[INFO] fetching crate sesters 0.3.2...
[INFO] checking sesters-0.3.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sesters 0.3.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate sesters 0.3.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sesters 0.3.2
[INFO] finished tweaking crates.io crate sesters 0.3.2
[INFO] tweaked toml for crates.io crate sesters 0.3.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate sesters 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ureq v2.2.0
[INFO] [stderr]   Downloaded serde_rusqlite v0.26.0
[INFO] [stderr]   Downloaded test-case v1.2.0
[INFO] [stderr]   Downloaded confy v0.4.0
[INFO] [stderr]   Downloaded hashlink v0.6.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.26
[INFO] [stderr]   Downloaded rusqlite v0.24.2
[INFO] [stderr]   Downloaded syn v1.0.68
[INFO] [stderr]   Downloaded libc v0.2.92
[INFO] [stderr]   Downloaded rusqlite_migration v0.5.0
[INFO] [stderr]   Downloaded libsqlite3-sys v0.20.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a5d93b83aab4b6f2c035f14ac610ae4300e84aaf56c49421692e8c7e7129d9e
[INFO] running `Command { std: "docker" "start" "-a" "1a5d93b83aab4b6f2c035f14ac610ae4300e84aaf56c49421692e8c7e7129d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a5d93b83aab4b6f2c035f14ac610ae4300e84aaf56c49421692e8c7e7129d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5d93b83aab4b6f2c035f14ac610ae4300e84aaf56c49421692e8c7e7129d9e", kill_on_drop: false }`
[INFO] [stdout] 1a5d93b83aab4b6f2c035f14ac610ae4300e84aaf56c49421692e8c7e7129d9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 403343f770519b292b6e786250fe3217cecc96ddd09a7bf508b7c5c4c6dfb61e
[INFO] running `Command { std: "docker" "start" "-a" "403343f770519b292b6e786250fe3217cecc96ddd09a7bf508b7c5c4c6dfb61e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking hashlink v0.6.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling test-case v1.2.0
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libsqlite3-sys v0.20.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking confy v0.4.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking ureq v2.2.0
[INFO] [stderr]     Checking rusqlite v0.24.2
[INFO] [stderr]     Checking serde_rusqlite v0.26.0
[INFO] [stderr]     Checking rusqlite_migration v0.5.0
[INFO] [stderr]     Checking sesters v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Utc` is imported redundantly
[INFO] [stdout]   --> src/rate.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use chrono::prelude::*;
[INFO] [stdout]    |     ------------------ the item `Utc` is already imported here
[INFO] [stdout] 22 | use chrono::Duration;
[INFO] [stdout] 23 | use chrono::Utc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Utc` is imported redundantly
[INFO] [stdout]   --> src/db/tests.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use chrono::offset::Utc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 | use super::*;
[INFO] [stdout]    |     -------- the item `Utc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Utc` is imported redundantly
[INFO] [stdout]   --> src/rate.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use chrono::prelude::*;
[INFO] [stdout]    |     ------------------ the item `Utc` is already imported here
[INFO] [stdout] 22 | use chrono::Duration;
[INFO] [stdout] 23 | use chrono::Utc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rate` and `amount` are never read
[INFO] [stdout]    --> src/currency.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct ConversionError<'a, 'c, 'r> {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 105 |     rate: &'r Rate<'c>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 106 |     amount: &'a PriceTag<'c>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConversionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal_separators` is never read
[INFO] [stdout]   --> src/price_format.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct PriceFormat {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 97 |     decimal_separators: Vec<char>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PriceFormat` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rate` and `amount` are never read
[INFO] [stdout]    --> src/currency.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct ConversionError<'a, 'c, 'r> {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] 105 |     rate: &'r Rate<'c>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 106 |     amount: &'a PriceTag<'c>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConversionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal_separators` is never read
[INFO] [stdout]   --> src/price_format.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub struct PriceFormat {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 97 |     decimal_separators: Vec<char>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PriceFormat` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/db/tests.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         &rate.cache_until().to_sql();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let _ = &rate.cache_until().to_sql();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/db/tests.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         &rates_uptodate;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let _ = &rates_uptodate;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/price_format.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 &price_format.regex;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 let _ = &price_format.regex;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.89s
[INFO] running `Command { std: "docker" "inspect" "403343f770519b292b6e786250fe3217cecc96ddd09a7bf508b7c5c4c6dfb61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403343f770519b292b6e786250fe3217cecc96ddd09a7bf508b7c5c4c6dfb61e", kill_on_drop: false }`
[INFO] [stdout] 403343f770519b292b6e786250fe3217cecc96ddd09a7bf508b7c5c4c6dfb61e