[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 master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fsnapshot_trim" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eminence/snapshot_trim on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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-5/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc6b84002d4a91d61f3fb4c0fa43f2dbe3836442fe784be5f13d2029b5c6d6bd
[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" "bc6b84002d4a91d61f3fb4c0fa43f2dbe3836442fe784be5f13d2029b5c6d6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc6b84002d4a91d61f3fb4c0fa43f2dbe3836442fe784be5f13d2029b5c6d6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6b84002d4a91d61f3fb4c0fa43f2dbe3836442fe784be5f13d2029b5c6d6bd", kill_on_drop: false }`
[INFO] [stdout] bc6b84002d4a91d61f3fb4c0fa43f2dbe3836442fe784be5f13d2029b5c6d6bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--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] 4d3ebb2d710f1cb676e6923529f43e5ad42fe0130b98c9cbb5487ab88200cf67
[INFO] running `Command { std: "docker" "start" "-a" "4d3ebb2d710f1cb676e6923529f43e5ad42fe0130b98c9cbb5487ab88200cf67", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.24
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[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 serde_derive v1.0.24
[INFO] [stderr]    Compiling regex v0.2.3
[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 37.41s
[INFO] running `Command { std: "docker" "inspect" "4d3ebb2d710f1cb676e6923529f43e5ad42fe0130b98c9cbb5487ab88200cf67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3ebb2d710f1cb676e6923529f43e5ad42fe0130b98c9cbb5487ab88200cf67", kill_on_drop: false }`
[INFO] [stdout] 4d3ebb2d710f1cb676e6923529f43e5ad42fe0130b98c9cbb5487ab88200cf67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--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] 4778edc977a4042e89a937984ac59029c11b76390613b2275625c6b9506bfa0d
[INFO] running `Command { std: "docker" "start" "-a" "4778edc977a4042e89a937984ac59029c11b76390613b2275625c6b9506bfa0d", 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 1.10s
[INFO] running `Command { std: "docker" "inspect" "4778edc977a4042e89a937984ac59029c11b76390613b2275625c6b9506bfa0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4778edc977a4042e89a937984ac59029c11b76390613b2275625c6b9506bfa0d", kill_on_drop: false }`
[INFO] [stdout] 4778edc977a4042e89a937984ac59029c11b76390613b2275625c6b9506bfa0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] cdf62ec93b700ddc3a0492d154f43af24333d6edfc49dccb7a9de3f60d90d8fc
[INFO] running `Command { std: "docker" "start" "-a" "cdf62ec93b700ddc3a0492d154f43af24333d6edfc49dccb7a9de3f60d90d8fc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:200:17
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 200 |         panic!("{} Error: ~/.snapshot.toml doesn't exist");
[INFO] [stdout] 
[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 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/snapshot_trim-776184b562a4879b
[INFO] running `Command { std: "docker" "inspect" "cdf62ec93b700ddc3a0492d154f43af24333d6edfc49dccb7a9de3f60d90d8fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf62ec93b700ddc3a0492d154f43af24333d6edfc49dccb7a9de3f60d90d8fc", kill_on_drop: false }`
[INFO] [stdout] cdf62ec93b700ddc3a0492d154f43af24333d6edfc49dccb7a9de3f60d90d8fc