[INFO] cloning repository https://github.com/eminence/snapshot_trim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eminence/snapshot_trim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fsnapshot_trim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fsnapshot_trim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1bb505cdca364d322f9268fbc7a284734044a4b
[INFO] testing eminence/snapshot_trim against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fsnapshot_trim" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eminence/snapshot_trim on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eminence/snapshot_trim
[INFO] finished tweaking git repo https://github.com/eminence/snapshot_trim
[INFO] tweaked toml for git repo https://github.com/eminence/snapshot_trim written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/eminence/snapshot_trim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.24
[INFO] [stderr]   Downloaded serde v1.0.24
[INFO] [stderr]   Downloaded serde_derive_internals v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d36b81413bc0711aedd1ff046b3e0db92d919338413b8bcfd58b85cf04791be
[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" "5d36b81413bc0711aedd1ff046b3e0db92d919338413b8bcfd58b85cf04791be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d36b81413bc0711aedd1ff046b3e0db92d919338413b8bcfd58b85cf04791be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d36b81413bc0711aedd1ff046b3e0db92d919338413b8bcfd58b85cf04791be", kill_on_drop: false }`
[INFO] [stdout] 5d36b81413bc0711aedd1ff046b3e0db92d919338413b8bcfd58b85cf04791be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 415f795f7de4c5b9c5d9492ca2ad15c4022dee5e777bbc422d7e58707b220194
[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" "415f795f7de4c5b9c5d9492ca2ad15c4022dee5e777bbc422d7e58707b220194", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling serde v1.0.24
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling docopt v0.8.1
[INFO] [stderr]    Compiling snapshot_trim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/main.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stdout]     |                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist", ...);
[INFO] [stdout]     |                                                          ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{}", "{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.90s
[INFO] running `Command { std: "docker" "inspect" "415f795f7de4c5b9c5d9492ca2ad15c4022dee5e777bbc422d7e58707b220194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415f795f7de4c5b9c5d9492ca2ad15c4022dee5e777bbc422d7e58707b220194", kill_on_drop: false }`
[INFO] [stdout] 415f795f7de4c5b9c5d9492ca2ad15c4022dee5e777bbc422d7e58707b220194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ef9cf30d1250a45ceee721a1bc78d10933501170a797bf4c97e4bfc4769e7fd
[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" "5ef9cf30d1250a45ceee721a1bc78d10933501170a797bf4c97e4bfc4769e7fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling snapshot_trim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/main.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stdout]     |                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist", ...);
[INFO] [stdout]     |                                                          ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 200 |         panic!("{}", "{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "5ef9cf30d1250a45ceee721a1bc78d10933501170a797bf4c97e4bfc4769e7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef9cf30d1250a45ceee721a1bc78d10933501170a797bf4c97e4bfc4769e7fd", kill_on_drop: false }`
[INFO] [stdout] 5ef9cf30d1250a45ceee721a1bc78d10933501170a797bf4c97e4bfc4769e7fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 82ea2df9d9876c3c1c715f0feb8f3aae4c5c6feae892682f17cb16ccf4f424b8
[INFO] running `Command { std: "docker" "start" "-a" "82ea2df9d9876c3c1c715f0feb8f3aae4c5c6feae892682f17cb16ccf4f424b8", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]    --> src/main.rs:200:17
[INFO] [stderr]     |
[INFO] [stderr] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stderr]     |                 ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(panic_fmt)]` on by default
[INFO] [stderr]     = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]     |
[INFO] [stderr] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist", ...);
[INFO] [stderr]     |                                                          ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 200 |         panic!("{}", "{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stderr]     |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/snapshot_trim-06072ff54e84508b
[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" "82ea2df9d9876c3c1c715f0feb8f3aae4c5c6feae892682f17cb16ccf4f424b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ea2df9d9876c3c1c715f0feb8f3aae4c5c6feae892682f17cb16ccf4f424b8", kill_on_drop: false }`
[INFO] [stdout] 82ea2df9d9876c3c1c715f0feb8f3aae4c5c6feae892682f17cb16ccf4f424b8