble(self, name: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "08cd2caf69bd396e47638b4032fe09d636ad4e8b71da9189926d13e590e67139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08cd2caf69bd396e47638b4032fe09d636ad4e8b71da9189926d13e590e67139", kill_on_drop: false }`
[INFO] [stdout] 08cd2caf69bd396e47638b4032fe09d636ad4e8b71da9189926d13e590e67139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45a7917d3d0acc08c6b24a378fdc3fd242ca785263b1c10d72cd9a2161d636cb
[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" "45a7917d3d0acc08c6b24a378fdc3fd242ca785263b1c10d72cd9a2161d636cb", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `disassemble`
[INFO] [stderr]   --> src/disassembler.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn disassemble(self, name: &str) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tac` (bin "tac" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tac-2424e1d63165927d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test chunk::test::instruction_is_at_most_64_bits ... ok
[INFO] [stdout] test value::test::value_is_at_most_128_bits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45a7917d3d0acc08c6b24a378fdc3fd242ca785263b1c10d72cd9a2161d636cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a7917d3d0acc08c6b24a378fdc3fd242ca785263b1c10d72cd9a2161d636cb", kill_on_drop: false }`
[INFO] [stdout] 45a7917d3d0acc08c6b24a378fdc3fd242ca785263b1c10d72cd9a2161d636cb