[INFO] cloning repository https://github.com/lucasfantacuci/rmailer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucasfantacuci/rmailer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfantacuci%2Frmailer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfantacuci%2Frmailer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88cb21088ca26ae34a23988ea1b060acbdc184d5
[INFO] checking lucasfantacuci/rmailer against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasfantacuci%2Frmailer" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucasfantacuci/rmailer on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucasfantacuci/rmailer
[INFO] finished tweaking git repo https://github.com/lucasfantacuci/rmailer
[INFO] tweaked toml for git repo https://github.com/lucasfantacuci/rmailer written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/lucasfantacuci/rmailer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded email v0.0.20
[INFO] [stderr]   Downloaded amq-protocol-types v1.2.0
[INFO] [stderr]   Downloaded amq-protocol v1.4.0
[INFO] [stderr]   Downloaded ascii_utils v0.9.3
[INFO] [stderr]   Downloaded snafu-derive v0.4.4
[INFO] [stderr]   Downloaded snafu v0.4.4
[INFO] [stderr]   Downloaded lettre v0.9.2
[INFO] [stderr]   Downloaded lettre_email v0.9.2
[INFO] [stderr]   Downloaded fast_chemail v0.9.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.4
[INFO] [stderr]   Downloaded built v0.3.2
[INFO] [stderr]   Downloaded cookie-factory v0.2.4
[INFO] [stderr]   Downloaded amq-protocol-codegen v1.4.0
[INFO] [stderr]   Downloaded amiquip v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc63618c248f5eb136b2363946c1c773764dca5f559e6c72de8d2f2b9d46a26
[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" "ecc63618c248f5eb136b2363946c1c773764dca5f559e6c72de8d2f2b9d46a26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc63618c248f5eb136b2363946c1c773764dca5f559e6c72de8d2f2b9d46a26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc63618c248f5eb136b2363946c1c773764dca5f559e6c72de8d2f2b9d46a26", kill_on_drop: false }`
[INFO] [stdout] ecc63618c248f5eb136b2363946c1c773764dca5f559e6c72de8d2f2b9d46a26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0bba64c0a17069acb422948d315eeb7b3de6fb29d2402726f9dd2f5f311abb1
[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" "a0bba64c0a17069acb422948d315eeb7b3de6fb29d2402726f9dd2f5f311abb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling cookie-factory v0.2.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling git2 v0.10.1
[INFO] [stderr]     Checking snafu v0.4.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]     Checking amq-protocol-types v1.2.0
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking lettre v0.9.2
[INFO] [stderr]    Compiling built v0.3.2
[INFO] [stderr]    Compiling amiquip v0.3.2
[INFO] [stderr]     Checking amq-protocol-codegen v1.4.0
[INFO] [stderr]     Checking lettre_email v0.9.2
[INFO] [stderr]    Compiling amq-protocol v1.4.0
[INFO] [stderr]     Checking mailer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `encode`
[INFO] [stdout]   --> src/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | use base64::{decode, encode};
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Result`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use serde_json::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `encode`
[INFO] [stdout]   --> src/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | use base64::{decode, encode};
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (i, message) in consumer.receiver().iter().enumerate() {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (i, message) in consumer.receiver().iter().enumerate() {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     channel.qos(0, 1, false);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     connection.close();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     channel.qos(0, 1, false);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     connection.close();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 08s
[INFO] running `Command { std: "docker" "inspect" "a0bba64c0a17069acb422948d315eeb7b3de6fb29d2402726f9dd2f5f311abb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0bba64c0a17069acb422948d315eeb7b3de6fb29d2402726f9dd2f5f311abb1", kill_on_drop: false }`
[INFO] [stdout] a0bba64c0a17069acb422948d315eeb7b3de6fb29d2402726f9dd2f5f311abb1